HTML meta tags cheatsheet

HTML meta tags cheatsheet

1. Meta Charset: Specifies the character encoding for the HTML document.

   html
    
   <meta charset="UTF-8">
   

2. Meta Viewport: Controls the layout on mobile browsers by setting the viewport width and scale.

   html
    
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   

3. Meta Description: Provides a brief summary of the page content for search engines.

   html
    
   <meta name="description" content="Description of the webpage">
   

4. Meta Keywords (Deprecated): Used to specify keywords relevant to the page content (now largely ignored by search engines).

   html
    
   <meta name="keywords" content="keyword1, keyword2, keyword3">
   

5. Meta Robots: Controls how search engines index and display the page.

   html
    
   <meta name="robots" content="index, follow">
   

6. Meta Author: Specifies the author of the webpage.

   html
    
   <meta name="author" content="Author Name">
   

7. Meta Refresh: Redirects the browser to another URL after a specified time interval.

   html
    
   <meta http-equiv="refresh" content="5;url=https://example.com">
   

8. Meta Open Graph (for social media): Specifies metadata for social media platforms like Facebook.

   html
    
   <meta property="og:title" content="Title of the content">
   <meta property="og:description" content="Description of the content">
   <meta property="og:image" content="https://example.com/image.jpg">
   <meta property="og:url" content="https://example.com/page">
   

9. Meta Twitter Card (for Twitter): Specifies metadata for Twitter cards.

   html
    
   <meta name="twitter:card" content="summary">
   <meta name="twitter:site" content="@username">
   <meta name="twitter:title" content="Title of the content">
   <meta name="twitter:description" content="Description of the content">
   <meta name="twitter:image" content="https://example.com/image.jpg">
   

10. Meta Apple Mobile Web App Capable: Specifies whether the website can be run in full-screen mode on an Apple device.

    html
     
    <meta name="apple-mobile-web-app-capable" content="yes">
    

These are some of the most commonly used HTML meta tags that can enhance the functionality, visibility, and usability of your web pages across different platforms and devices.

from
https://intitute.blogspot.com/2018/10/html-meta-tags-cheatsheet.html

Meta tags

<meta charset='utf-8'>
<!-- title -->
<title>···</title>
<meta property='og:title'  content='···'>
<meta name='twitter:title' content='···'>

<!-- url -->
<link rel='canonical'       href='http://···'>
<meta property='og:url'  content='http://···'>
<meta name='twitter:url' content='http://···'>

<!-- description -->
<meta name='description'         content='···'>
<meta property='og:description'  content='···'>
<meta name='twitter:description' content='···'>

<!-- image -->
<meta property="og:image"  content="http://···">
<meta name="twitter:image" content="http://···">
<!-- ua -->
<meta http-equiv='X-UA-Compatible' content='IE=edge,chrome=1'>
<!-- viewport -->
<meta name='viewport' content='width=device-width'>
<meta name='viewport' content='width=1024'>

Progressive web apps

Add to homescreen

<meta name='mobile-web-app-capable' content='yes'>
<meta name='apple-mobile-web-app-capable' content='yes'>
<meta name='apple-mobile-web-app-status-bar-style' content='black'>
<!-- black | black-translucent | default -->

Theme color

<meta name='theme-color' content='#ff00ff'>

Android-only.

Manifest

<link rel='manifest' href='/manifest.json'>
Android-only. S

Icons

<!-- Minimal -->
<link rel='icon' type='image/png' href='favicon@32.png'>
<link rel='icon' sizes='192x192' href='icon@192.png'>
<link rel='apple-touch-icon' href='icon@152.png'>
<meta name='msapplication-square310x310logo' content='icon@310.png'>
<!-- Apple -->
<link rel='apple-touch-icon' href='touch-icon-iphone.png'>
<link rel='apple-touch-icon' sizes='76x76' href='touch-icon-ipad.png'>
<link rel='apple-touch-icon' sizes='120x120' href='touch-icon-iphone-retina.png'>
<link rel='apple-touch-icon' sizes='152x152' href='touch-icon-ipad-retina.png'>
<!-- Microsoft -->
<meta name='msapplication-square70x70logo' content='icon_smalltile.png'>
<meta name='msapplication-square150x150logo' content='icon_mediumtile.png'>
<meta name='msapplication-wide310x150logo' content='icon_widetile.png'>

Chrome on Android recommends 192x192.

