diff --git a/addons/website/models/mixins.py b/addons/website/models/mixins.py
index 1d46b55c3bd..39a14b6060e 100644
--- a/addons/website/models/mixins.py
+++ b/addons/website/models/mixins.py
@@ -93,7 +93,8 @@ class SeoMetadata(models.AbstractModel):
         twitter_meta['twitter:image'] = meta_image
         return {
             'opengraph_meta': opengraph_meta,
-            'twitter_meta': twitter_meta
+            'twitter_meta': twitter_meta,
+            'meta_description': default_meta.get('default_meta_description')
         }
 
 
diff --git a/addons/website/static/src/js/menu/seo.js b/addons/website/static/src/js/menu/seo.js
index 85d959cb3c6..332fde71a4f 100644
--- a/addons/website/static/src/js/menu/seo.js
+++ b/addons/website/static/src/js/menu/seo.js
@@ -220,6 +220,8 @@ var HtmlPage = Class.extend(mixins.PropertiesMixin, {
     init: function () {
         mixins.PropertiesMixin.init.call(this);
         this.initTitle = this.title();
+        this.defaultTitle = $('meta[name="default_title"]').attr('content');
+        this.defaultDescription = $('meta[name="default_description"]').attr('content') || _t("The description will be generated by social media based on page content unless you specify one.");
         this.initDescription = this.description();
     },
     url: function () {
@@ -230,7 +232,7 @@ var HtmlPage = Class.extend(mixins.PropertiesMixin, {
     },
     changeTitle: function (title) {
         // TODO create tag if missing
-        $('title').text(title.trim() || this.initTitle);
+        $('title').text(title.trim() || this.defaultTitle);
         this.trigger('title-changed', title);
     },
     description: function () {
@@ -348,9 +350,12 @@ var MetaTitleDescription = Widget.extend({
         if (!this.canEditDescription) {
             this.$description.attr('disabled', true);
         }
-
-        this.$title.val(this.htmlPage.title());
-        this.$description.val(this.htmlPage.description());
+        if (this.htmlPage.title().trim() !== this.htmlPage.defaultTitle.trim()) {
+            this.$title.val(this.htmlPage.title());
+        }
+        if (this.htmlPage.description().trim() !== this.htmlPage.defaultDescription.trim()) {
+            this.$description.val(this.htmlPage.description());
+        }
 
