Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/
<meta charset='UTF-8'>
<meta name='keywords' content='your, tags'>
<meta name='description' content='150 words'>
<meta name='subject' content='your website's subject'>
<meta name='copyright' content='company name'>
<meta name='language' content='ES'>
<meta name='robots' content='index,follow'>
<meta name='revised' content='Sunday, July 18th, 2010, 5:15 pm'>
<meta name='abstract' content=''>
<meta name='topic' content=''>
<meta name='summary' content=''>
<meta name='Classification' content='Business'>
<meta name='author' content='name, [email protected]'>
<meta name='designer' content=''>
<meta name='reply-to' content='[email protected]'>
<meta name='owner' content=''>
<meta name='url' content='http://www.websiteaddrress.com'>
<meta name='identifier-URL' content='http://www.websiteaddress.com'>
<meta name='directory' content='submission'>
<meta name='pagename' content='jQuery Tools, Tutorials and Resources - O'Reilly Media'>
<meta name='category' content=''>
<meta name='coverage' content='Worldwide'>
<meta name='distribution' content='Global'>
<meta name='rating' content='General'>
<meta name='revisit-after' content='7 days'>
<meta name='subtitle' content='This is my subtitle'>
<meta name='target' content='all'>
<meta name='HandheldFriendly' content='True'>
<meta name='MobileOptimized' content='320'>
<meta name='date' content='Sep. 27, 2010'>
<meta name='search_date' content='2010-09-27'>
<meta name='DC.title' content='Unstoppable Robot Ninja'>
<meta name='ResourceLoaderDynamicStyles' content=''>
<meta name='medium' content='blog'>
<meta name='syndication-source' content='https://mashable.com/2008/12/24/free-brand-monitoring-tools/'>
<meta name='original-source' content='https://mashable.com/2008/12/24/free-brand-monitoring-tools/'>
<meta name='verify-v1' content='dV1r/ZJJdDEI++fKJ6iDEl6o+TMNtSu0kv18ONeqM0I='>
<meta name='y_key' content='1e39c508e0d87750'>
<meta name='pageKey' content='guest-home'>
<meta itemprop='name' content='jQTouch'>
<meta http-equiv='Expires' content='0'>
<meta http-equiv='Pragma' content='no-cache'>
<meta http-equiv='Cache-Control' content='no-cache'>
<meta http-equiv='imagetoolbar' content='no'>
<meta http-equiv='x-dns-prefetch-control' content='off'>
<meta name='og:title' content='The Rock'>
<meta name='og:type' content='movie'>
<meta name='og:url' content='http://www.imdb.com/title/tt0117500/'>
<meta name='og:image' content='http://ia.media-imdb.com/rock.jpg'>
<meta name='og:site_name' content='IMDb'>
<meta name='og:description' content='A group of U.S. Marines, under command of...'>
<meta name='fb:page_id' content='43929265776'>
<meta name='application-name' content='foursquare'>
<meta name='og:email' content='[email protected]'>
<meta name='og:phone_number' content='650-123-4567'>
<meta name='og:fax_number' content='+1-415-123-4567'>
<meta name='og:latitude' content='37.416343'>
<meta name='og:longitude' content='-122.153013'>
<meta name='og:street-address' content='1601 S California Ave'>
<meta name='og:locality' content='Palo Alto'>
<meta name='og:region' content='CA'>
<meta name='og:postal-code' content='94304'>
<meta name='og:country-name' content='USA'>
<meta property='fb:admins' content='987654321'>
<meta property='og:type' content='game.achievement'>
<meta property='og:points' content='POINTS_FOR_ACHIEVEMENT'>
<meta property='og:video' content='http://example.com/awesome.swf'>
<meta property='og:video:height' content='640'>
<meta property='og:video:width' content='385'>
<meta property='og:video:type' content='application/x-shockwave-flash'>