More opengraph

<meta property='og:site_name' content='···'>
<meta property='og:type' content='website'>
<meta property='fb:app_id' content='···'>
<meta property='fb:admins' content='UID1,UID2'>
<!-- ···unless there's app_id -->
<meta property='og:audio' content='http://···/theme.mp3'>
<meta property='og:video' content='http://···/trailer.swf'>

Apple-only

<meta name='format-detection' content='telephone=no'>

Tags🏷
Div Section

<div>Block element</div>

Headings

<h1>Page title</h1>
<h2>Subheading</h2>
<h3>Tertiary heading</h3>
<h4>Quaternary heading</h4>

Paragraph

<p style="text-align: center;">text</p>

Image

<img src="/demo.jpg" alt="description" height="48" width="100" />

Outbound Link
Get your online assignment help at Copycrafter professional writing service.

<a href="https://htmlg.com/" target="_blank" rel="nofollow">Click here</a>

Mailto link

<a href="mailto:me@ruwix.com?Subject=Hi%20mate" target="_top">Send Mail</a>

Inner anchor (jump on page)

<a href="#footer">Jump to footnote</a>
<br />
<a name="footer"></a>Footnote content

Bold text

<strong>Bold text</strong>

Italic text

<em>Italic text</em>

Underlined text

<span style="text-decoration: underline;">Underlined text</span>

Iframe

<iframe src="link.html" width="200" height="200">
</iframe> 

Abbreviation

<abbr title="Hypertext Markup Language">HTML</abbr>

Comment
<!-- HTML
Comment -->
Horizontal Line

<hr />

Line break

<br />

Quotation

<q>Success is a journey not a destination.</q>
<blockquote cite="https://ruwix.com/">

The Rubik's Cube is the World’s best selling puzzle toy.

</blockquote> 

Video

<video width="200" height="150" controls>
<source src="vid.mp4" type="video/mp4">
<source src="vid.ogg" type="video/ogg">

No video support.

</video>

Audio
 <audio controls>

    <source src="sound.ogg" type="audio/ogg">
    <source src="sound.mp3" type="audio/mpeg">

    No audio support.

</audio> 

Table

<table><caption>Phone numbers</caption>
    <thead>
        <tr>
            <th>Name</th>
            <th colspan="2">Phone</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>John</td>
            <td>577854</td>
            <td>577855</td>
        </tr>
        <tr>
            <td>Jack</td>
            <td>577856</td>
            <td>577857</td>
        </tr>
    </tbody>
    <tfoot>
        <tr>
            <td>&nbsp;</td>
            <td>Personal</td>
            <td>Office</td>
        </tr>
    </tfoot>
</table>

Unordered list

<ul>
  <li>First</li>
  <li>Second</li>
  <li>Third</li>
</ul>

Definition list

<dl>
  <dt>HTML</dt>
  <dd>Hypertext Markup Language</dd>
  <dt>CSS</dt>
  <dd>Cascading Style Sheets </dd>
</dl>

Form

<form action="/action.php" method="post">

    Name: <input name="name" type="text" /> <br />
    Age: <input max="99" min="1" name="age" step="1" type="number" value="18" /> <br />
    <select name="gender">
        <option selected="selected" value="male">Male</option>
        <option value="female">Female</option>
    </select><br />
    <input checked="checked" name="newsletter" type="radio" value="daily" /> Daily <input name="newsletter" type="radio" value="weekly" /> Weekly<br />
    <textarea cols="20" name="comments" rows="5">Comment</textarea><br />
    <label><input name="terms" type="checkbox" value="tandc" />Accept terms</label> <br />
    <input type="submit" value="Submit" />
</form>

?↖xAttributes💅
SYNTAX

<tag attributename="value" />

- lowecase attributes, quote values
Global attributes
accesskey, class, contenteditable, data-*, dir, draggable, hidden, id, lang, spellcheck, style, tabindex, title

<div id="demo" class="big" dir="ltr" lang="en"
style="color: red;" tabindex="0" title="Tooltip"
contenteditable="true" spellcheck="true"
data-htmlcheat="99">Hello World!</div>
Internationalization: dir, lang, xml:lang
<html lang="en-US">

...

