WebLight is a tool to run tests on websites and verify that there are neither problems with the HTML nor broken links.
One of WebLight's main advantages over its competitors is that it can identify and work with criteria different from HTML 4.01, which normally aren't supported by most web browsers.
Also, it can analyze and locate hundreds of documents and broken links per minute.
WebLight is a very useful tool for web developers and people well-versed in HTML.