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Description:
Metatags are a way for you to define your web page and web site to the outside world. You can declare the title, keywords and description, which help your placement in search engines. In addition, you can specify who owns the copyright, how often the page is to be visited by search engines and many other useful pieces of information.
There are two type of Metatags.
| HTTP-EQUIV |
These tags are the equivalent of http headers. When you click on a hyperlink which beings with http:// you are asking that a page be transferred to your browser using the http protocol. What happens is the following.
- The web server makes sure the page exists
- It sends back an http header block which contains information about the page
- It sends the page itself.
What HTTP-EQUIV Metatags do is define additional information to be sent to the browser in the http header. This gives the web site creator additional control over this data. |
| NAME |
The NAME attribute is used to define information which is to be referenced outside of the document. This includes data passed to search engines and directories, spiders and other entities. |
Metatags must be placed between the <HEAD> and </HEAD> tags, before the <BODY> tag. On framed pages, be sure and include the Metatags on the frameset page and the framed pages.
Attributes:
| http-equiv="name" content="value" |
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Specifies data so that an HTTP (web) server can include additional data in it's header fields. HTTP headers are defined in RFC1945 (HTTP/1.0) and RFC2068 (HTTP/1.1). May be one of the following.
| Value |
Description and example |
| content-language |
Specifies the language. |
| content-script-type |
Defines scripting language used. |
| content-style-type |
Defines type of style sheets used. |
| content-type |
Specifies type of data within document. |
| expires |
Expiration date of the document. |
| ext-cache |
Define Netscape external cache. |
| page-enter |
Specifies the transition effect that is to be performed when the page is loaded. |
| page-exit |
Specifies the transition effect that is to be performed when the page is unloaded. |
| pics-label |
Includes rating information so content filters can do their job. |
| pragma |
Do not locally cache documents. |
| refresh |
Indicates the document displays for a specified amount of time before switching to a new URL. |
| set-cookie |
Sets the name and value for a persistent cookie. |
| site-enter |
Specifies the transition effect that is to be performed when the site is loaded. |
| site-exit |
Specifies the transition effect that is to be performed when the site is unloaded. |
| window-target |
Specifies the name of the frame for the current page. |
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| name="value" |
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Name and description of the element that is being set.
| Value |
Description and example |
| abstract |
Define a secondary description. |
| author |
Records the name of the author of the document. |
| classification |
Classify the site into the appropriate category. |
| copyright |
Used to include copyright information in the document. |
| description |
Some search engines pick up this description to show with the results of searches. |
| distribution |
Declares whether a document is available to the web or on an intranet. |
| expires |
Expiration date of the document. |
| generator |
The name of the program that created the document. |
| keywords |
Inform search engines what your web site or page is about. |
| owner |
Define the owner of the page or site. |
| progid |
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| rating |
A simple rating for a site. |
| refresh |
Indicates the document displays for a specified amount of time before switching to a new URL. |
| reply-to |
Email address of contact for document. |
| resource-type |
Indicates the type of web resource. |
| revisit-after |
Defines how often search engine spiders should revisit your site. |
| robots |
Define pages to be excluded from robot indexing. |
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