     <p dir="rtl">Right to left (Arabic)</p> 

...
</html>

Link: download, href, hreflang, media, rel, target, type

<a href="https://htmlg.com/" target="_blank" rel="external" hreflang="en" type="text/html">

    Link

</a>

Image: src, alt, height, ismap, longdesc, src, srcset, usemap, width

<img src="/demo.jpg" alt="description"
height="48" width="100" longdesc="desc.txt" />

Lorem ipsum Cupcake ipsum Random English Chinese Spanish
?↖xCreate iframe🖼
URL:
https://
Width:
100
  Height:
100

 
Scrolling: Border: Generate iframe

?↖xCreate Table▦
Cols:
3
Rows:
3
Border:
0
Border Collapse:
Width:
0
  Cellpadding:
0
Generate table Div Tables
?↖xCreate Link🔗
URL:
https://
Text:
Title:
Target: Generate link
?↖xCreate Image📸
Source:
https://
Description:
Style:
Width:
  Height: 

 
Float: Generate image
?↖xCreate List📜
List type:
Unordered: Ordered: Generate list
?↖xBlank Page💭

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Page Title</title>
    <meta name="description" content="Roughly 155 characters">
    <link rel="stylesheet" type="text/css" href="mystyle.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
    <script src="script.js"></script>
  </head>
  <body>
    <!-- Content -->
  </body>
</html>
Download Package

?↖x.htaccess⚙

Force HTTPS
RewriteEngine on
RewriteCond %{HTTPS}!on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
Force www
RewriteEngine on
RewriteCond %{HTTP_HOST}^htmlg\.com [NC]
RewriteRule ^(.*)$ http://www.htmlg.com/$1 [L,R=301,NC]
Force non-www
RewriteEngine on
RewriteCond %{HTTP_HOST}^www\.htmlg\.com [NC]
RewriteRule ^(.*)$ http://htmlg.com/$1 [L,R=301]
Custom Error Pages
ErrorDocument 500 "Sorry, something went wrong!"
ErrorDocument 401 https://htmlg.com/404/
ErrorDocument 404 404error.html
Redirect Entire Site
Redirect 301 / https://htmlg.com/
Permanent Page Redirect
Redirect 301 /oldlink.html https://htmlg.com/help/
Redirect 301 /oldlink https://htmlg.com/about/
Alias Directory
RewriteEngine On
RewriteRule ^source_directory/(.*) target_directory/$1
Remove .php Extension
RewriteEngine On
RewriteCond %{SCRIPT_FILENAME}!-d
RewriteRule ^([^.]+)$ $1.php [NC,L]
Block IP Address
Order deny,allow
Allow from all
Deny from 123.123.123.123
Deny from 123.123.123.123
Allow Access From Only One IP
# Require all denied
# Require ip 123.123.123.123

?↖xRobots.txt🤖
Example

User-agent: *
Disallow: /dont-index-this-folder/
Sitemap: https://htmlcheatsheet.com/sitemap.xml
Ban all robots
User-agent: *
Disallow: /

?↖xHead Tags👦

<!doctype html>
<html lang="en" class="no-js">
<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="canonical" href="https://htmlcheatsheet.com/" />
    <title>HTML CheatSheet</title>
    <meta name="description" content="A brief page description">
    <meta name="keywords" content="html,cheatsheet" />
    <meta property="fb:admins" content="YourFacebookUsername" />
    <meta property="og:title" content="HTML CheatSheet" />
    <meta property="og:type" content="website" />
    <meta property="og:url" content="https://htmlcheatsheet.com/" />
    <meta property="og:image" content="https://htmlcheatsheet.com/images/html-cheatsheet.jpg" />
    <meta property="og:description" content="A brief page description" />
    <link rel="apple-touch-icon" href="apple-touch-icon.png">
    <link rel="alternate" hreflang="es" href="https://htmlcheatsheet.com/spanish/" />
    <link rel="stylesheet" href="/styles.css">
    <script src="/script.js"></script>
</head>

