diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index f3f5c9f..2f1e030 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-CN">
   <head>
     <meta charset='utf-8' />
-    <title><%= yield :page_title -%>CARTO</title>
+    <title><%= yield :page_title -%>快点</title>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <%= stylesheet_link_tag 'common_new.css', :media => 'all' %>
     <%= yield :css -%>
diff --git a/app/views/layouts/application_builder.html.erb b/app/views/layouts/application_builder.html.erb
index 9e5b593..1713add 100644
--- a/app/views/layouts/application_builder.html.erb
+++ b/app/views/layouts/application_builder.html.erb
@@ -1,9 +1,9 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-CN">
   <head>
     <meta charset='utf-8' />
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <title><%= yield :page_title -%>CARTO</title>
+    <title><%= yield :page_title -%>快点</title>
     <%= favicon_link_tag "favicons/favicon.ico" -%>
     <%= stylesheet_link_tag 'common_editor3', 'editor3', 'deep_insights_new', :media => 'all' %>
     <%= csrf_meta_tag -%>
diff --git a/app/views/layouts/application_password_layout.html.erb b/app/views/layouts/application_password_layout.html.erb
index adc8589..b366d54 100644
--- a/app/views/layouts/application_password_layout.html.erb
+++ b/app/views/layouts/application_password_layout.html.erb
@@ -3,7 +3,7 @@
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
-    <title><%= yield :title %> | CARTO</title>
+    <title><%= yield :title %> | 快点</title>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <%= editor_stylesheet_link_tag 'password_protected.css' %>
     <%= insert_google_tag_manager('embeds') %>
diff --git a/app/views/layouts/application_public_visualization_layout.html.erb b/app/views/layouts/application_public_visualization_layout.html.erb
index 023016f..086ab5a 100644
--- a/app/views/layouts/application_public_visualization_layout.html.erb
+++ b/app/views/layouts/application_public_visualization_layout.html.erb
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh">
   <head>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <title><%= yield :title %></title>
@@ -10,26 +10,9 @@
     <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
 
     <meta property="og:title" content="<%= yield :title %>" />
-    <meta property="og:site_name" content="CARTO" />
     <meta property="og:description" content="<%= yield :description %>" />
     <meta property="og:type" content="article" />
     <meta property="og:url" content="<%= request.original_url %>" />
-    <meta property="og:image" content="<%= yield :facebook_card %>">
-    <% if Cartodb.get_config(:facebook, 'app_id') %>
-      <meta property="fb:app_id" content="<%= Cartodb.get_config(:facebook, 'app_id') %>" />
-    <% end %>
-    <% if Cartodb.get_config(:facebook, 'admins') %>
-      <meta property="fb:admins" content="<%= Cartodb.get_config(:facebook, 'admins') %>" />
-    <% end %>
-    <meta property="article:publisher" content="https://www.facebook.com/cartodb" />
-    <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:site" content="@CARTO">
-    <% unless @twitter_username.nil? %>
-      <meta name="twitter:creator" "@#{@twitter_username}">
-    <% end %>
-    <meta name="twitter:title" content="<%= yield :title %>">
-    <meta name="twitter:description" content="<%= yield :description %>">
-    <meta name="twitter:image" content="<%= yield :twitter_card %>">
 
     <%= yield :css %>
     <%= insert_google_tag_manager('embeds') %>
diff --git a/app/views/layouts/application_table_public.html.erb b/app/views/layouts/application_table_public.html.erb
index d8e85e0..361c175 100644
--- a/app/views/layouts/application_table_public.html.erb
+++ b/app/views/layouts/application_table_public.html.erb
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh">
   <head>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <title><%= yield :page_title %></title>
@@ -15,21 +15,6 @@
     <meta property="og:type" content="article" />
     <meta property="og:url" content="<%= request.original_url %>" />
     <meta property="og:image" content="<%= yield :facebook_card %>">
-    <% if Cartodb.get_config(:facebook, 'app_id') %>
-      <meta property="fb:app_id" content="<%= Cartodb.get_config(:facebook, 'app_id') %>" />
-    <% end %>
-    <% if Cartodb.get_config(:facebook, 'admins') %>
-      <meta property="fb:admins" content="<%= Cartodb.get_config(:facebook, 'admins') %>" />
-    <% end %>
-    <meta property="article:publisher" content="https://www.facebook.com/cartodb" />
-    <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:site" content="@CARTO">
-    <% unless @twitter_username.nil? %>
-      <meta name="twitter:creator" "@#{@twitter_username}" ">
-    <% end %>
-    <meta name="twitter:title" content="<%= yield :page_title %>">
-    <meta name="twitter:description" content="<%= yield :description %>">
-    <meta name="twitter:image" content="<%= yield :twitter_card %>">
 
