Link Popularity Tool Click Here

How popular is your website? This tool will show you how many other sites are linking to you. Most search engines use this data to calculate how popular your website is. The more links to you, the better your search engine rankings will be. You can even provide some competitors' URLs to compare your site to theirs.

W3C Checker Click Here

This validator checks the markup validity of Websites.

Page Rank Checker Click Here

In essence PageRank provides a means to determine the value of a website for any given search term or keyword phrase. This value is determined by how websites link together with the more popular (and theoretically better) sites receiving more links. It’s these incoming links that help the site have a high PageRank value and thus display higher up in search results.