Webmaster Tools

Deleted Domains Checker - Find deleted domain with either Alexa Ranking, Dictionary Definitions, Google Pagerank, or Yahoo! Backlinks. Your choice.
Fake Pagerank Checker - Check if your Pagerank is valid or invalid.
Google Banned Checker - Check if you are banned from the leading Search Engine.
Keyword Density Tool - Check how many time a keyword appears, and its percentage of occurrence to the rest of the text in your webpage.
Keyword Suggestion - Let this tool suggest you some keywords for your webpage.
Link Popularity - Find your Pagerank, as well as the amount of backlinks your domain has on Google, MSN, and Yahoo.
Multi-Rank Checker - Check multiple websites' Pagerank and Alexa rank.
Multiple Keyword Search Engine Position - Check a website's search engine position with multiple keywords.
Multiple Website Search Engine Position - Check multiple websites' search engine position with a single keyword.
No-Follow Finder - Scan a website to find no-follow links to various other sites.
Reciprocal Link Checker - Check multiple sites to see if they are really linking back to you.
Search Engine Position Checker - Check the position of a single site with a single keyword on various search engines.
Search Engine Saturation Checker - Check the number of pages search engines have listed from your website.
Site Spider Viewer - Find spider information about your site.
HTTP Header Viewer - View the headers of the site of your choice.
Whois - Find the Whois information about a certain domain. Also, check if it has been already registered or not.