diff --git a/addons/base_import/i18n/base_import.pot b/addons/base_import/i18n/base_import.pot
index 95a310254a8..c6f0e647929 100644
--- a/addons/base_import/i18n/base_import.pot
+++ b/addons/base_import/i18n/base_import.pot
@@ -568,6 +568,13 @@ msgstr ""
 msgid "Preview"
 msgstr ""
 
+#. module: base_import
+#. odoo-javascript
+#: code:addons/base_import/static/src/import_data_progress/import_data_progress.xml:0
+#, python-format
+msgid "Progress bar"
+msgstr ""
+
 #. module: base_import
 #. odoo-javascript
 #: code:addons/base_import/static/src/import_data_sidepanel/import_data_sidepanel.xml:0
diff --git a/addons/base_import/static/src/import_data_progress/import_data_progress.xml b/addons/base_import/static/src/import_data_progress/import_data_progress.xml
index 4379a81cae9..f22e05be335 100644
--- a/addons/base_import/static/src/import_data_progress/import_data_progress.xml
+++ b/addons/base_import/static/src/import_data_progress/import_data_progress.xml
@@ -20,7 +20,7 @@
             <div t-else="" class="d-flex align-items-center mt-2">
                 <div class="progress flex-grow-1 rounded-3">
                     <div class="progress-bar progress-bar-striped" role="progressbar"
-                         aria-valuenow="props.importProgress" aria-valuemin="0" aria-valuemax="100"
+                         aria-valuenow="props.importProgress" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar"
                          t-att-style="'width: ' + props.importProgress.value + '%'">
                         <span class="fs-4"><t t-esc="props.importProgress.value" />%</span>
                     </div>
diff --git a/addons/gamification/data/gamification_karma_rank_data.xml b/addons/gamification/data/gamification_karma_rank_data.xml
index 04b049f4c64..9f46e526be4 100644
--- a/addons/gamification/data/gamification_karma_rank_data.xml
+++ b/addons/gamification/data/gamification_karma_rank_data.xml
@@ -19,7 +19,7 @@
         <field name="description_motivational" type="html">
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Earn your first points and join the adventure!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_newbie_badge.svg"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_newbie_badge.svg" alt=""/>
             </div>
         </field>
         <field name="karma_min">1</field>
@@ -32,7 +32,7 @@
         <field name="description_motivational" type="html">
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank to show the rest of the world you exist.</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_student_badge.svg"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_student_badge.svg" alt=""/>
             </div>
         </field>
         <field name="karma_min">100</field>
@@ -45,7 +45,7 @@
         <field name="description_motivational" type="html">
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank to improve your status!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_bachelor_badge.svg"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_bachelor_badge.svg" alt=""/>
             </div>
         </field>
         <field name="karma_min">500</field>
@@ -58,7 +58,7 @@
         <field name="description_motivational" type="html">
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and become a Master!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_master_badge.svg"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_master_badge.svg" alt=""/>
             </div>
         </field>
         <field name="karma_min">2000</field>
@@ -71,7 +71,7 @@
         <field name="description_motivational" type="html">
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and become a powerful user!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_doctor_badge.svg"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_doctor_badge.svg" alt=""/>
             </div>
         </field>
         <field name="karma_min">10000</field>
diff --git a/addons/gamification/data/gamification_karma_rank_demo.xml b/addons/gamification/data/gamification_karma_rank_demo.xml
index b7d0e0b7ec6..f2e7b789868 100644
--- a/addons/gamification/data/gamification_karma_rank_demo.xml
+++ b/addons/gamification/data/gamification_karma_rank_demo.xml
@@ -7,7 +7,7 @@
             <div hidden="true">Reach the next rank to show the rest of the world you exist.</div>
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and gain a very nice mug!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_mug.png"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_mug.png" alt=""/>
             </div>
         </field>
     </record>
@@ -17,7 +17,7 @@
             <div hidden="true">Reach the next rank to improve your status!</div>
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and gain a very magic wand!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_wand.png"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_wand.png" alt=""/>
             </div>
         </field>
     </record>
@@ -27,7 +27,7 @@
             <div hidden="true">Reach the next rank and become a Master!</div>
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and gain a very nice hat!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_hat.png"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_hat.png" alt=""/>
             </div>
         </field>
     </record>
@@ -37,7 +37,7 @@
             <div hidden="true">Reach the next rank and become a powerful user!</div>
             <div class="d-flex align-items-center">
                 <div class="flex-grow-1">Reach the next rank and gain a very nice unicorn!</div>
-                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_unicorn.png"/>
+                <img class="ms-3 img img-fluid" style="max-height: 72px;" src="/gamification/static/img/rank_misc_unicorn.png" alt=""/>
             </div>
         </field>
     </record>
diff --git a/addons/hr_skills/i18n/hr_skills.pot b/addons/hr_skills/i18n/hr_skills.pot
index c89d6924db0..311f1587f3b 100644
--- a/addons/hr_skills/i18n/hr_skills.pot
+++ b/addons/hr_skills/i18n/hr_skills.pot
@@ -1017,6 +1017,11 @@ msgstr ""
 msgid "Progress (%)"
 msgstr ""
 
+#. module: hr_skills
+#: model_terms:ir.ui.view,arch_db:hr_skills.report_employee_cv_main_panel
+msgid "Progress bar"
+msgstr ""
+
 #. module: hr_skills
 #: model:ir.model.fields,help:hr_skills.field_hr_employee_skill__level_progress
 #: model:ir.model.fields,help:hr_skills.field_hr_employee_skill_log__level_progress
diff --git a/addons/hr_skills/views/hr_employee_cv_templates.xml b/addons/hr_skills/views/hr_employee_cv_templates.xml
index 53a44b68408..26fd821624c 100644
--- a/addons/hr_skills/views/hr_employee_cv_templates.xml
+++ b/addons/hr_skills/views/hr_employee_cv_templates.xml
@@ -136,6 +136,7 @@
                                         t-attf-style="width: #{skill_line.level_progress}%; background: #{color_primary};"
                                         t-att-aria-valuenow="skill_line.level_progress"
                                         aria-valuemin="0"
+                                        aria-label="Progress bar"
                                         aria-valuemax="100"/>
                                 </div>
                             </div>
diff --git a/addons/mass_mailing/i18n/mass_mailing.pot b/addons/mass_mailing/i18n/mass_mailing.pot
index 0129e173265..1671d611875 100644
--- a/addons/mass_mailing/i18n/mass_mailing.pot
+++ b/addons/mass_mailing/i18n/mass_mailing.pot
@@ -3716,6 +3716,11 @@ msgstr ""
 msgid "Processing"
 msgstr ""
 
+#. module: mass_mailing
+#: model_terms:ir.ui.view,arch_db:mass_mailing.view_mail_mass_mailing_kanban
+msgid "Progress bar"
+msgstr ""
+
 #. module: mass_mailing
 #: model_terms:ir.ui.view,arch_db:mass_mailing.email_designer_snippets
 msgid "Promo Code"
diff --git a/addons/mass_mailing/views/mailing_mailing_views.xml b/addons/mass_mailing/views/mailing_mailing_views.xml
index c0a35e46581..cd2252d41b7 100644
--- a/addons/mass_mailing/views/mailing_mailing_views.xml
+++ b/addons/mass_mailing/views/mailing_mailing_views.xml
@@ -525,6 +525,7 @@
                                                         aria-valuemin="0"
                                                         t-att-aria-valuenow="record.delivered.raw_value"
                                                         t-att-aria-valuemax="record.expected.raw_value"
+                                                        aria-label="Progress bar"
                                                         t-attf-style="width: #{record.delivered.raw_value * 100 / record.expected.raw_value}%"/>
                                                 </div>
                                             </div>
diff --git a/addons/portal/views/portal_templates.xml b/addons/portal/views/portal_templates.xml
index 0056ceea760..1eb4e82a965 100644
--- a/addons/portal/views/portal_templates.xml
+++ b/addons/portal/views/portal_templates.xml
@@ -89,7 +89,8 @@
                     <t t-foreach="languages" t-as="lg">
                         <a class="dropdown-item" t-att-href="url_for(request.httprequest.path + '?' + keep_query(), lang_code=lg[0])"
                         t-attf-class="dropdown-item js_change_lang #{active_lang == lg and 'active'}"
-                        t-att-data-url_code="lg[1]" t-att-title="lg[2].split('/').pop()">
+                        t-att-data-url_code="lg[1]" t-att-title="lg[2].split('/').pop()"
+                        role="menuitem">
                             <span t-if="not no_text" t-esc="lg[2].split('/').pop()" t-attf-class="#{_txt_class}"/>
                             <span t-elif="codes" t-esc="lg[1].split('_').pop(0).upper()" t-attf-class="align-middle #{_txt_class}"/>
                         </a>
diff --git a/addons/portal_rating/i18n/portal_rating.pot b/addons/portal_rating/i18n/portal_rating.pot
index 24ede99ee73..68ea356ee5f 100644
--- a/addons/portal_rating/i18n/portal_rating.pot
+++ b/addons/portal_rating/i18n/portal_rating.pot
@@ -185,6 +185,13 @@ msgstr ""
 msgid "Post comment"
 msgstr ""
 
+#. module: portal_rating
+#. odoo-javascript
+#: code:addons/portal_rating/static/src/xml/portal_tools.xml:0
+#, python-format
+msgid "Progress bar"
+msgstr ""
+
 #. module: portal_rating
 #. odoo-javascript
 #: code:addons/portal_rating/static/src/xml/portal_chatter.xml:0
diff --git a/addons/portal_rating/static/src/xml/portal_tools.xml b/addons/portal_rating/static/src/xml/portal_tools.xml
index 94cac1fddc7..fe350cf0a7e 100644
--- a/addons/portal_rating/static/src/xml/portal_tools.xml
+++ b/addons/portal_rating/static/src/xml/portal_tools.xml
@@ -47,7 +47,7 @@
                             </td>
                             <td class="o_website_rating_table_progress">
                                 <div class="progress">
-                                    <div class="progress-bar o_rating_progressbar" role="progressbar" t-att-aria-valuenow="percent['percent']" aria-valuemin="0" aria-valuemax="100" t-att-style="'width:' + percent['percent'] + '%;'">
+                                    <div class="progress-bar o_rating_progressbar" role="progressbar" t-att-aria-valuenow="percent['percent']" aria-valuemin="0" aria-valuemax="100" t-att-style="'width:' + percent['percent'] + '%;'" aria-label="Progress bar">
                                     </div>
                                 </div>
                             </td>
diff --git a/addons/survey/i18n/survey.pot b/addons/survey/i18n/survey.pot
index e11c5dd4510..1b6737220d3 100644
--- a/addons/survey/i18n/survey.pot
+++ b/addons/survey/i18n/survey.pot
@@ -3557,6 +3557,11 @@ msgstr ""
 msgid "Products"
 msgstr ""
 
