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<meta name="description"> Tag

This tag — which you must nest between the opening and closing <head> tags — provides a description of your page in search results. Without it, the search results will print the first words that appear on your page. For that reason, every site should include a description tag in its home page.

A description tag for a home page should describe the general purpose of the site. Add the descriptive text to a "content" attribute in the opening tag (there is no corresponding closing tag for the description tag). The following example shows a complete home page description tag:

<meta name="description" content="WebCentral is the home page of campus Web services for campus Web developers." />

For other pages in your site, the description tag should describe the specific purpose of that page. For example:

<meta name="description" content="Learn about the purpose of the Meta Description tag and how to add one to a web page" />

Since the first words on most pages refer to site navigation, this tag can help visitors distinguish between pages in your site and find the information they are seeking when they search. For instance, compare the following:

Without a description tag:

Screen shot of search results for page lacking description

With a description tag:

Screen shot of search results for page with description

To prevent search engines from truncating your page's description, keep your description short — we recommend 150 characters or less.

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NIS  |  OIT  |  Boston University  |   January 9, 2007