<meta property='og:video' content='http://example.com/html5.mp4'>
<meta property='og:video:type' content='video/mp4'>
<meta property='og:video' content='http://example.com/fallback.vid'>
<meta property='og:video:type' content='text/html'>
<meta property='og:audio' content='http://example.com/amazing.mp3'>
<meta property='og:audio:title' content='Amazing Song'>
<meta property='og:audio:artist' content='Amazing Band'>
<meta property='og:audio:album' content='Amazing Album'>
<meta property='og:audio:type' content='application/mp3'>
Use custom meta tags to store data that you need in Javascript, instead of hard-coding that data into your Javascript. I store my Google Analytics code in meta tags. Here's some examples:
<meta name='google-analytics' content='1-AHFKALJ'>
<meta name='disqus' content='abcdefg'>
<meta name='uservoice' content='asdfasdf'>
<meta name='mixpanel' content='asdfasdf'>
<meta name='microid' content='mailto+http:sha1:e6058ed7fca4a1921cq91d7f1f3b8736cd3cc1g7'>
<meta name='readability-verification' content='E7aEHvVQpWc8VHDqKvaB2Z58hek2EAv2HuLuegv7'>
<meta name='google-site-verification' content='4SMIedO1X4IkYrYuhEC2VuovdQM36Xxb0btUjElqQyg'>
<meta name='ICBM' content='40.746990, -73.980537'>
<meta name='generator' content='WordPress 3.3.1'>
<meta name='norton-safeweb-site-verification' content='tz8iotmk-pkhui406y41y5bfmfxdwmaa4a-yc0hm6r0fga7s6j0j27qmgqkmc7oovihzghbzhbdjk-uiyrz438nxsjdbj3fggwgl8oq2nf4ko8gi7j4z7t78kegbidl4'>
<meta name="apple-mobile-web-app-title" content="My App"> <!-- New in iOS6 -->
<meta name='apple-mobile-web-app-capable' content='yes'>
<meta name='apple-touch-fullscreen' content='yes'>
<meta name='apple-mobile-web-app-status-bar-style' content='black'>
<meta name='format-detection' content='telephone=no'>
<meta name='viewport' content='width=device-width; content='width = 320; initial-scale=1.0; maximum-scale=1.0; user-scalable=yes; target-densitydpi=160dpi'>
<link href='/apple-touch-icon.png' rel='apple-touch-icon' type='image/png'>
<link href='touch-icon-ipad.png' rel='apple-touch-icon' sizes='72x72'>
<link href='touch-icon-iphone4.png' rel='apple-touch-icon' sizes='114x114'>
<link href='/startup.png' rel='apple-touch-startup-image'>
<link href='http://github.com/images/touch-icon-iphone4.png' sizes='114x114' rel='apple-touch-icon-precomposed'>
<link href='http://github.com/images/touch-icon-ipad.png' sizes='72x72' rel='apple-touch-icon-precomposed'>
<link href='http://github.com/images/apple-touch-icon-57x57.png' sizes='57x57' rel='apple-touch-icon-precomposed'>
<meta http-equiv='Page-Enter' content='RevealTrans(Duration=2.0,Transition=2)'>
<meta http-equiv='Page-Exit' content='RevealTrans(Duration=3.0,Transition=12)'>
<meta name='mssmarttagspreventparsing' content='true'>
<meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/>
<meta name='msapplication-starturl' content='http://blog.reybango.com/about/'>
<meta name='msapplication-window' content='width=800;height=600'>
<meta name='msapplication-navbutton-color' content='red'>
<meta name='application-name' content='Rey Bango Front-end Developer'>
<meta name='msapplication-tooltip' content='Launch Rey Bango's Blog'>
<meta name='msapplication-task' content='name=About;action-uri=/about/;icon-uri=/images/about.ico'>
<meta name='msapplication-task' content='name=The Big List;action-uri=/the-big-list-of-javascript-css-and-html-development-tools-libraries-projects-and-books/;icon-uri=/images/list_links.ico'>
<meta name='msapplication-task' content='name=jQuery Posts;action-uri=/category/jquery/;icon-uri=/images/jquery.ico'>
