Category Type Value Description Example
Specifies the base URL of the document. This is used when dereferencing relative URLs in the page. <BASE href="">
The title tag defines the title that will appear in the title bar of your web browser. The title must appear between the head tags. <title>Title of page</title>
Relevant resource <link />
Style resource <link rel="stylesheet" href="/style.css" type="text/css" />
Script resource <script language="Javascript" type="text/javascript">
Meta <META attribute1 attribute2> This element can be used to specify name/value pairs describing various properties of the document
Meta Description ... <meta name="description" content="About a Page" />
Meta Keywords Specify keywords for certain search services to use <meta name="keywords" content="key1,key2,..." />
Meta Refresh To have a different page automatically loaded after X seconds <META HTTP-EQUIV="REFRESH" CONTENT="X; URL=http://some.address/file.html">
Meta Expires Specify an expiration date for the page so that it will be reloaded after a certain date >
Meta Description Specify a description of your page for certain search engines >
Meta cache-control <meta http-equiv="cache-control" content="no-cache">
Meta pragma <meta http-equiv="pragma" content="no-cache">