     <%= yield :css %>
     <%= insert_google_tag_manager('embeds') %>
diff --git a/app/views/layouts/explore.html.erb b/app/views/layouts/explore.html.erb
index a261ffd..544277e 100644
--- a/app/views/layouts/explore.html.erb
+++ b/app/views/layouts/explore.html.erb
@@ -1,10 +1,9 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh">
   <head>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <title><%= yield :title %></title>
     <meta name="description" content="<%= yield :description %>">
-    <meta name="keywords" content="carto, maps, data visualization tools, big data, location intelligence, deep insights, datasets">
     <meta name="author" content="<%= @name %>">
     <meta charset='utf-8' />
     <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
diff --git a/app/views/layouts/front_layout.html.erb b/app/views/layouts/front_layout.html.erb
index 19ed56e..7697c22 100644
--- a/app/views/layouts/front_layout.html.erb
+++ b/app/views/layouts/front_layout.html.erb
@@ -2,7 +2,7 @@
 <!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
 <!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8" lang="en"> <![endif]-->
 <!--[if IE 8]> <html class="no-js lt-ie9" lang="en"> <![endif]-->
-<!--[if gt IE 8]><!--> <html class="no-js" lang="en"> <!--<![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="zh"> <!--<![endif]-->
 <html>
   <head>
     <meta charset="utf-8">
diff --git a/app/views/layouts/frontend.html.erb b/app/views/layouts/frontend.html.erb
index 4fc0730..0e6fec5 100644
--- a/app/views/layouts/frontend.html.erb
+++ b/app/views/layouts/frontend.html.erb
@@ -3,10 +3,9 @@
 <head>
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
-  <title><%= "#{yield(:title)} — " if content_for?(:title) %>CARTO</title>
+  <title><%= "#{yield(:title)} — " if content_for?(:title) %>快点</title>
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="description" content="<%= content_for?(:title) ? yield(:title) : "Create dynamic maps, analyze and build location-aware and geospatial applications with your data using the power of PostGIS in the cloud." %>">
-  <%= yield(:robots) if content_for?(:robots) %>
   <%= favicon_link_tag "favicons/favicon.ico" %>
   <%= stylesheet_link_tag "sessions" %>
   <%= yield :css %>
diff --git a/app/views/layouts/mail.html.erb b/app/views/layouts/mail.html.erb
index 663719d..883e4b2 100644
--- a/app/views/layouts/mail.html.erb
+++ b/app/views/layouts/mail.html.erb
@@ -1,4 +1,4 @@
-<html lang="en">
+<html lang="zh">
 <head>
   <title><%= @subject %></title>
   <!--
diff --git a/app/views/layouts/public_dashboard.html.erb b/app/views/layouts/public_dashboard.html.erb
index 446cec4..b9814a3 100644
--- a/app/views/layouts/public_dashboard.html.erb
+++ b/app/views/layouts/public_dashboard.html.erb
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-CN">
   <head>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <title><%= yield :title %></title>
@@ -15,13 +15,6 @@
     <meta property="og:url" content="<%= request.original_url %>" />
     <meta property="og:image" content="<%= @avatar_url %>" />
 
-    <meta name="twitter:card" content="summary">
-    <meta name="twitter:site" content="@CARTO">
-    <meta name="twitter:creator" content="@CARTO">
-    <meta name="twitter:title" content="<%= yield :title %>">
-    <meta name="twitter:description" content="<%= yield :description %>">
-    <meta name="twitter:image" content="<%= @avatar_url %>">
-    <meta name="twitter:url" content="<%= request.original_url %>" />
 