?↖xHTML5 Page Structure⚗
header, nav, main, article, section, aside, footer, address

<header>
    <div id="logo">HTML</div>
    <nav> 
        <ul>
            <li><a href="/">Home</a>
            <li><a href="/link">Page</a>
        </ul>
    </nav>
</header>
<main role="main">
    <article>
        <h2>Title 1</h2>
        <p>Content 1</p>
    </article>
    <article>
        <h2>Title 2</h2>
        <p>Content 2</p>
    </article>
</main>
<section>
    A group of related content
</section>
<aside>
    Sidebar
</aside>
<footer>
    <p>&copy; HTML CheatSheet</p>
    <address>
        Contact <a href="mailto:me@htmlg.com">me</a>
    </address>
</footer>

?↖xOpen Graph📉

<!doctype html>
<html xmlns:og="http://ogp.me/ns#">
<head>
<title>The Rock (1996)</title>
<meta property="og:title" content="Cheat Sheet" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://htmlcheatsheet.com/" />
<meta property="og:image" content="https://htmlcheatsheet.com/demo.jpg" />
Optional
<meta property="og:audio" content="https://htmlcheatsheet.com/track.mp3" />
<meta property="og:description" content="A brief description" />
<meta property="og:determiner" content="the" />
<meta property="og:locale" content="en_US" />
<meta property="og:locale:alternate" content="es_ES" />
<meta property="og:site_name" content="HTML CheatSheet" />
<meta property="og:video" content="https://htmlcheatsheet.com/video.swf />

Below are the essential elements for any web document (websites/apps):

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!--
  The above 2 meta tags *must* come first in the <head>
  to consistently ensure proper document rendering.
  Any other head element should come *after* these tags.
 -->
<title>Page Title</title>

⬆ back to top

Elements
Valid <head> elements include meta, link, title, style, script, noscript, and base.

These elements provide information for how a document should be perceived, and rendered, by web technologies. e.g. browsers, search engines, bots, etc.

<!--
  Set the character encoding for this document, so that
  all characters within the UTF-8 space (such as emoji)
  are rendered correctly.
-->
<meta charset="utf-8">
<!-- Set the document's title -->
<title>Page Title</title>
<!-- Set the base URL for all relative URLs within the document -->
<base href="https://example.com/page.html">
<!-- Link to an external CSS file -->
<link rel="stylesheet" href="styles.css">
<!-- Used for adding in-document CSS -->
<style>
  /* ... */
</style>
<!-- JavaScript & No-JavaScript tags -->
<script src="script.js"></script>
<script>
  // function(s) go here
</script>
<noscript>
  <!-- No JS alternative -->
</noscript>

⬆ back to top

Meta
<!--
  The following 2 meta tags *must* come first in the <head>
  to consistently ensure proper document rendering.
  Any other head element should come *after* these tags.
-->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!--
  Allows control over where resources are loaded from.
  Place as early in the <head> as possible, as the tag 
  only applies to resources that are declared after it.
-->
<meta http-equiv="Content-Security-Policy" content="default-src 'self'">
<!-- Name of web application (only should be used if the website is used as an app) -->
<meta name="application-name" content="Application Name">
<!-- Theme Color for Chrome, Firefox OS and Opera -->
<meta name="theme-color" content="#4285f4">
<!-- Short description of the document (limit to 150 characters) -->
<!-- This content *may* be used as a part of search engine results. -->
<meta name="description" content="A description of the page">
<!-- Control the behavior of search engine crawling and indexing -->
<meta name="robots" content="index,follow"><!-- All Search Engines -->
<meta name="googlebot" content="index,follow"><!-- Google Specific -->
<!-- Tells Google not to show the sitelinks search box -->
<meta name="google" content="nositelinkssearchbox">
<!-- Tells Google not to provide a translation for this document -->
<meta name="google" content="notranslate">