+#. module: survey
+#: model_terms:ir.ui.view,arch_db:survey.user_input_session_manage_content
+msgid "Progress bar"
+msgstr ""
+
 #. module: survey
 #: model:ir.model.fields,field_description:survey.field_survey_question_answer__question_id
 #: model:ir.model.fields,field_description:survey.field_survey_user_input_line__question_id
diff --git a/addons/survey/views/survey_templates_user_input_session.xml b/addons/survey/views/survey_templates_user_input_session.xml
index 8143540f60b..d727bd948a6 100644
--- a/addons/survey/views/survey_templates_user_input_session.xml
+++ b/addons/survey/views/survey_templates_user_input_session.xml
@@ -100,7 +100,7 @@
                     <div t-if="show_bar_chart or show_text_answers">
                         <div class="progress" title="Attendees are answering the question...">
                             <div class="progress-bar o_survey_session_progress_small fw-bold"
-                                 style="overflow: visible" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">
+                                 style="overflow: visible" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar">
                                 <span class="px-2">0 / <t t-esc="survey.session_answer_count" /></span>
                             </div>
                         </div>
@@ -143,7 +143,7 @@
                                 </span>
                             </h2>
                             <div class="progress">
-                                <div class="progress-bar fw-bold" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100"></div>
+                                <div class="progress-bar fw-bold" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar"></div>
                             </div>
                             <fieldset disabled="disabled" class="mt-5" t-if="question.question_type == 'matrix'" t-call="survey.question_container">
                                 <t t-set="hide_question_title" t-value="true" />
diff --git a/addons/web/i18n/web.pot b/addons/web/i18n/web.pot
index ffacc7f4f5f..df1095aa1a2 100644
--- a/addons/web/i18n/web.pot
+++ b/addons/web/i18n/web.pot
@@ -5684,6 +5684,13 @@ msgstr ""
 msgid "Progress Bar"
 msgstr ""
 
+#. module: web
+#. odoo-javascript
+#: code:addons/web/static/src/views/view_components/column_progress.xml:0
+#, python-format
+msgid "Progress bar"
+msgstr ""
+
 #. module: web
 #. odoo-javascript
 #: code:addons/web/static/src/views/fields/properties/properties_field.js:0
diff --git a/addons/web/static/src/views/view_components/column_progress.xml b/addons/web/static/src/views/view_components/column_progress.xml
index 9819e9f5351..1f5c9e07d77 100644
--- a/addons/web/static/src/views/view_components/column_progress.xml
+++ b/addons/web/static/src/views/view_components/column_progress.xml
@@ -15,6 +15,7 @@
                     aria-valuemin="0"
                     t-att-aria-valuemax="props.group.count"
                     t-att-aria-valuenow="bar.count"
+                    aria-label="Progress bar"
                     t-attf-data-tooltip="{{ bar.count }} {{ bar.string }}"
                     data-tooltip-delay="0"
                     t-on-click="() => this.onBarClick(bar)"
diff --git a/addons/web_editor/i18n/web_editor.pot b/addons/web_editor/i18n/web_editor.pot
index d54be013fbb..c9e6e8210c0 100644
--- a/addons/web_editor/i18n/web_editor.pot
+++ b/addons/web_editor/i18n/web_editor.pot
@@ -2353,6 +2353,13 @@ msgstr ""
 msgid "Primary"
 msgstr ""
 
+#. module: web_editor
+#. odoo-javascript
+#: code:addons/web_editor/static/src/components/upload_progress_toast/upload_progress_toast.xml:0
+#, python-format
+msgid "Progress bar"
+msgstr ""
+
 #. module: web_editor
 #: model:ir.model.fields.selection,name:web_editor.selection__web_editor_converter_test__selection_str__c
 msgid "Qu'est-ce qu'il fout ce maudit pancake, tabernacle ?"
diff --git a/addons/web_editor/static/src/components/upload_progress_toast/upload_progress_toast.xml b/addons/web_editor/static/src/components/upload_progress_toast/upload_progress_toast.xml
index b476acd45dc..da3c6ed08f5 100644
--- a/addons/web_editor/static/src/components/upload_progress_toast/upload_progress_toast.xml
+++ b/addons/web_editor/static/src/components/upload_progress_toast/upload_progress_toast.xml
@@ -11,7 +11,7 @@
         <span t-else="" class="text-danger"><i class="fa fa-times float-start my-1 me-1"/> <span class="o_we_error_text" t-esc="props.errorMessage ? props.errorMessage : 'File could not be saved'"/></span>
     </small>
     <div t-else="" class="progress">
-        <div class="progress-bar bg-info progress-bar-striped progress-bar-animated" role="progressbar" t-attf-style="width: {{this.progress}}%;"><span t-esc="this.progress + '%'"/></div>
+        <div class="progress-bar bg-info progress-bar-striped progress-bar-animated" role="progressbar" t-attf-style="width: {{this.progress}}%;" aria-label="Progress bar"><span t-esc="this.progress + '%'"/></div>
     </div>
     <hr/>
 </t>
diff --git a/addons/website/i18n/website.pot b/addons/website/i18n/website.pot
index 89bf1de0453..97dc2423070 100644
--- a/addons/website/i18n/website.pot
+++ b/addons/website/i18n/website.pot
@@ -1681,6 +1681,13 @@ msgstr ""
 msgid "Add new %s"
 msgstr ""
 
+#. module: website
+#. odoo-javascript
+#: code:addons/website/static/src/components/dialog/add_page_dialog.xml:0
+#, python-format
+msgid "Add page template"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.external_snippets
 msgid "Add to Cart Button"
@@ -2244,6 +2251,13 @@ msgstr ""
 msgid "Background Shape"
 msgstr ""
 
+#. module: website
+#. odoo-javascript
+#: code:addons/website/static/src/xml/website.background.video.xml:0
+#, python-format
+msgid "Background video"
+msgstr ""
+
 #. module: website
 #. odoo-javascript
 #: code:addons/website/static/src/components/wysiwyg_adapter/wysiwyg_adapter.js:0
@@ -2720,7 +2734,10 @@ msgid "Careful"
 msgstr ""
 
 #. module: website
+#. odoo-javascript
+#: code:addons/website/static/src/snippets/s_dynamic_snippet_carousel/000.xml:0
 #: model_terms:ir.ui.view,arch_db:website.snippets
+#, python-format
 msgid "Carousel"
 msgstr ""
 
@@ -4458,6 +4475,7 @@ msgstr ""
 
 #. module: website
 #: model:ir.model.fields,field_description:website.field_website_visitor__email
+#: model_terms:ir.ui.view,arch_db:website.s_share
 #: model_terms:ir.ui.view,arch_db:website.s_website_form_options
 #: model_terms:ir.ui.view,arch_db:website.website_visitor_view_kanban
 #: model_terms:ir.ui.view,arch_db:website.website_visitor_view_tree
@@ -4753,10 +4771,12 @@ msgstr ""
 
 #. module: website
 #. odoo-javascript
+#: code:addons/website/static/src/snippets/s_facebook_page/000.js:0
 #: code:addons/website/static/src/snippets/s_social_media/options.js:0
 #: model_terms:ir.ui.view,arch_db:website.footer_custom
 #: model_terms:ir.ui.view,arch_db:website.header_social_links
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_odoo_menu
+#: model_terms:ir.ui.view,arch_db:website.s_share
 #: model_terms:ir.ui.view,arch_db:website.s_social_media
 #: model_terms:ir.ui.view,arch_db:website.snippets
 #: model_terms:ir.ui.view,arch_db:website.template_footer_centered
@@ -6243,6 +6263,7 @@ msgstr ""
 
 #. module: website
 #. odoo-javascript
+#: code:addons/website/static/src/snippets/s_instagram_page/000.js:0
 #: code:addons/website/static/src/snippets/s_social_media/options.js:0
 #: model_terms:ir.ui.view,arch_db:website.header_social_links
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_odoo_menu
@@ -6939,6 +6960,7 @@ msgstr ""
 #: model_terms:ir.ui.view,arch_db:website.footer_custom
 #: model_terms:ir.ui.view,arch_db:website.header_social_links
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_odoo_menu
+#: model_terms:ir.ui.view,arch_db:website.s_share
 #: model_terms:ir.ui.view,arch_db:website.s_social_media
 #: model_terms:ir.ui.view,arch_db:website.template_footer_centered
 #, python-format
@@ -7027,6 +7049,7 @@ msgstr ""
 
 #. module: website
 #. odoo-javascript
+#: code:addons/website/static/src/client_actions/configurator/configurator.xml:0
 #: code:addons/website/static/src/js/editor/snippets.editor.js:0
 #: model_terms:ir.ui.view,arch_db:website.snippet_options
 #, python-format
@@ -7118,6 +7141,7 @@ msgid "Management"
 msgstr ""
 
 #. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_map
 #: model_terms:ir.ui.view,arch_db:website.snippets
 msgid "Map"
 msgstr ""
@@ -7214,6 +7238,13 @@ msgstr ""
 msgid "Media heading"
 msgstr ""
 
+#. module: website
+#. odoo-javascript
+#: code:addons/website/static/src/js/content/snippets.animation.js:0
+#, python-format
+msgid "Media video"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_three_columns_menu
 msgid "Mediterranean buffet of starters, main dishes and desserts"
@@ -7252,6 +7283,11 @@ msgstr ""
 msgid "Mega Menu Content"
 msgstr ""
 