     <% if @has_new_dashboard %>
       <%= stylesheet_link_tag 'deep_insights_new', 'common_new', 'public_dashboard_new' %>
diff --git a/app/views/layouts/public_user_feed.html.erb b/app/views/layouts/public_user_feed.html.erb
index b502bf5..c1e6b6b 100644
--- a/app/views/layouts/public_user_feed.html.erb
+++ b/app/views/layouts/public_user_feed.html.erb
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="zh-CN">
   <head>
     <%= favicon_link_tag "favicons/favicon.ico" %>
     <title><%= yield :title %></title>
diff --git a/app/views/sessions/new.html.erb b/app/views/sessions/new.html.erb
index ce479d6..717baaa 100644
--- a/app/views/sessions/new.html.erb
+++ b/app/views/sessions/new.html.erb
@@ -1,9 +1,5 @@
 <% if @organization %>
   <% content_for :title do %><%= @organization.name %><% end %>
-
-  <% content_for :robots do %>
-    <meta name="robots" content="noindex">
-  <% end %>
 <% end %>
 
 <% content_for :js do %>
@@ -31,7 +27,7 @@
 
                 <% if @organization.nil? || @organization.auth_username_password_enabled %>
                   <div class="Sessions-field">
-                    <%= text_field_tag :email, CartoDB.extract_subdomain(request), :title => "Email or username", placeholder: "email or username", class: "CDB-Size-medium #{@organization.present? ? 'Sessions-input' : 'Sessions-navy-input'} topBorderRadius", autofocus: true %>
+                    <%= text_field_tag :email, CartoDB.extract_subdomain(request), :title => "Email or username", placeholder: "邮件地址或用户名", class: "CDB-Size-medium #{@organization.present? ? 'Sessions-input' : 'Sessions-navy-input'} topBorderRadius", autofocus: true %>
 
                     <% if @login_error %>
                       <div class="Sessions-fieldError js-Sessions-fieldError" data-content="<%= @login_error %>">!</div>
@@ -39,21 +35,21 @@
                   </div>
 
                   <div class="Sessions-field">
-                    <%= password_field_tag :password, "", autocomplete: "off", placeholder: "password", class: "CDB-Size-medium #{@organization.present? ? 'Sessions-input' : 'Sessions-navy-input'} bottomBorderRadius" %>
+                    <%= password_field_tag :password, "", placeholder: "密码", class: "CDB-Size-medium #{@organization.present? ? 'Sessions-input' : 'Sessions-navy-input'} bottomBorderRadius" %>
 
                     <% if @login_error %>
                       <div class="Sessions-fieldError js-Sessions-fieldError" data-content="<%= @login_error %>">!</div>
                     <% end %>
 
                     <div class="Sessions-inputLinkAside">
-                      <%= link_to 'Forgot?', forget_password_url(organization_name: @organization.try(:name)) %>
+                      <%= link_to '忘记密码?', forget_password_url(organization_name: @organization.try(:name)) %>
                     </div>
                   </div>
 
                   <div class="Sessions-field">
                     <p>
                       <button type="submit" class="Sessions-submitButton js-Sessions-button js-Loading">
-                        <span class="js-Loading-text">Log in</span>
+                        <span class="js-Loading-text">登录</span>
                         <%= render :partial => 'shared/loading_animation' %>
                       </button>
                     </p>
diff --git a/app/views/shared/_public_dashboard_user_header.html.erb b/app/views/shared/_public_dashboard_user_header.html.erb
index cf53db5..02355ec 100644
--- a/app/views/shared/_public_dashboard_user_header.html.erb
+++ b/app/views/shared/_public_dashboard_user_header.html.erb
@@ -24,7 +24,7 @@
                 <% if @maps_count > 0 %>
                   <%= pluralize(@maps_count, "Map") %>
                 <% else %>
-                  Maps
+                  地图
                 <% end %>
               </a>
             </li>
@@ -33,7 +33,7 @@
                 <% if @tables_num > 0 %>
                   <%= pluralize(@tables_num, "Dataset") %>
                 <% else %>
-                  Datasets
+                  数据
                 <% end %>
               </a>
             </li>
