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Meta tags are special tags that go within the <HEAD> </HEAD> tags of the document.They are most often used as a place to put information used by search engines to locate web site content.
Example (the meta tags used on the Webwork Table of Contents page):
<html>
<head>
<title>Webwork</TITLE>
<meta name="description" content="Webwork - an instructional web site produced by Jay Boersma.">
<meta name="keywords" content="Webwork, Boersma, Jay, web instruction, web tutorial, web teaching, HTML, basic HTML, HTML tutorial, HTML guide, GIFs, JPEGs, clip art, web art, rules, graphics, illustration, shareware art, Icons-4-Us, Backgrounds-4-Us, Patterns-4-Us, GIFs-4-Us, The Web Rules, web graphics, Webpix, Web-pix, Web Pix, Webpaper, Web Paper.">
</head>
<body>META name="description" = a brief summary of the site's contents
META name="keywords" = words that a user is likely to type into a search engine's input box when seeking something on the web.
If a site is rated with RSACi, the rating info is put in a meta tag:<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.rsac.org/ratingsv01.html" l gen true comment "RSACi North America Server" by "jay@re-vision.com" for "http://www.ecnet.net/users/gas52r0/Jay" on "1997.07.04T13:08-0500" r (n 0 s 0 v 0 l 0))'>
Meta tags can also be used to automatically re-load a different page after a specified number of seconds:<meta http-equiv="refresh" content="2; url=20_forth.html">Content="2; indicates a 2-second pause before 20_forth.html is loaded.