+#. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_mega_menu_menu_image_menu
+msgid "Mega menu default image"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_menus_logos
 msgid "Men"
@@ -8651,6 +8687,11 @@ msgstr ""
 msgid "Pills"
 msgstr ""
 
+#. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_share
+msgid "Pinterest"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_website_form_options
 msgid "Placeholder"
@@ -8725,6 +8766,7 @@ msgid "Points of sale"
 msgstr ""
 
 #. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_popup
 #: model_terms:ir.ui.view,arch_db:website.snippet_options
 #: model_terms:ir.ui.view,arch_db:website.snippets
 msgid "Popup"
@@ -8932,6 +8974,11 @@ msgstr ""
 msgid "Progress Tracking"
 msgstr ""
 
+#. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_progress_bar
+msgid "Progress bar"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_odoo_menu
 msgid "Projectors"
@@ -11428,6 +11475,7 @@ msgstr ""
 #: model_terms:ir.ui.view,arch_db:website.footer_custom
 #: model_terms:ir.ui.view,arch_db:website.header_social_links
 #: model_terms:ir.ui.view,arch_db:website.s_mega_menu_odoo_menu
+#: model_terms:ir.ui.view,arch_db:website.s_share
 #: model_terms:ir.ui.view,arch_db:website.s_social_media
 #: model_terms:ir.ui.view,arch_db:website.template_footer_centered
 #: model_terms:ir.ui.view,arch_db:website.template_footer_headline
@@ -11832,6 +11880,7 @@ msgid "Vertical Alignment"
 msgstr ""
 
 #. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_video
 #: model_terms:ir.ui.view,arch_db:website.snippet_options_background_options
 #: model_terms:ir.ui.view,arch_db:website.snippets
 msgid "Video"
@@ -12510,6 +12559,11 @@ msgstr ""
 msgid "What you see is what you get"
 msgstr ""
 
+#. module: website
+#: model_terms:ir.ui.view,arch_db:website.s_share
+msgid "WhatsApp"
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_hr_options
 #: model_terms:ir.ui.view,arch_db:website.snippet_options
diff --git a/addons/website/static/src/client_actions/configurator/configurator.xml b/addons/website/static/src/client_actions/configurator/configurator.xml
index d7806e0fb80..de7a943afc7 100644
--- a/addons/website/static/src/client_actions/configurator/configurator.xml
+++ b/addons/website/static/src/client_actions/configurator/configurator.xml
@@ -42,7 +42,7 @@
                         </div>
                         <div t-attf-class="dropdown-menu border-0 shadow-lg {{state.selectedType ? 'o_step_completed' : 'o_step_todo show'}}" role="menu">
                             <t t-foreach="state.getWebsiteTypes()" t-as="type" t-key="type.name">
-                                <a t-att-title="type.name" t-on-click="() => this.selectWebsiteType(type.id)" class="dropdown-item o_change_website_type">
+                                <a t-att-title="type.name" t-on-click="() => this.selectWebsiteType(type.id)" class="dropdown-item o_change_website_type" role="menuitem">
                                     <t t-esc="type.label"/>
                                 </a>
                             </t>
@@ -104,7 +104,7 @@
                                 </div>
                             </div>
                             <div t-if="state.logo" class="o_configurator_logo_wrapper position-absolute d-flex justify-content-center align-items-center bg-white w-100 h-100">
-                                <img style="height: 120px" t-attf-src="{{state.logo}}"/>
+                                <img style="height: 120px" t-attf-src="{{state.logo}}" alt="Logo"/>
                             </div>
                             <i t-if="state.logo" class="fa fa-2x fa-times-circle text-danger position-absolute top-0 end-0 pe-2 pt-2" t-on-click="removeLogo"/>
                         </div>
diff --git a/addons/website/static/src/components/dialog/add_page_dialog.xml b/addons/website/static/src/components/dialog/add_page_dialog.xml
index b9ef5466bbe..8b837fad8ca 100644
--- a/addons/website/static/src/components/dialog/add_page_dialog.xml
+++ b/addons/website/static/src/components/dialog/add_page_dialog.xml
@@ -36,7 +36,7 @@
 
 <t t-name="website.AddPageTemplatePreview">
     <t t-call="website.AddPageTemplatePreviewWrapper">
-        <iframe class="border-0 pe-none transition-base" t-ref="iframe" src="about:blank"/>
+        <iframe class="border-0 pe-none transition-base" t-ref="iframe" src="about:blank" aria-label="Add page template"/>
     </t>
 </t>
 
diff --git a/addons/website/static/src/js/content/auto_hide_menu.js b/addons/website/static/src/js/content/auto_hide_menu.js
index 66f87da15a2..7c8a5b94e7f 100644
--- a/addons/website/static/src/js/content/auto_hide_menu.js
+++ b/addons/website/static/src/js/content/auto_hide_menu.js
@@ -217,11 +217,12 @@ async function autoHideMenu(el, options) {
 
         dropdownMenu.className = 'dropdown-menu';
         extraItemsToggle.className = 'nav-item dropdown o_extra_menu_items';
+        extraItemsToggle.setAttribute("role", "presentation");
         extraItemsToggleIcon.className = 'fa fa-plus';
         const extraItemsToggleAriaLabel = el.closest("[data-extra-items-toggle-aria-label]")
             ?.dataset.extraItemsToggleAriaLabel;
         Object.entries({
-            role: 'button',
+            role: 'menuitem',
             href: '#',
             class: 'nav-link dropdown-toggle o-no-caret',
             'data-bs-toggle': 'dropdown',
diff --git a/addons/website/static/src/js/content/snippets.animation.js b/addons/website/static/src/js/content/snippets.animation.js
index 9bc48f935cf..0b30f5fae84 100644
--- a/addons/website/static/src/js/content/snippets.animation.js
+++ b/addons/website/static/src/js/content/snippets.animation.js
@@ -4,6 +4,7 @@
  * Provides a way to start JS code for snippets' initialization and animations.
  */
 
+import { _t } from "@web/core/l10n/translation";
 import { loadJS } from "@web/core/assets";
 import { uniqueId } from "@web/core/utils/functions";
 import { escape } from "@web/core/utils/strings";
@@ -792,6 +793,7 @@ registry.mediaVideo = publicWidget.Widget.extend(MobileYoutubeAutoplayMixin, {
             src: src,
             frameborder: '0',
             allowfullscreen: 'allowfullscreen',
+            "aria-label": _t("Media video"),
         })[0];
         this.$el.append(iframeEl);
         return iframeEl;
diff --git a/addons/website/static/src/snippets/s_dynamic_snippet_carousel/000.xml b/addons/website/static/src/snippets/s_dynamic_snippet_carousel/000.xml
index 0026722cca9..0b7e8f9dcda 100644
--- a/addons/website/static/src/snippets/s_dynamic_snippet_carousel/000.xml
+++ b/addons/website/static/src/snippets/s_dynamic_snippet_carousel/000.xml
@@ -19,10 +19,10 @@
             <t t-set="slideIndexGenerator" t-value="Array.from(Array(Math.ceil(data.length/slideSize)).keys())"/>
             <t t-set="rowIndexGenerator" t-value="Array.from(Array(rowPerSlide).keys())"/>
             <t t-set="colIndexGenerator" t-value="Array.from(Array(rowSize).keys())"/>
-            <div class="carousel-inner row w-100 mx-auto" role="listbox">
+            <div class="carousel-inner row w-100 mx-auto" role="listbox" aria-label="Carousel">
                 <t t-foreach="slideIndexGenerator" t-as="slideIndex" t-key="slideIndex_index">
                     <t t-set="slideOffset" t-value="slideIndex * slideSize"/>
-                    <div t-attf-class="carousel-item #{extraClasses} #{slideIndex_first ? 'active' : ''}">
+                    <div t-attf-class="carousel-item #{extraClasses} #{slideIndex_first ? 'active' : ''}" role="option">
                         <t t-foreach="rowIndexGenerator" t-as="rowIndex" t-key="rowIndex_index">
                             <t t-set="rowOffset" t-value="slideOffset + (rowIndex * rowSize)"/>
                             <t t-if="rowOffset &lt; data.length">
diff --git a/addons/website/static/src/snippets/s_facebook_page/000.js b/addons/website/static/src/snippets/s_facebook_page/000.js
index 0060570ca95..057250bb221 100644
--- a/addons/website/static/src/snippets/s_facebook_page/000.js
+++ b/addons/website/static/src/snippets/s_facebook_page/000.js
@@ -1,5 +1,6 @@
 /** @odoo-module **/
 
+import { _t } from "@web/core/l10n/translation";
 import { pick } from "@web/core/utils/objects";
 import { clamp } from "@web/core/utils/numbers";
 import publicWidget from "@web/legacy/js/public/public_widget";
@@ -40,6 +41,7 @@ const FacebookPageWidget = publicWidget.Widget.extend({
             scrolling: 'no',
             frameborder: '0',
             allowTransparency: 'true',
+            "aria-label": _t("Facebook"),
         });
         this.$el.append(this.$iframe);
 
diff --git a/addons/website/static/src/snippets/s_instagram_page/000.js b/addons/website/static/src/snippets/s_instagram_page/000.js
index d3355b03190..63180c09207 100644
--- a/addons/website/static/src/snippets/s_instagram_page/000.js
+++ b/addons/website/static/src/snippets/s_instagram_page/000.js
@@ -1,5 +1,6 @@
 /** @odoo-module **/
 
+import { _t } from "@web/core/l10n/translation";
 import publicWidget from "@web/legacy/js/public/public_widget";
 