<!-- Verify website ownership -->
<meta name="google-site-verification" content="verification_token"><!-- Google Search Console -->
<meta name="yandex-verification" content="verification_token"><!-- Yandex Webmasters -->
<meta name="msvalidate.01" content="verification_token"><!-- Bing Webmaster Center -->
<meta name="alexaVerifyID" content="verification_token"><!-- Alexa Console -->
<meta name="p:domain_verify" content="code_from_pinterest"><!-- Pinterest Console-->
<meta name="norton-safeweb-site-verification" content="norton_code"><!-- Norton Safe Web -->

<!-- Identify the software used to build the document (i.e. - WordPress, Dreamweaver) -->
<meta name="generator" content="program">
<!-- Short description of your document's subject -->
<meta name="subject" content="your document's subject">
<!-- Gives a general age rating based on the document's content -->
<meta name="rating" content="General">
<!-- Allows control over how referrer information is passed -->
<meta name="referrer" content="no-referrer">
<!-- Disable automatic detection and formatting of possible phone numbers -->
<meta name="format-detection" content="telephone=no">
<!-- Completely opt out of DNS prefetching by setting to "off" -->
<meta http-equiv="x-dns-prefetch-control" content="off">
<!-- Specifies the document to appear in a specific frame -->
<meta http-equiv="Window-Target" content="_value">
<!-- Geo tags -->
<meta name="ICBM" content="latitude, longitude">
<meta name="geo.position" content="latitude;longitude">
<meta name="geo.region" content="country[-state]"><!-- Country code (ISO 3166-1): mandatory, state code (ISO 3166-2): optional; eg. content="US" / content="US-NY" -->
<meta name="geo.placename" content="city/town"><!-- eg. content="New York City" -->

⬆ back to top

Link

<!-- Points to an external stylesheet -->
<link rel="stylesheet" href="https://example.com/styles.css">
<!-- Helps prevent duplicate content issues -->
<link rel="canonical" href="https://example.com/article/?page=2">
<!-- Links to an AMP HTML version of the current document -->
<link rel="amphtml" href="https://example.com/path/to/amp-version.html">
<!-- Links to a JSON file that specifies "installation" credentials for the web applications -->
<link rel="manifest" href="manifest.json">
<!-- Links to information about the author(s) of the document -->
<link rel="author" href="humans.txt">
<!-- Refers to a copyright statement that applies to the link's context -->
<link rel="license" href="copyright.html">
<!-- Gives a reference to a location in your document that may be in another language -->
<link rel="alternate" href="https://es.example.com/" hreflang="es">
<!-- Provides information about an author or another person -->
<link rel="me" href="https://google.com/profiles/thenextweb" type="text/html">
<link rel="me" href="mailto:name@example.com">
<link rel="me" href="sms:+15035550125">
<!-- Links to a document that describes a collection of records, documents, or other materials of historical interest -->
<link rel="archives" href="https://example.com/archives/">
<!-- Links to top level resource in an hierarchical structure -->
<link rel="index" href="https://example.com/article/">
<!-- Provides a self reference - useful when the document has multiple possible references -->
<link rel="self" type="application/atom+xml" href="https://example.com/atom.xml">
<!-- The first, last, previous, and next documents in a series of documents, respectively -->
<link rel="first" href="https://example.com/article/">
<link rel="last" href="https://example.com/article/?page=42">
<link rel="prev" href="https://example.com/article/?page=1">
<link rel="next" href="https://example.com/article/?page=3">
<!-- Used when a 3rd party service is utilized to maintain a blog -->
<link rel="EditURI" href="https://example.com/xmlrpc.php?rsd" type="application/rsd+xml" title="RSD">
<!-- Forms an automated comment when another WordPress blog links to your WordPress blog or post -->
<link rel="pingback" href="https://example.com/xmlrpc.php">
<!-- Notifies a URL when you link to it on your document -->
<link rel="webmention" href="https://example.com/webmention">
<!-- Enables posting to your own domain using a Micropub client -->
<link rel="micropub" href="https://example.com/micropub">
<!-- Open Search -->
<link rel="search" href="/open-search.xml" type="application/opensearchdescription+xml" title="Search Title">
<!-- Feeds -->
<link rel="alternate" href="https://feeds.feedburner.com/example" type="application/rss+xml" title="RSS">
<link rel="alternate" href="https://example.com/feed.atom" type="application/atom+xml" title="Atom 0.3">
<!-- Prefetching, preloading, prebrowsing -->
<!-- More info: https://css-tricks.com/prefetching-preloading-prebrowsing/ -->
<link rel="dns-prefetch" href="//example.com/">
<link rel="preconnect" href="https://www.example.com/">
<link rel="prefetch" href="https://www.example.com/">
<link rel="prerender" href="https://example.com/">
<link rel="preload" href="image.png" as="image">

