WEB1052 - The <title> tag contents are not unique within the site
Each <title> tag in a site should be unique.
Explanation
Search engines use the contents of the <title> tag both to provide some of the details about the site contents and to provide specific details about the contents of a page. Each page should have a single, unique title contained inside a <title> tag inside the <head> tag section of the page.
Details
The relevance of any term in the <title> tag is no longer exclusive to this page if the contents of the tag are duplicated in another <title> tag in the site. This may reduce the ranking of both pages in search-engine results.
The <title> tag is most important tag that the site developer controls that can influence the relevance and ranking of a site in search-engine results. A unique, accurate, and descriptive title can improve the click-through volume to the site.
The <title> tag belongs inside the <head> tag section of a page and is usually is placed before the <meta name="keywords"> tag and the <meta name="description"> tag.
Example
The following is an example of a correctly formatted <title> tag, with <meta name="description"> and <meta name="keywords"> tags in the <head> tag section.
<head> <title>Contact Us</title> <meta name="description">Contact information for Proseware, Inc., including addresses, phone numbers, and email</meta> <meta name="keywords" content="Proseware,Proseware applications,Proseware utilities,Proseware tools,Proseware server tools"/> </head>