<meta name='msapplication-task' content='name=Start Developing;action-uri=/category/javascript/;icon-uri=/images/script.ico'>
<meta name='msvalidate.01' content='6E3AD52DC176461A3C81DD6E98003BC9'>
<meta http-equiv='cleartype' content='on'>
<meta name="news_keywords" content="World Cup, Brazil 2014, Spain vs Netherlands, soccer, football">
<meta name='tweetmeme-title' content='Retweet Button Explained'>
<meta name='blogcatalog'>
<meta name='csrf-param' content='authenticity_token'>
<meta name='csrf-token' content='/bZVwvomkAnwAI1Qd37lFeewvpOIiackk9121fFwWwc='>
<link rel='alternate' type='application/rss+xml' title='RSS' href='http://feeds.feedburner.com/martini'>
<link rel='alternate' type='application/atom+xml' title='Atom 0.3' href='https://example.com/feed.atom'>
<link rel='shortcut icon' type='image/ico' href='/favicon.ico'>
<link rel='fluid-icon' type='image/png' href='/fluid-icon.png'>
<link rel='me' type='text/html' href='http://google.com/profiles/thenextweb'>
<link rel='shortlink' href='http://blog.unto.net/?p=353'>
<link rel='archives' title='May 2003' href='http://blog.unto.net/2003/05/'>
<link rel='index' title='DeWitt Clinton' href='http://blog.unto.net/'>
<link rel='start' title='Pattern Recognition 1' href='http://blog.unto.net/photos/pattern_recognition_1_about/'>
<link rel='bookmark'title='Styleguide' href='http://paulrobertlloyd.com/about/styleguide/'>
<link rel='search' href='/search.xml' type='application/opensearchdescription+xml' title='Viatropos'>
<link rel='self' type='application/atom+xml' href='http://www.syfyportal.com/atomFeed.php?page=3'>
<link rel='first' href='http://www.syfyportal.com/atomFeed.php'>
<link rel='next' href='http://www.syfyportal.com/atomFeed.php?page=4'>
<link rel='previous' href='http://www.syfyportal.com/atomFeed.php?page=2'>
<link rel='last' href='http://www.syfyportal.com/atomFeed.php?page=147'>
<link rel='canonical' href='http://smallbiztrends.com/2010/06/9-things-to-do-before-entering-social-media.html'>
<link rel='EditURI' type='application/rsd+xml' title='RSD' href='http://smallbiztrends.com/xmlrpc.php?rsd'>
<link rel='pingback' href='http://smallbiztrends.com/xmlrpc.php'>
<link rel='stylesheet' media='only screen and (max-device-width: 480px)' href='http://wordpress.org/style/iphone.css' type='text/css'>
<link rel='wlwmanifest' href='http://www.example.com/wp-includes/wlwmanifest.xml' type='application/wlwmanifest+xml'>
## Other Resources
- [HTML5 Boilerplate explanations and suggestions of header tags](http://html5boilerplate.com/docs/head-Tips/)
- [Dublic Core Meta Tags](http://www.seoconsultants.com/meta-tags/dublin/)
- [Apple Meta Tags](http://developer.apple.com/safari/library/documentation/appleapplications/reference/safarihtmlref/articles/metatags.html)
- [OpenGraph Meta Tags](http://opengraphprotocol.org/)
- [Link Tag Meaning](http://intertwingly.net/wiki/pie/LinkTagMeaning)
- [Google Chrome HTML5 Tags](http://www.html5rocks.com/)
For what it's worth, most of the "Basic HTML Meta Tags" have no uses.
rating
if it'scontent
isadult
viewport
charset
theme-color
author
is rarely needed but perhaps include itcopyright
is useddescription
robots
,googlebot
,google
,google-site-verification
are a few others worth looking intoThe others are not needed, unless you are optimizing for some niche site that is the only site in the whole wide world to use them, or leaving goodies for people who snoop in your html (perhaps
designer
andreply-to
)This does not apply to the other tag groups here, especially
OpenGraph Meta Tags
andHTML Link Tags