Icons

<!-- For IE 10 and below -->
<!-- Place favicon.ico in the root directory - no tag necessary -->
<!-- Icon in the highest resolution we need it for -->
<link rel="icon" sizes="192x192" href="/path/to/icon.png">
<!-- Apple Touch Icon (reuse 192px icon.png) -->
<link rel="apple-touch-icon" href="/path/to/apple-touch-icon.png">
<!-- Safari Pinned Tab Icon -->
<link rel="mask-icon" href="/path/to/icon.svg" color="blue">

Social
Facebook Open Graph

<meta property="fb:app_id" content="123456789">
<meta property="og:url" content="https://example.com/page.html">
<meta property="og:type" content="website">
<meta property="og:title" content="Content Title">
<meta property="og:image" content="https://example.com/image.jpg">
<meta property="og:image:alt" content="A description of what is in the image (not a caption)">
<meta property="og:description" content="Description Here">
<meta property="og:site_name" content="Site Name">
<meta property="og:locale" content="en_US">
<meta property="article:author" content="">

🛠 Test your page with the Facebook Sharing Debugger
Twitter Card

<meta name="twitter:card" content="summary">
<meta name="twitter:site" content="@site_account">
<meta name="twitter:creator" content="@individual_account">
<meta name="twitter:url" content="https://example.com/page.html">
<meta name="twitter:title" content="Content Title">
<meta name="twitter:description" content="Content description less than 200 characters">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:image:alt" content="A text description of the image conveying the essential nature of an image to users who are visually impaired. Maximum 420 characters.">

Twitter Privacy
If you embed tweets in your website, Twitter can use information from your site to tailor content and suggestions to Twitter users. More about Twitter privacy options.

<!-- disallow Twitter from using your site's info for personalization purposes -->
<meta name="twitter:dnt" content="on">

Schema.org

<html lang="" itemscope itemtype="https://schema.org/Article">
    <head>
      <link rel="author" href="">
      <link rel="publisher" href="">
      <meta itemprop="name" content="Content Title">
      <meta itemprop="description" content="Content description less than 200 characters">
      <meta itemprop="image" content="https://example.com/image.jpg">

Note: These meta tags require the itemscope and itemtype attributes to be added to the <html> tag.

🛠 Test your page with the Structured Data Testing Tool
Pinterest
Pinterest lets you prevent people from saving things from your website, according to their help center. The description is optional.

<meta name="pinterest" content="nopin" description="Sorry, you can't save from my website!">
Facebook Instant Articles
<meta charset="utf-8">
<meta property="op:markup_version" content="v1.0">

<!-- The URL of the web version of your article -->
<link rel="canonical" href="https://example.com/article.html">

<!-- The style to be used for this article -->
<meta property="fb:article_style" content="myarticlestyle">

OEmbed

<link rel="alternate" type="application/json+oembed"
  href="https://example.com/services/oembed?url=http%3A%2F%2Fexample.com%2Ffoo%2F&amp;format=json"
  title="oEmbed Profile: JSON">
<link rel="alternate" type="text/xml+oembed"
  href="https://example.com/services/oembed?url=http%3A%2F%2Fexample.com%2Ffoo%2F&amp;format=xml"
  title="oEmbed Profile: XML">