 // Note that Instagram can automatically detect the language of the user and
@@ -16,6 +17,7 @@ const InstagramPage = publicWidget.Widget.extend({
         const iframeEl = document.createElement("iframe");
         this.el.querySelector(".o_instagram_container").appendChild(iframeEl);
         iframeEl.setAttribute("scrolling", "no");
+        iframeEl.setAttribute("aria-label", _t("Instagram"));
         iframeEl.classList.add("w-100");
         // We can already estimate the height of the iframe.
         iframeEl.height = this._estimateIframeHeight();
diff --git a/addons/website/static/src/xml/website.background.video.xml b/addons/website/static/src/xml/website.background.video.xml
index c3abb037d7a..b43a7b0e839 100644
--- a/addons/website/static/src/xml/website.background.video.xml
+++ b/addons/website/static/src/xml/website.background.video.xml
@@ -10,7 +10,8 @@
             <iframe t-att-id="iframeID"
                     class="o_bg_video_iframe fade"
                     frameBorder="0"
-                    t-att-src="videoSrc"/>
+                    t-att-src="videoSrc"
+                    aria-label="Background video"/>
         </div>
     </t>
 </templates>
diff --git a/addons/website/views/snippets/s_faq_collapse.xml b/addons/website/views/snippets/s_faq_collapse.xml
index 5e368d721e0..b4219d70c4c 100644
--- a/addons/website/views/snippets/s_faq_collapse.xml
+++ b/addons/website/views/snippets/s_faq_collapse.xml
@@ -6,7 +6,7 @@
         <t t-set="uniq" t-value="datetime.datetime.now().microsecond"/>
         <div class="container">
             <div id="myCollapse" class="accordion" role="tablist">
-                <div class="card bg-white" data-name="Item">
+                <div class="card bg-white" data-name="Item" role="presentation">
                     <a href="#" t-attf-data-bs-target="#myCollapseTab{{uniq}}_1" role="tab" t-attf-aria-controls="myCollapseTab{{uniq}}_1" data-bs-toggle="collapse" aria-expanded="true" class="card-header">Terms of service</a>
                     <div t-attf-id="myCollapseTab{{uniq}}_1" class="collapse show" data-bs-parent="#myCollapse" role="tabpanel">
                         <div class="card-body">
@@ -14,7 +14,7 @@
                         </div>
                     </div>
                 </div>
-                <div class="card bg-white" data-name="Item">
+                <div class="card bg-white" data-name="Item" role="presentation">
                     <a href="#" t-attf-data-bs-target="#myCollapseTab{{uniq}}_2" role="tab" t-attf-aria-controls="myCollapseTab{{uniq}}_2" data-bs-toggle="collapse" aria-expanded="false" class="collapsed card-header">Links to other Websites</a>
                     <div t-attf-id="myCollapseTab{{uniq}}_2" class="collapse" data-bs-parent="#myCollapse" role="tabpanel">
                         <div class="card-body">
@@ -23,7 +23,7 @@
                         </div>
                     </div>
                 </div>
-                <div class="card bg-white" data-name="Item">
+                <div class="card bg-white" data-name="Item" role="presentation">
                     <a href="#" t-attf-data-bs-target="#myCollapseTab{{uniq}}_3" role="tab" t-attf-aria-controls="myCollapseTab{{uniq}}_3" data-bs-toggle="collapse" aria-expanded="false" class="collapsed card-header">Use of Cookies</a>
                     <div t-attf-id="myCollapseTab{{uniq}}_3" class="collapse" data-bs-parent="#myCollapse" role="tabpanel">
                         <div class="card-body">
diff --git a/addons/website/views/snippets/s_image_gallery.xml b/addons/website/views/snippets/s_image_gallery.xml
index d716a5d655c..61085d328d6 100644
--- a/addons/website/views/snippets/s_image_gallery.xml
+++ b/addons/website/views/snippets/s_image_gallery.xml
@@ -7,13 +7,13 @@
             <div id="slideshow_sample" class="carousel slide" data-bs-ride="carousel" data-bs-interval="0" style="margin: 0 12px;">
                 <div class="carousel-inner" style="padding: 0;">
                     <div class="carousel-item active">
-                        <img class="img img-fluid d-block" src="/web/image/website.library_image_08" data-name="Image" data-index="0"/>
+                        <img class="img img-fluid d-block" src="/web/image/website.library_image_08" data-name="Image" data-index="0" alt=" "/>
                     </div>
                     <div class="carousel-item">
-                        <img class="img img-fluid d-block" src="/web/image/website.library_image_03" data-name="Image" data-index="1"/>
+                        <img class="img img-fluid d-block" src="/web/image/website.library_image_03" data-name="Image" data-index="1" alt=" "/>
                     </div>
                     <div class="carousel-item">
-                        <img class="img img-fluid d-block" src="/web/image/website.library_image_02" data-name="Image" data-index="2"/>
+                        <img class="img img-fluid d-block" src="/web/image/website.library_image_02" data-name="Image" data-index="2" alt=" "/>
                     </div>
                 </div>
                 <ul class="carousel-indicators">
@@ -45,16 +45,16 @@
         <div class="container">
             <div class="row s_nb_column_fixed">
                 <div class="o_masonry_col o_snippet_not_selectable col-lg-4">
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_03" data-index="0" data-name="Image"/>
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_10" data-index="3" data-name="Image"/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_03" data-index="0" data-name="Image" alt=" "/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_10" data-index="3" data-name="Image" alt=" "/>
                 </div>
                 <div class="o_masonry_col o_snippet_not_selectable col-lg-4">
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_13" data-index="1" data-name="Image"/>
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_05" data-index="4" data-name="Image"/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_13" data-index="1" data-name="Image" alt=" "/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_05" data-index="4" data-name="Image" alt=" "/>
                 </div>
                 <div class="o_masonry_col o_snippet_not_selectable col-lg-4">
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_14" data-index="2" data-name="Image"/>
-                    <img class="img img-fluid d-block" src="/web/image/website.library_image_16" data-index="5" data-name="Image"/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_14" data-index="2" data-name="Image" alt=" "/>
+                    <img class="img img-fluid d-block" src="/web/image/website.library_image_16" data-index="5" data-name="Image" alt=" "/>
                 </div>
             </div>
         </div>
diff --git a/addons/website/views/snippets/s_map.xml b/addons/website/views/snippets/s_map.xml
index ee25c1d20da..22a276f8fab 100644
--- a/addons/website/views/snippets/s_map.xml
+++ b/addons/website/views/snippets/s_map.xml
@@ -9,7 +9,7 @@
                     An address must be specified for a map to be embedded
                 </div>
             </div>
-            <iframe t-if="not test_mode_enabled" class="s_map_embedded o_not_editable" src="https://maps.google.com/maps?q=250%20Executive%20Park%20Blvd%2C%20Suite%203400%20San%20Francisco%20California%20(US)%20United%20States&amp;t=m&amp;z=12&amp;ie=UTF8&amp;iwloc=&amp;output=embed" width="100%" height="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0"/>
+            <iframe t-if="not test_mode_enabled" class="s_map_embedded o_not_editable" src="https://maps.google.com/maps?q=250%20Executive%20Park%20Blvd%2C%20Suite%203400%20San%20Francisco%20California%20(US)%20United%20States&amp;t=m&amp;z=12&amp;ie=UTF8&amp;iwloc=&amp;output=embed" width="100%" height="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" aria-label="Map"/>
             <div class="s_map_color_filter"/>
         </div>
     </section>
diff --git a/addons/website/views/snippets/s_mega_menu_menu_image_menu.xml b/addons/website/views/snippets/s_mega_menu_menu_image_menu.xml
index b55cf16cafc..ae36f0b394e 100644
--- a/addons/website/views/snippets/s_mega_menu_menu_image_menu.xml
+++ b/addons/website/views/snippets/s_mega_menu_menu_image_menu.xml
@@ -17,7 +17,7 @@
                     </nav>
                 </div>
                 <div class="col-12 col-sm py-2 text-center">
-                    <img class="img-fluid" src="/web/image/website.s_mega_menu_menu_image_menu_default_image"/>
+                    <img class="img-fluid" src="/web/image/website.s_mega_menu_menu_image_menu_default_image" alt="Mega menu default image"/>
                 </div>
                 <div class="col-12 col-sm py-2 text-center">
                     <h4 class="o_default_snippet_text">Right Menu</h4>
diff --git a/addons/website/views/snippets/s_popup.xml b/addons/website/views/snippets/s_popup.xml
index f4a8c44f6fa..012bcb7b641 100644
--- a/addons/website/views/snippets/s_popup.xml
+++ b/addons/website/views/snippets/s_popup.xml
@@ -7,7 +7,7 @@
     their XML definition here as that would hurt the drag and drop feature.
     -->
     <div class="s_popup o_snippet_invisible" data-vcss="001">
-        <div class="modal fade s_popup_middle" style="background-color: var(--black-50) !important;" data-show-after="5000" data-display="afterDelay" data-consents-duration="7" data-bs-focus="false" data-bs-backdrop="false" tabindex="-1" role="dialog">
+        <div class="modal fade s_popup_middle" style="background-color: var(--black-50) !important;" data-show-after="5000" data-display="afterDelay" data-consents-duration="7" data-bs-focus="false" data-bs-backdrop="false" tabindex="-1" role="dialog" aria-label="Popup">
             <div class="modal-dialog d-flex">
                 <div class="modal-content oe_structure">
                     <div class="s_popup_close js_close_popup o_we_no_overlay o_not_editable" aria-label="Close">&#215;</div>
diff --git a/addons/website/views/snippets/s_progress_bar.xml b/addons/website/views/snippets/s_progress_bar.xml
index aa988d9fda6..d697e4d59ef 100644
--- a/addons/website/views/snippets/s_progress_bar.xml
+++ b/addons/website/views/snippets/s_progress_bar.xml
@@ -5,7 +5,7 @@
     <div class="s_progress_bar" data-display="inline">
         <h4 class="mb-0">We are almost done!</h4>
         <div class="progress">
-            <div class="progress-bar progress-bar-striped" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%; min-width: 3%">
+            <div class="progress-bar progress-bar-striped" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%; min-width: 3%" aria-label="Progress bar">
                 <span class="s_progress_bar_text">80% Development</span>
             </div>
         </div>
diff --git a/addons/website/views/snippets/s_share.xml b/addons/website/views/snippets/s_share.xml
index 63ad736076e..df23290f7ae 100644
--- a/addons/website/views/snippets/s_share.xml
+++ b/addons/website/views/snippets/s_share.xml
@@ -4,22 +4,22 @@
 <template id="s_share" name="Share">
     <div t-attf-class="s_share text-start o_no_link_popover #{_classes}">
         <h4 t-if="not _no_title" class="s_share_title d-none">Share</h4>
-        <a t-if="not _exclude_share_links or not 'facebook' in _exclude_share_links" href="https://www.facebook.com/sharer/sharer.php?u={url}" t-attf-class="s_share_facebook #{_link_classes}" target="_blank">
+        <a t-if="not _exclude_share_links or not 'facebook' in _exclude_share_links" href="https://www.facebook.com/sharer/sharer.php?u={url}" t-attf-class="s_share_facebook #{_link_classes}" target="_blank" aria-label="Facebook">
             <i t-attf-class="fa fa-facebook #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
-        <a t-if="not _exclude_share_links or not 'twitter' in _exclude_share_links" href="https://twitter.com/intent/tweet?text={title}&amp;url={url}" t-attf-class="s_share_twitter #{_link_classes}" target="_blank">
+        <a t-if="not _exclude_share_links or not 'twitter' in _exclude_share_links" href="https://twitter.com/intent/tweet?text={title}&amp;url={url}" t-attf-class="s_share_twitter #{_link_classes}" target="_blank" aria-label="Twitter">
             <i t-attf-class="fa fa-twitter #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
-        <a t-if="not _exclude_share_links or not 'linkedin' in _exclude_share_links" href="https://www.linkedin.com/sharing/share-offsite/?url={url}" t-attf-class="s_share_linkedin #{_link_classes}" target="_blank">
+        <a t-if="not _exclude_share_links or not 'linkedin' in _exclude_share_links" href="https://www.linkedin.com/sharing/share-offsite/?url={url}" t-attf-class="s_share_linkedin #{_link_classes}" target="_blank" aria-label="LinkedIn">
             <i t-attf-class="fa fa-linkedin #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
-        <a t-if="not _exclude_share_links or not 'whatsapp' in _exclude_share_links" href="https://wa.me/?text={title}" t-attf-class="s_share_whatsapp #{_link_classes}" target="_blank">
+        <a t-if="not _exclude_share_links or not 'whatsapp' in _exclude_share_links" href="https://wa.me/?text={title}" t-attf-class="s_share_whatsapp #{_link_classes}" target="_blank" aria-label="WhatsApp">
             <i t-attf-class="fa fa-whatsapp #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
-        <a t-if="not _exclude_share_links or not 'pinterest' in _exclude_share_links" href="https://pinterest.com/pin/create/button/?url={url}&amp;media={media}&amp;description={title}" t-attf-class="s_share_pinterest #{_link_classes}" target="_blank">
+        <a t-if="not _exclude_share_links or not 'pinterest' in _exclude_share_links" href="https://pinterest.com/pin/create/button/?url={url}&amp;media={media}&amp;description={title}" t-attf-class="s_share_pinterest #{_link_classes}" target="_blank" aria-label="Pinterest">
             <i t-attf-class="fa fa-pinterest #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
-        <a t-if="not _exclude_share_links or not 'email' in _exclude_share_links" href="mailto:?body={url}&amp;subject={title}" t-attf-class="s_share_email #{_link_classes}">
+        <a t-if="not _exclude_share_links or not 'email' in _exclude_share_links" href="mailto:?body={url}&amp;subject={title}" t-attf-class="s_share_email #{_link_classes}" aria-label="Email">
             <i t-attf-class="fa fa-envelope #{not _link_classes and 'rounded shadow-sm'}"/>
         </a>
     </div>
diff --git a/addons/website/views/snippets/s_tabs.xml b/addons/website/views/snippets/s_tabs.xml
index aeb36159a0b..348e70307ef 100644
--- a/addons/website/views/snippets/s_tabs.xml
+++ b/addons/website/views/snippets/s_tabs.xml
@@ -7,13 +7,13 @@
             <div class="s_tabs_main">
                 <div class="s_tabs_nav mb-3">
                     <ul class="nav nav-pills" role="tablist">
-                        <li class="nav-item">
+                        <li class="nav-item" role="presentation">
                             <a class="nav-link active" id="nav_tabs_link_1" data-bs-toggle="tab" href="#nav_tabs_content_1" role="tab" aria-controls="nav_tabs_content_1" aria-selected="true">Home</a>
                         </li>
-                        <li class="nav-item">
+                        <li class="nav-item" role="presentation">
                             <a class="nav-link" id="nav_tabs_link_2" data-bs-toggle="tab" href="#nav_tabs_content_2" role="tab" aria-controls="nav_tabs_content_2" aria-selected="false">Profile</a>
                         </li>
-                        <li class="nav-item">
+                        <li class="nav-item" role="presentation">
                             <a class="nav-link" id="nav_tabs_link_3" data-bs-toggle="tab" href="#nav_tabs_content_3" role="tab" aria-controls="nav_tabs_content_3" aria-selected="false">Contact</a>
                         </li>
                     </ul>
diff --git a/addons/website/views/snippets/s_video.xml b/addons/website/views/snippets/s_video.xml
index 7b3c300d911..7bfbba71a36 100644
--- a/addons/website/views/snippets/s_video.xml
+++ b/addons/website/views/snippets/s_video.xml
@@ -6,7 +6,7 @@
         <div class="css_editable_mode_display"></div>
         <div class="media_iframe_video_size"></div>
         <iframe src="//www.youtube.com/embed/G8b4UZIcTfg?rel=0&amp;autoplay=0"
-            frameborder="0" allowfullscreen="allowfullscreen"></iframe>
+            frameborder="0" allowfullscreen="allowfullscreen" aria-label="Video"></iframe>
     </div>
 </template>
 
diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index c4f97384267..20105434ec1 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -12,9 +12,10 @@
             <span t-field="submenu.name"/>
         </a>
     </li>
-    <li t-elif="show_dropdown" t-attf-class="#{item_class or ''} dropdown #{submenu.is_mega_menu and 'position-static'}">
+    <li t-elif="show_dropdown" t-attf-class="#{item_class or ''} dropdown #{submenu.is_mega_menu and 'position-static'}" role="presentation">
         <a t-attf-class="#{link_class or ''} dropdown-toggle #{submenu.is_mega_menu and 'o_mega_menu_toggle'} #{submenu._is_active() and 'active'} #{dropdown_toggler_classes}"
-           data-bs-toggle="dropdown" href="#" t-att-data-bs-display="'static' if submenu.is_mega_menu else None">
+           data-bs-toggle="dropdown" href="#" t-att-data-bs-display="'static' if submenu.is_mega_menu else None"
+           role="menuitem">
             <span t-field="submenu.name"/>
         </a>
         <div t-if="submenu.is_mega_menu and not is_mobile"
@@ -32,7 +33,8 @@
         <div t-if="submenu.is_mega_menu" t-elif="False"
              t-attf-class="dropdown-menu o_mega_menu #{submenu.mega_menu_classes}"
              data-name="Mega Menu"
-             t-field="submenu.mega_menu_content"/>
+             t-field="submenu.mega_menu_content"
+             role="menuitem"/>
         <ul t-else="" t-attf-class="dropdown-menu #{dropdown_menu_classes}" role="menu">
             <t t-foreach="submenu.child_id" t-as="submenu">
                 <t t-call="website.submenu">
@@ -235,7 +237,7 @@
                        t-attf-href="/web#menu_id=#{menu['id']}&amp;action=#{menu['action'] and menu['action'].split(',')[1] or ''}"/>
                 </div>
                 <a groups="website.group_website_restricted_editor" href="#" title="Edit this content" class="o_frontend_to_backend_edit_btn px-3 d-flex align-items-center justify-content-center text-decoration-none">
-                    <img src="/website/static/description/icon.png"/>Editor
+                    <img src="/website/static/description/icon.png" alt=""/>Editor
                 </a>
             </div>
         </div>
@@ -2086,8 +2088,13 @@
 </template>
 
 <!-- Language selector templates -->
+<!-- TODO adapt in master so this template receives lang as parameter -->
 <template id="lang_flag" name="Language Flag">
-    <img t-attf-class="o_lang_flag #{_flag_class}" t-attf-src="#{flag_image_src}?height=25"/>
+    <t t-set="lang" t-value="lg or active_lang"/>
+    <t t-set="lang_name" t-value="lang and lang[2].split('/').pop()"/>
+    <img t-attf-class="o_lang_flag #{_flag_class}"
+         t-attf-src="#{flag_image_src}?height=25"
+         t-att-alt="lang_name"/>
 </template>
 
 <template id="language_selector" inherit_id="portal.language_selector">
diff --git a/addons/website_sale/i18n/website_sale.pot b/addons/website_sale/i18n/website_sale.pot
index f59d96f37e9..e5a7f4454eb 100644
--- a/addons/website_sale/i18n/website_sale.pot
+++ b/addons/website_sale/i18n/website_sale.pot
@@ -4449,6 +4449,11 @@ msgstr ""
 msgid "eCommerce Shop"
 msgstr ""
 
+#. module: website_sale
+#: model_terms:ir.ui.view,arch_db:website_sale.header_cart_link
+msgid "eCommerce cart"
+msgstr ""
+
 #. module: website_sale
 #: model:ir.actions.server,name:website_sale.ir_cron_send_availability_email_ir_actions_server
 msgid "eCommerce: send email to customers about their abandoned cart"
diff --git a/addons/website_sale/views/templates.xml b/addons/website_sale/views/templates.xml
index 7eb8d0b362a..1cce718bca3 100644
--- a/addons/website_sale/views/templates.xml
+++ b/addons/website_sale/views/templates.xml
@@ -14,7 +14,7 @@
             <t t-set="show_cart" t-value="true"/>
             <li t-attf-class="#{_item_class} divider d-none"/> <!-- Make sure the cart and related menus are not folded (see autohideMenu) -->
             <li t-attf-class="o_wsale_my_cart #{not show_cart and 'd-none'} #{_item_class}">
-                <a href="/shop/cart" t-attf-class="#{_link_class}">
+                <a href="/shop/cart" t-attf-class="#{_link_class}" aria-label="eCommerce cart">
                     <div t-attf-class="#{_icon_wrap_class}">
                         <i t-if="_icon" class="fa fa-shopping-cart fa-stack"/>
                         <sup t-attf-class="my_cart_quantity badge text-bg-primary #{_badge_class} #{'d-none' if (website_sale_cart_quantity == 0) else ''}" t-esc="website_sale_cart_quantity" t-att-data-order-id="request.session.get('sale_order_id', '')"/>
diff --git a/addons/website_slides/i18n/website_slides.pot b/addons/website_slides/i18n/website_slides.pot
index 3dd3e8e1f3c..a0c17a86d43 100644
--- a/addons/website_slides/i18n/website_slides.pot
+++ b/addons/website_slides/i18n/website_slides.pot
@@ -1079,6 +1079,7 @@ msgstr ""
 #: code:addons/website_slides/static/src/js/slides_upload.js:0
 #: code:addons/website_slides/static/src/js/slides_upload.js:0
 #: model_terms:ir.actions.act_window,help:website_slides.slide_slide_action
+#: model_terms:ir.ui.view,arch_db:website_slides.course_slides_list
 #: model_terms:ir.ui.view,arch_db:website_slides.view_slide_channel_form
 #, python-format
 msgid "Add Content"
@@ -1135,6 +1136,11 @@ msgstr ""
 msgid "Add contacts..."
 msgstr ""
 