         this._descriptionOnChange();
     },
@@ -358,13 +363,13 @@ var MetaTitleDescription = Widget.extend({
      * Get the current title
      */
     getTitle: function () {
-        return this.$title.val().trim() || this.htmlPage.initTitle;
+        return this.$title.val().trim() || this.htmlPage.defaultTitle;
     },
     /**
      * Get the current description
      */
     getDescription: function () {
-        return this.$description.val();
+        return this.$description.val() || this.htmlPage.defaultDescription;
     },
     /**
      * @private
diff --git a/addons/website/static/src/xml/website.seo.xml b/addons/website/static/src/xml/website.seo.xml
index bf2de26d4ce..1aac9fc49a7 100644
--- a/addons/website/static/src/xml/website.seo.xml
+++ b/addons/website/static/src/xml/website.seo.xml
@@ -62,13 +62,13 @@
                     <label for="website_meta_title">
                         Title <i class="fa fa-question-circle-o" title="The title will take a default value unless you specify one."/>
                     </label>
-                    <input type="text" name="website_meta_title" id="website_meta_title" class="form-control" maxlength="70" size="70"/>
+                    <input type="text" name="website_meta_title" id="website_meta_title" class="form-control" placeholder="Keep empty to use default value" maxlength="70" size="70"/>
                 </div>
                 <div class="form-group">
                     <label for="website_meta_description">
                         Description <i class="fa fa-question-circle-o" title="The description will be generated by search engines based on page content unless you specify one."/>
                     </label>
-                    <textarea name="website_meta_description" id="website_meta_description" class="form-control"/>
+                    <textarea name="website_meta_description" id="website_meta_description" placeholder="Keep empty to use default value" class="form-control"/>
                     <div class="alert alert-warning mt16 mb0 small" id="website_meta_description_warning" style="display: none;"/>
                 </div>
             </div>
@@ -140,7 +140,7 @@
             </div>
             <div class="col-lg-6">
                 <div class="card p-0 mb16">
-                    <div class="card-header">Preview</div>
+                    <div class="card-header">Social Preview</div>
                     <img class="card-img-top o_meta_active_img" t-att-src="widget.activeMetaImg"/>
                     <div class="card-body px-3 py-2">
                         <h6 class="text-alpha card-title mb0"><t t-esc="widget.metaTitle"/></h6>
diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index 36e376975d2..6da73cda8dd 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -173,14 +173,15 @@
             'data-oe-company-name': res_company.name
         }"/>
         <t t-if="not title">
+            <t t-if="not additional_title and main_object and 'name' in main_object">
+                <t t-set="additional_title" t-value="main_object.name"/>
+            </t>
+            <t t-set="default_title"> <t t-if="additional_title"><t t-raw="additional_title"/> | </t><t t-raw="(website or res_company).name"/> </t>
             <t t-if="main_object and 'website_meta_title' in main_object and main_object.website_meta_title">
                 <t t-set="title" t-value="main_object.website_meta_title"/>
             </t>
             <t t-else="">
-                <t t-if="not additional_title and main_object and 'name' in main_object">
-                    <t t-set="additional_title" t-value="main_object.name"/>
-                </t>
-                <t t-set="title"><t t-if="additional_title"><t t-raw="additional_title"/> | </t><t t-raw="(website or res_company).name"/></t>
+                <t t-set="title" t-value="default_title"></t>
             </t>
         </t>
         <t t-set="x_icon" t-value="'/web/image/website/%s/favicon/' % website.id"/>
@@ -188,17 +189,18 @@
     <xpath expr="//t[@t-set='head_website']" position="replace">
         <t t-set="head_website">
             <meta name="generator" content="Odoo"/>
-
+            <t t-set="website_meta" t-value="main_object and main_object.get_website_meta() or {}"/>
+            <meta name="default_title" t-att-content="default_title" groups="website.group_website_designer"/>
             <meta t-if="main_object and 'website_indexed' in main_object
                 and not main_object.website_indexed" name="robots" content="noindex"/>
             <t t-set="meta_description" t-value="main_object and 'website_meta_description' in main_object
-                and main_object.website_meta_description or website_meta_description"/>
+                and main_object.website_meta_description or website_meta_description or website_meta.get('meta_description', '')"/>
             <t t-set="meta_keywords" t-value="main_object and 'website_meta_keywords' in main_object
                 and main_object.website_meta_keywords or website_meta_keywords"/>
             <meta t-if="meta_description or editable" name="description" t-att-content="meta_description"/>
             <meta t-if="meta_keywords or editable" name="keywords" t-att-content="meta_keywords"/>
             <t t-if="main_object">
-                <t t-set="website_meta" t-value="main_object.get_website_meta()"/>
+                <meta name="default_description" t-att-content="website_meta_description or website_meta.get('meta_description')" groups="website.group_website_designer"/>
                 <!-- OpenGraph tags for Facebook sharing -->
                 <t t-set="opengraph_meta" t-value="website_meta.get('opengraph_meta')"/>
                 <t t-if="opengraph_meta">
diff --git a/addons/website_blog/models/website_blog.py b/addons/website_blog/models/website_blog.py
index 6616b62ce43..c6a4fda0b3b 100644
--- a/addons/website_blog/models/website_blog.py
+++ b/addons/website_blog/models/website_blog.py
@@ -274,4 +274,5 @@ class BlogPost(models.Model):
         blog_post_cover_properties = json.loads(self.cover_properties)
         res['default_opengraph']['og:image'] = res['default_twitter']['twitter:image'] = blog_post_cover_properties.get('background-image', 'none')[4:-1]
         res['default_opengraph']['og:title'] = res['default_twitter']['twitter:title'] = self.name
+        res['default_meta_description'] = self.subtitle
         return res
diff --git a/addons/website_event/models/event.py b/addons/website_event/models/event.py
index 90dc9f0a856..17d9b1bd328 100644
--- a/addons/website_event/models/event.py
+++ b/addons/website_event/models/event.py
@@ -154,4 +154,5 @@ class Event(models.Model):
         res['default_opengraph']['og:title'] = res['default_twitter']['twitter:title'] = self.name
         res['default_opengraph']['og:description'] = res['default_twitter']['twitter:description'] = self.date_begin
         res['default_twitter']['twitter:card'] = 'summary'
+        res['default_meta_description'] = self.date_begin
         return res
diff --git a/addons/website_forum/models/forum.py b/addons/website_forum/models/forum.py
index 60a6edea242..be2a5822127 100644
--- a/addons/website_forum/models/forum.py
+++ b/addons/website_forum/models/forum.py
@@ -389,6 +389,7 @@ class Post(models.Model):
         res['default_opengraph']['og:description'] = res['default_twitter']['twitter:description'] = self.plain_content
         res['default_opengraph']['og:image'] = res['default_twitter']['twitter:image'] = "/web/image/res.users/%s/image" % (self.create_uid.id)
         res['default_twitter']['twitter:card'] = 'summary'
+        res['default_meta_description'] = self.plain_content
         return res
 
     @api.constrains('parent_id')
diff --git a/addons/website_sale/models/product.py b/addons/website_sale/models/product.py
index c3c641bedff..e4d37a6ec76 100644
--- a/addons/website_sale/models/product.py
+++ b/addons/website_sale/models/product.py
@@ -376,6 +376,7 @@ class ProductTemplate(models.Model):
         res['default_opengraph']['og:description'] = res['default_twitter']['twitter:description'] = self.description_sale
         res['default_opengraph']['og:title'] = res['default_twitter']['twitter:title'] = self.name
         res['default_opengraph']['og:image'] = res['default_twitter']['twitter:image'] = "/web/image/product.template/%s/image" % (self.id)
+        res['default_meta_description'] = self.description_sale
         return res
 
     @api.multi
diff --git a/addons/website_slides/models/slide_slide.py b/addons/website_slides/models/slide_slide.py
index 7b05ed91584..91c327b9090 100644
--- a/addons/website_slides/models/slide_slide.py
+++ b/addons/website_slides/models/slide_slide.py
@@ -669,4 +669,5 @@ class Slide(models.Model):
         res['default_opengraph']['og:title'] = res['default_twitter']['twitter:title'] = self.name
         res['default_opengraph']['og:description'] = res['default_twitter']['twitter:description'] = self.description
         res['default_opengraph']['og:image'] = res['default_twitter']['twitter:image'] = "/web/image/slide.slide/%s/image_small" % (self.id)
+        res['default_meta_description'] = self.description
         return res