Browsers / Platforms
Apple iOS

<!-- Smart App Banner -->
<meta name="apple-itunes-app" content="app-id=APP_ID,affiliate-data=AFFILIATE_ID,app-argument=SOME_TEXT">
<!-- Disable automatic detection and formatting of possible phone numbers -->
<meta name="format-detection" content="telephone=no">
<!-- Launch Icon (180x180px or larger) -->
<link rel="apple-touch-icon" href="/path/to/apple-touch-icon.png">
<!-- Launch Screen Image -->
<link rel="apple-touch-startup-image" href="/path/to/launch.png">
<!-- Launch Icon Title -->
<meta name="apple-mobile-web-app-title" content="App Title">
<!-- Enable standalone (full-screen) mode -->
<meta name="apple-mobile-web-app-capable" content="yes">
<!-- Status bar appearance (has no effect unless standalone mode is enabled) -->
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<!-- iOS app deep linking -->
<meta name="apple-itunes-app" content="app-id=APP-ID, app-argument=http/url-sample.com">
<link rel="alternate" href="ios-app://APP-ID/http/url-sample.com">

Google Android

<meta name="theme-color" content="#E64545">
<!-- Add to home screen -->
<meta name="mobile-web-app-capable" content="yes">
<!-- More info: https://developer.chrome.com/multidevice/android/installtohomescreen -->
<!-- Android app deep linking -->
<meta name="google-play-app" content="app-id=package-name">
<link rel="alternate" href="android-app://package-name/http/url-sample.com">
Google Chrome
<link rel="chrome-webstore-item" href="https://chrome.google.com/webstore/detail/APP_ID">
<!-- Disable translation prompt -->
<meta name="google" content="notranslate">

Microsoft Internet Explorer

<!-- Force IE 8/9/10 to use its latest rendering engine -->
<meta http-equiv="x-ua-compatible" content="ie=edge">
<!-- Disable automatic detection and formatting of possible phone numbers by Skype Toolbar browser extension -->
<meta name="skype_toolbar" content="skype_toolbar_parser_compatible">
<!-- Windows Tiles -->
<meta name="msapplication-config" content="/browserconfig.xml">

Minimum required xml markup for browserconfig.xml:

<?xml version="1.0" encoding="utf-8"?>
<browserconfig>
   <msapplication>
     <tile>
        <square70x70logo src="small.png"/>
        <square150x150logo src="medium.png"/>
        <wide310x150logo src="wide.png"/>
        <square310x310logo src="large.png"/>
     </tile>
   </msapplication>
</browserconfig>

Browsers (Chinese)
360 Browser

<!-- Select rendering engine order -->
<meta name="renderer" content="webkit|ie-comp|ie-stand">

QQ Mobile Browser

<!-- Locks the screen into the specified orientation -->
<meta name="x5-orientation" content="landscape/portrait">

<!-- Display this document in fullscreen -->
<meta name="x5-fullscreen" content="true">
<!-- Document will be displayed in "application mode" (fullscreen, etc.) -->
<meta name="x5-page-mode" content="app">
UC Mobile Browser
<!-- Locks the screen into the specified orientation -->
<meta name="screen-orientation" content="landscape/portrait">
<!-- Display this document in fullscreen -->
<meta name="full-screen" content="yes">
<!-- UC browser will display images even if in "text mode" -->
<meta name="imagemode" content="force">
<!-- Document will be displayed in "application mode"(fullscreen, forbidding gesture, etc.) -->
<meta name="browsermode" content="application">
<!-- Disabled the UC browser's "night mode" for this document -->
<meta name="nightmode" content="disable">
<!-- Simplify the document to reduce data transfer -->
<meta name="layoutmode" content="fitscreen">
<!-- Disable the UC browser's feature of "scaling font up when there are many words in this document" -->
<meta name="wap-font-scale" content="no">

App Links

<!-- iOS -->
<meta property="al:ios:url" content="applinks://docs">
<meta property="al:ios:app_store_id" content="12345">
<meta property="al:ios:app_name" content="App Links">
<!-- Android -->
<meta property="al:android:url" content="applinks://docs">
<meta property="al:android:app_name" content="App Links">
<meta property="al:android:package" content="org.applinks">
<!-- Web fall back -->
<meta property="al:web:url" content="https://applinks.org/documentation">