+#. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.course_slides_list_slide
+msgid "Add quiz"
+msgstr ""
+
 #. module: website_slides
 #: model_terms:ir.ui.view,arch_db:website_slides.slide_content_detailed
 msgid "Add your content here..."
@@ -1448,6 +1454,11 @@ msgstr ""
 msgid "Back"
 msgstr ""
 
+#. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_fullscreen
+msgid "Back to course"
+msgstr ""
+
 #. module: website_slides
 #: model:ir.model.fields,field_description:website_slides.field_slide_channel__website_default_background_image_url
 msgid "Background image URL"
@@ -2395,6 +2406,7 @@ msgstr ""
 #. module: website_slides
 #. odoo-javascript
 #: code:addons/website_slides/static/src/js/slides_category_delete.js:0
+#: model_terms:ir.ui.view,arch_db:website_slides.course_slides_list_slide
 #: model_terms:ir.ui.view,arch_db:website_slides.slide_channel_view_kanban
 #, python-format
 msgid "Delete"
@@ -2634,6 +2646,7 @@ msgid "Earn more Karma to leave a comment."
 msgstr ""
 
 #. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.course_slides_list_slide
 #: model_terms:ir.ui.view,arch_db:website_slides.slide_channel_view_kanban
 msgid "Edit"
 msgstr ""
@@ -2702,6 +2715,13 @@ msgstr ""
 msgid "Embed Views"
 msgstr ""
 
+#. module: website_slides
+#. odoo-python
+#: code:addons/website_slides/models/slide_slide.py:0
+#, python-format
+msgid "Embed code"
+msgstr ""
+
 #. module: website_slides
 #: model_terms:ir.ui.view,arch_db:website_slides.slide_social_embed
 msgid "Embed in another Website"
@@ -2803,6 +2823,11 @@ msgstr ""
 msgid "Exercises"
 msgstr ""
 
+#. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_fullscreen
+msgid "Exit Fullscreen"
+msgstr ""
+
 #. module: website_slides
 #: model:ir.model.fields,field_description:website_slides.field_slide_slide__embed_code_external
 msgid "External Embed Code"
@@ -2979,6 +3004,11 @@ msgid ""
 "From here you'll be able to monitor attendees and to track their progress."
 msgstr ""
 
+#. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_content_detailed
+msgid "Fullscreen"
+msgstr ""
+
 #. module: website_slides
 #: model:slide.channel.tag,name:website_slides.slide_channel_tag_role_furniture
 msgid "Furniture Designer"
@@ -3047,7 +3077,10 @@ msgid "Google Doc Key"
 msgstr ""
 
 #. module: website_slides
+#. odoo-python
+#: code:addons/website_slides/models/slide_slide.py:0
 #: model:ir.model.fields.selection,name:website_slides.selection__slide_slide__video_source_type__google_drive
+#, python-format
 msgid "Google Drive"
 msgstr ""
 
@@ -4077,6 +4110,7 @@ msgstr ""
 #. module: website_slides
 #. odoo-javascript
 #: code:addons/website_slides/static/src/xml/slide_quiz.xml:0
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_content_detailed
 #, python-format
 msgid "Next"
 msgstr ""
@@ -4537,11 +4571,17 @@ msgid "Presentation Published"
 msgstr ""
 
 #. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.course_slides_list_slide
 #: model_terms:ir.ui.view,arch_db:website_slides.lesson_card
 #: model_terms:ir.ui.view,arch_db:website_slides.view_slide_channel_form
 msgid "Preview"
 msgstr ""
 
+#. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_content_detailed
+msgid "Previous"
+msgstr ""
+
 #. module: website_slides
 #: model_terms:ir.ui.view,arch_db:website_slides.course_join
 msgid "Private Course"
@@ -4552,6 +4592,17 @@ msgstr ""
 msgid "Progress"
 msgstr ""
 
+#. module: website_slides
+#. odoo-javascript
+#: code:addons/website_slides/static/src/xml/slide_quiz.xml:0
+#: model_terms:ir.ui.view,arch_db:website_slides.course_card
+#: model_terms:ir.ui.view,arch_db:website_slides.course_join
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_fullscreen
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_main
+#, python-format
+msgid "Progress bar"
+msgstr ""
+
 #. module: website_slides
 #: model:ir.model.fields,field_description:website_slides.field_slide_channel__promoted_slide_id
 msgid "Promoted Slide"
@@ -4978,6 +5029,7 @@ msgid "Score"
 msgstr ""
 
 #. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.course_nav
 #: model_terms:ir.ui.view,arch_db:website_slides.course_slides_cards
 msgid "Search"
 msgstr ""
@@ -5129,6 +5181,7 @@ msgid "Settings"
 msgstr ""
 
 #. module: website_slides
+#: model_terms:ir.ui.view,arch_db:website_slides.slide_content_detailed
 #: model_terms:ir.ui.view,arch_db:website_slides.slide_fullscreen
 msgid "Share"
 msgstr ""
@@ -5343,7 +5396,10 @@ msgid ""
 msgstr ""
 
 #. module: website_slides
+#. odoo-javascript
+#: code:addons/website_slides/static/src/xml/website_slides_fullscreen.xml:0
 #: model:ir.model,name:website_slides.model_slide_slide
+#, python-format
 msgid "Slides"
 msgstr ""
 
@@ -6160,7 +6216,10 @@ msgid "Views •"
 msgstr ""
 
 #. module: website_slides
+#. odoo-python
+#: code:addons/website_slides/models/slide_slide.py:0
 #: model:ir.model.fields.selection,name:website_slides.selection__slide_slide__video_source_type__vimeo
+#, python-format
 msgid "Vimeo"
 msgstr ""
 
@@ -6612,7 +6671,10 @@ msgid "You're enrolled"
 msgstr ""
 
 #. module: website_slides
+#. odoo-python
+#: code:addons/website_slides/models/slide_slide.py:0
 #: model:ir.model.fields.selection,name:website_slides.selection__slide_slide__video_source_type__youtube
+#, python-format
 msgid "YouTube"
 msgstr ""
 
diff --git a/addons/website_slides/models/slide_slide.py b/addons/website_slides/models/slide_slide.py
index 681ed449f14..98c8ef50b65 100644
--- a/addons/website_slides/models/slide_slide.py
+++ b/addons/website_slides/models/slide_slide.py
@@ -478,9 +478,9 @@ class Slide(models.Model):
                 if slide.video_source_type == 'youtube':
                     query_params = urls.url_parse(slide.video_url).query
                     query_params = query_params + '&theme=light' if query_params else 'theme=light'
-                    embed_code = Markup('<iframe src="//www.youtube-nocookie.com/embed/%s?%s" allowFullScreen="true" frameborder="0"></iframe>') % (slide.youtube_id, query_params)
+                    embed_code = Markup('<iframe src="//www.youtube-nocookie.com/embed/%s?%s" allowFullScreen="true" frameborder="0" aria-label="%s"></iframe>') % (slide.youtube_id, query_params, _('YouTube'))
                 elif slide.video_source_type == 'google_drive':
-                    embed_code = Markup('<iframe src="//drive.google.com/file/d/%s/preview" allowFullScreen="true" frameborder="0"></iframe>') % (slide.google_drive_id)
+                    embed_code = Markup('<iframe src="//drive.google.com/file/d/%s/preview" allowFullScreen="true" frameborder="0" aria-label="%s"></iframe>') % (slide.google_drive_id, _('Google Drive'))
                 elif slide.video_source_type == 'vimeo':
                     if '/' in slide.vimeo_id:
                         # in case of privacy 'with URL only', vimeo adds a token after the video ID
@@ -488,20 +488,21 @@ class Slide(models.Model):
                         [vimeo_id, vimeo_token] = slide.vimeo_id.split('/')
                         embed_code = Markup("""
                             <iframe src="https://player.vimeo.com/video/%s?h=%s&badge=0&amp;autopause=0&amp;player_id=0"
-                                frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen></iframe>""") % (
-                                vimeo_id, vimeo_token)
+                                frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen aria-label="%s"></iframe>""") % (
+                                vimeo_id, vimeo_token, _('Vimeo'))
                     else:
                         embed_code = Markup("""
                             <iframe src="https://player.vimeo.com/video/%s?badge=0&amp;autopause=0&amp;player_id=0"
-                                frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen></iframe>""") % (slide.vimeo_id)
+                                frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen aria-label="%s"></iframe>""") % (slide.vimeo_id, _('Vimeo'))
             elif slide.slide_category in ['infographic', 'document'] and slide.source_type == 'external' and slide.google_drive_id:
-                embed_code = Markup('<iframe src="//drive.google.com/file/d/%s/preview" allowFullScreen="true" frameborder="0"></iframe>') % (slide.google_drive_id)
+                embed_code = Markup('<iframe src="//drive.google.com/file/d/%s/preview" allowFullScreen="true" frameborder="0" aria-label="%s"></iframe>') % (slide.google_drive_id, _('Google Drive'))
             elif slide.slide_category == 'document' and slide.source_type == 'local_file':
                 slide_url = base_url + url_for('/slides/embed/%s?page=1' % slide.id)
                 slide_url_external = base_url + url_for('/slides/embed_external/%s?page=1' % slide.id)
-                base_embed_code = Markup('<iframe src="%s" class="o_wslides_iframe_viewer" allowFullScreen="true" height="%s" width="%s" frameborder="0"></iframe>')
-                embed_code = base_embed_code % (slide_url, 315, 420)
-                embed_code_external = base_embed_code % (slide_url_external, 315, 420)
+                base_embed_code = Markup('<iframe src="%s" class="o_wslides_iframe_viewer" allowFullScreen="true" height="%s" width="%s" frameborder="0" aria-label="%s"></iframe>')
+                iframe_aria_label = _('Embed code')
+                embed_code = base_embed_code % (slide_url, 315, 420, iframe_aria_label)
+                embed_code_external = base_embed_code % (slide_url_external, 315, 420, iframe_aria_label)
 
             slide.embed_code = embed_code
             slide.embed_code_external = embed_code_external or embed_code
diff --git a/addons/website_slides/static/src/xml/slide_quiz.xml b/addons/website_slides/static/src/xml/slide_quiz.xml
index bb88983ef99..9f9324a484b 100644
--- a/addons/website_slides/static/src/xml/slide_quiz.xml
+++ b/addons/website_slides/static/src/xml/slide_quiz.xml
@@ -97,10 +97,19 @@
             </div>
             <div t-else="" class="d-md-flex align-items-center justify-content-between">
                 <div t-att-class="'d-flex align-items-center' + (widget.slide.completed ? ' alert alert-success my-0 py-1 px-3' : '')">
+                    <!-- TODO: In master, remove the aria-label of the button
+                        element, as it already has a title, to avoid an
+                        accessibility error of type `Elements with visible text
+                        labels do not have matching accessible names`. -->
                     <button t-if="! widget.slide.completed" role="button" title="Check answers" aria-label="Check answers"
                         class="btn btn-primary text-uppercase fw-bold o_wslides_js_lesson_quiz_submit">Check your answers</button>
                     <b t-else="" class="my-0 h5">Done!</b>
                     <span class="my-0 h5" style="line-height: 1">
+                        <!-- TODO: In master, remove the aria-label of the span
+                            element, as it already has a title, to avoid an
+                            accessibility error of type `Elements with visible
+                            text labels do not have matching accessible names`.
+                        -->
                         <span role="button" title="Succeed and gain karma" aria-label="Succeed and gain karma" class="badge rounded-pill bg-warning text-white fw-bold ms-3 px-2">
                             + <t t-if="!widget.slide.completed" t-esc="widget.quiz.quizKarmaGain"/><t t-else="" t-esc="widget.quiz.quizKarmaWon"/> XP
                         </span>
@@ -150,7 +159,7 @@
                         </h4>
                         <div class="mt-5 mb-4">
                             <div class="progress">
-                                <div class="progress-bar" role="progressbar" t-att-aria-valuenow="widget.quiz.rankProgress.previous_rank.progress" aria-valuemin="0" aria-valuemax="100"
+                                <div class="progress-bar" role="progressbar" t-att-aria-valuenow="widget.quiz.rankProgress.previous_rank.progress" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar"
                                     t-attf-style="width: #{widget.quiz.rankProgress.previous_rank.progress}%"/>
                                 <div class="progress-bar-tooltip" data-bs-toggle="tooltip" data-bs-placement="top" t-att-title="widget.quiz.rankProgress.new_rank.karma" />
                             </div>
diff --git a/addons/website_slides/static/src/xml/website_slides_fullscreen.xml b/addons/website_slides/static/src/xml/website_slides_fullscreen.xml
index eb7b56f84c8..0e5c08e3c22 100644
--- a/addons/website_slides/static/src/xml/website_slides_fullscreen.xml
+++ b/addons/website_slides/static/src/xml/website_slides_fullscreen.xml
@@ -3,7 +3,7 @@
     <t t-name="website.slides.fullscreen.content">
         <t t-if="widget.get('slide').category === 'document'">
             <div class="ratio h-100">
-                <iframe t-att-src="widget.get('slide').embedUrl" class="o_wslides_iframe_viewer" allowFullScreen="true" frameborder="0"/>
+                <iframe t-att-src="widget.get('slide').embedUrl" class="o_wslides_iframe_viewer" allowFullScreen="true" frameborder="0" aria-label="Slides"/>
             </div>
         </t>
         <t t-if="widget.get('slide').category === 'infographic'">
diff --git a/addons/website_slides/views/website_slides_templates_course.xml b/addons/website_slides/views/website_slides_templates_course.xml
index 4c2f90da478..e73bd97e2bd 100644
--- a/addons/website_slides/views/website_slides_templates_course.xml
+++ b/addons/website_slides/views/website_slides_templates_course.xml
@@ -86,7 +86,7 @@
                         </div>
 
                         <div class="btn-group ms-1 position-static">
-                            <a class="btn bg-black-25 text-white dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="fa fa-search"></i></a>
+                            <a class="btn bg-black-25 text-white dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-haspopup="true" aria-expanded="false" aria-label="Search"><i class="fa fa-search"></i></a>
                             <div class="dropdown-menu dropdown-menu-end w-100" style="right: 10px;">
                                 <t t-call="website.website_search_box_input">
                                     <t t-set="_classes" t-valuef="px-3"/>
@@ -173,14 +173,14 @@
                         </div>
                         <div class="col-12 col-md-8 col-lg-9 position-relative">
                             <ul class="nav nav-tabs o_wslides_nav_tabs flex-nowrap" role="tablist" id="profile_extra_info_tablist">
-                                <li class="nav-item">
+                                <li class="nav-item" role="presentation">
                                     <a t-att-class="'nav-link %s' % ('active' if active_tab == 'home' else '')"
                                         id="home-tab" data-bs-toggle="pill" href="#home" role="tab" aria-controls="home"
                                         t-att-aria-selected="'true' if active_tab == 'home' else 'false'">
                                         <i class="fa fa-home"/> Course
                                     </a>
                                 </li>
-                                <li t-if="channel.allow_comment" class="nav-item o_wslides_course_header_nav_review">
+                                <li t-if="channel.allow_comment" class="nav-item o_wslides_course_header_nav_review" role="presentation">
                                     <a t-att-class="'nav-link %s' % ('active' if active_tab == 'review' else '')"
                                         id="review-tab" data-bs-toggle="pill" href="#review" role="tab" aria-controls="review"
                                         t-att-aria-selected="'true' if active_tab == 'review' else 'false'">
@@ -416,7 +416,7 @@
                 </span>
                 <div t-attf-class="o_wslides_channel_completion_progressbar #{'d-none' if channel.completed else 'd-flex'} w-100 align-items-center">
                     <div class="progress flex-grow-1 bg-black-50" style="height: 6px;">
-                        <div class="progress-bar" role="progressbar" t-attf-style="width: #{channel.completion}%" t-att-aria-valuenow="channel.completion" aria-valuemin="0" aria-valuemax="100"></div>
+                        <div class="progress-bar" role="progressbar" t-attf-style="width: #{channel.completion}%" t-att-aria-valuenow="channel.completion" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar"></div>
                     </div>
                     <div class="ms-3 small">
                         <span class="o_wslides_progress_percentage" t-esc="channel.completion"/> %
@@ -462,6 +462,10 @@
                                 <span class="ms-1" t-field="category['category'].completion_time" t-options="{'widget': 'duration', 'format' : 'short', 'unit': 'hour', 'round': 'minute'}"/>
                             </div>
                             <div class="d-flex border-start ms-2 o_not_editable">
+                                <!-- TODO: review the aria-label which does not
+                                match the actual text thus triggering the
+                                warning "Elements with visible text labels do
+                                not have matching accessible names" -->
                                 <a  t-if="channel.can_upload"
                                     class="o_text_link o_wslides_js_slide_upload px-3 py-2"
                                     role="button"
@@ -490,6 +494,9 @@
             </t>
         </ul>
         <div t-if="channel.can_upload" class="o_wslides_content_actions o_not_editable btn-group">
+            <!-- TODO: review the aria-label which does not match the actual
+            text thus triggering the warning "Elements with visible text labels
+            do not have matching accessible names" -->
             <a  class="o_wslides_js_slide_upload me-1 border btn btn-primary"
                 role="button"
                 aria-label="Upload Document"
@@ -606,10 +613,10 @@
         </div>
 
         <div class="d-flex flex-row o_not_editable">
-            <a name="o_wslides_list_slide_add_quizz" t-if="channel.can_upload and not slide.question_ids" t-attf-href="/slides/slide/#{slug(slide)}?quiz_quick_create">
+            <a name="o_wslides_list_slide_add_quizz" t-if="channel.can_upload and not slide.question_ids" t-attf-href="/slides/slide/#{slug(slide)}?quiz_quick_create" aria-label="Add quiz">
                 <span class="badge text-bg-light badge-hide border fw-normal px-2 py-1 m-1">Add Quiz</span>
             </a>
-            <a t-if="channel.can_upload" href="#" name="o_wslides_slide_toggle_is_preview">
+            <a t-if="channel.can_upload" href="#" name="o_wslides_slide_toggle_is_preview" aria-label="Preview">
                 <span t-att-data-slide-id="slide.id" t-attf-class="o_wslides_js_slide_toggle_is_preview badge #{'text-bg-success' if slide.is_preview else 'text-bg-light badge-hide border'} fw-normal px-2 py-1 m-1"><span>Preview</span></span>
             </a>
             <t t-elif="slide.is_preview and not channel.is_member">
@@ -632,9 +639,9 @@
                 <t t-set="use_slide_icon" t-value="False"/>
             </t>
             <span t-if="channel.can_publish" class="d-none d-md-flex">
-                <a t-if="slide.slide_category == 'article'" class="mx-2 o_text_link text-primary o_not_editable" target="_blank" t-attf-href="/slides/slide/#{slug(slide)}?enable_editor=1"><span class="fa fa-pencil"/></a>
+                <a t-if="slide.slide_category == 'article'" class="mx-2 o_text_link text-primary o_not_editable" target="_blank" t-attf-href="/slides/slide/#{slug(slide)}?enable_editor=1" title="Edit"><span class="fa fa-pencil"/></a>
                 <a t-else="" class="mx-2 o_text_link text-primary o_not_editable" target="_blank" t-attf-href="/web#id=#{slide.id}&amp;action=#{slide_action}&amp;model=slide.slide&amp;view_type=form" title="Edit in backend"><span class="fa fa-pencil"/></a>
-                <a href="#" t-att-data-slide-id="slide.id" class="o_text_link text-danger mx-2 o_wslides_js_slide_archive o_not_editable"><span class="fa fa-trash"/></a>
+                <a href="#" t-att-data-slide-id="slide.id" class="o_text_link text-danger mx-2 o_wslides_js_slide_archive o_not_editable" title="Delete"><span class="fa fa-trash"/></a>
             </span>
         </div>
     </li>
@@ -780,6 +787,10 @@
             </div>
 
             <div t-if="channel.can_upload" class="text-end pb-2 col-auto">
+                <!-- TODO: In master, remove the aria-label of the next two
+                    anchors, as they already have a title, to avoid an
+                    accessibility error of type `Elements with visible text
+                    labels do not have matching accessible names`. -->
                 <a class="btn btn-primary py-1 o_wslides_js_slide_upload"
                     title="Upload Document" role="button"
                     aria-label="Upload Document" href="#"
diff --git a/addons/website_slides/views/website_slides_templates_homepage.xml b/addons/website_slides/views/website_slides_templates_homepage.xml
index 5f32e542608..91e4915ee1c 100644
--- a/addons/website_slides/views/website_slides_templates_homepage.xml
+++ b/addons/website_slides/views/website_slides_templates_homepage.xml
@@ -362,7 +362,7 @@
                         <span class="badge rounded-pill text-bg-success pull-right py-1 px-2"><i class="fa fa-check"/> Completed</span>
                     </t>
                     <div t-elif="channel.is_member and channel.channel_type != 'documentation'" class="progress w-50" style="height: 6px">
-                        <div class="progress-bar" role="progressbar" t-att-aria-valuenow="channel.completion" aria-valuemin="0" aria-valuemax="100" t-attf-style="width:#{channel.completion}%;"/>
+                        <div class="progress-bar" role="progressbar" t-att-aria-valuenow="channel.completion" aria-valuemin="0" aria-valuemax="100" t-attf-style="width:#{channel.completion}%;" aria-label="Progress bar"/>
                     </div>
                     <small t-else=""><b t-esc="channel.total_slides"/> steps</small>
                 </div>
diff --git a/addons/website_slides/views/website_slides_templates_lesson.xml b/addons/website_slides/views/website_slides_templates_lesson.xml
index cce8cd50ebf..f4c9f811e08 100644
--- a/addons/website_slides/views/website_slides_templates_lesson.xml
+++ b/addons/website_slides/views/website_slides_templates_lesson.xml
@@ -28,7 +28,7 @@
                                 </div>
                                 <div t-else="" t-attf-class="o_wslides_channel_completion_progressbar #{'d-none' if slide.channel_id.completed else 'd-flex'} align-items-center pb-3">
                                     <div class="progress w-50 bg-black-25" style="height: 10px;">
-                                        <div class="progress-bar rounded-start bg-info" role="progressbar"
+                                        <div class="progress-bar rounded-start bg-info" role="progressbar" aria-label="Progress bar"
                                             t-att-aria-valuenow="slide.channel_id.completion" aria-valuemin="0" aria-valuemax="100"
                                             t-attf-style="width: #{slide.channel_id.completion}%;">
                                         </div>
@@ -66,8 +66,8 @@
 <template id="slide_aside_documentation" name="Slide: Sidebar in Documentation">
     <div class="o_wslides_lesson_aside_doc position-relative bg-white pb-1 my-3 border-bottom">
         <ul class="nav nav-tabs nav-fill" role="tablist">
-            <li class="nav-item"><a aria-controls="related" href="#related" class="nav-link rounded-0 border-top-0 border-start-0 py-2 active" data-bs-toggle="tab">Related</a></li>
-            <li class="nav-item"><a aria-controls="most_viewed" href="#most_viewed" class="nav-link rounded-0 border-top-0 border-end-0 py-2" data-bs-toggle="tab">Most Viewed</a></li>
+            <li class="nav-item" role="presentation"><a aria-controls="related" href="#related" class="nav-link rounded-0 border-top-0 border-start-0 py-2 active" data-bs-toggle="tab" role="tab">Related</a></li>
+            <li class="nav-item" role="presentation"><a aria-controls="most_viewed" href="#most_viewed" class="nav-link rounded-0 border-top-0 border-end-0 py-2" data-bs-toggle="tab" role="tab">Most Viewed</a></li>
         </ul>
         <div class="tab-content">
             <div role="tabpanel" id="related" class="tab-pane active bg-100">
@@ -247,7 +247,7 @@
             </span>
             <div class="btn-group flex-grow-1 flex-sm-0 my-1" role="group" aria-label="Lesson Nav">
                 <a t-attf-class="o_wslides_nav_button btn btn-light border my-auto #{'disabled' if not previous_slide else ''} me-2"
-                    role="button" t-att-aria-disabled="'disabled' if not previous_slide else None"
+                    role="button" t-att-aria-disabled="'true' if not previous_slide else None" aria-label="Previous"
                     t-att-href="'/slides/slide/%s' % (slug(previous_slide)) if previous_slide else '#'">
                     <i class="oi oi-chevron-left me-2"></i> <span class="d-none d-sm-inline-block">Prev</span>
                 </a>
@@ -275,17 +275,17 @@
                     </t>
                 </div>
                 <a t-attf-class="o_wslides_nav_button btn btn-light border my-auto #{'disabled' if not next_slide else ''}"
-                    role="button" t-att-aria-disabled="'disabled' if not next_slide else None"
+                    role="button" t-att-aria-disabled="'true' if not next_slide else None" aria-label="Next"
                     t-att-href="'/slides/slide/%s' % (slug(next_slide)) if next_slide else '#'">
                     <span class="d-none d-sm-inline-block">Next</span> <i class="oi oi-chevron-right ms-2"></i>
                 </a>
             </div>
-            <a class="btn btn-light border ms-2 my-1" role="button" t-att-href="'/slides/slide/%s?fullscreen=1' % (slug(slide))">
+            <a class="btn btn-light border ms-2 my-1" role="button" t-att-href="'/slides/slide/%s?fullscreen=1' % (slug(slide))" aria-label="Fullscreen">
                 <i class="fa fa-desktop me-xl-2 my-1"/>
                 <span class="d-none d-xl-inline-block">Fullscreen</span>
             </a>
              <a class="btn btn-light border ms-2 my-1" role="button" data-bs-toggle="modal"
-                t-att-data-bs-target="'#slideShareModal_%s' % slide.id">
+                t-att-data-bs-target="'#slideShareModal_%s' % slide.id" aria-label="Share">
                 <i class="fa fa-share-alt me-xl-2 my-1"/>
                 <span class="d-none d-xl-inline-block">Share</span>
             </a>
@@ -318,17 +318,17 @@
 
     <div class="mb-5 position-relative">
         <ul class="nav nav-tabs o_wslides_lesson_nav" role="tablist">
-            <li class="nav-item">
+            <li class="nav-item" role="presentation">
                 <a href="#about" aria-controls="about" t-att-class="'nav-link active' if not comments else 'nav-link'" role="tab" data-bs-toggle="tab">
                     <i class="fa fa-home"></i> About
                 </a>
             </li>
-            <li class="nav-item">
+            <li class="nav-item" role="presentation">
                 <a href="#discuss" aria-controls="discuss" t-att-class="'nav-link active' if comments else 'nav-link'" role="tab" data-bs-toggle="tab">
                     <i class="fa fa-comments"></i> Comments (<span t-esc="slide.comments_count"/>)
                 </a>
             </li>
-            <li class="nav-item" groups="base.group_user">
+            <li class="nav-item" role="presentation" groups="base.group_user">
                 <a href="#statistic" aria-controls="statistic" class="nav-link" role="tab" data-bs-toggle="tab">
                     <i class="fa fa-bar-chart"></i> Statistics
                 </a>
diff --git a/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml b/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
index 6b34429f4a0..9b74e1a90fb 100644
--- a/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
+++ b/addons/website_slides/views/website_slides_templates_lesson_fullscreen.xml
@@ -45,10 +45,10 @@
                         <i class="fa fa-share-alt"/>
                         <span class="d-none d-md-inline-block ms-2">Share</span>
                     </a>
-                    <a class="d-flex align-items-center px-3 o_wslides_fs_exit_fullscreen" t-attf-href="/slides/slide/#{slug(slide)}">
+                    <a class="d-flex align-items-center px-3 o_wslides_fs_exit_fullscreen" t-attf-href="/slides/slide/#{slug(slide)}" title="Exit Fullscreen">
                         <i class="fa fa-sign-out"/><span class="d-none d-md-inline-block ms-1">Exit Fullscreen</span>
                     </a>
-                    <a class="d-flex align-items-center px-3" t-attf-href="/slides/#{slug(slide.channel_id)}">
+                    <a class="d-flex align-items-center px-3" t-attf-href="/slides/#{slug(slide.channel_id)}" title="Back to course">
                         <i class="fa fa-home"/><span class="d-none d-md-inline-block ms-1">Back to course</span>
                     </a>
                 </div>
@@ -69,7 +69,7 @@
                                 </span>
                                 <div t-attf-class="o_wslides_channel_completion_progressbar #{'d-none' if slide.channel_id.completed else 'd-flex'} w-100 align-items-center">
                                     <div class="progress flex-grow-1 bg-black-50" style="height: 6px;">
-                                        <div class="progress-bar" role="progressbar" t-attf-style="width: #{slide.channel_id.completion}%" t-att-aria-valuenow="slide.channel_id.completion" aria-valuemin="0" aria-valuemax="100"></div>
+                                        <div class="progress-bar" role="progressbar" t-attf-style="width: #{slide.channel_id.completion}%" t-att-aria-valuenow="slide.channel_id.completion" aria-valuemin="0" aria-valuemax="100" aria-label="Progress bar"></div>
                                     </div>
                                     <div class="ms-3 small">
                                         <span class="o_wslides_progress_percentage" t-esc="slide.channel_id.completion"/> %