Backlink checker - A free tool used to find backlinks pointing to a particular page on your website. This is very useful for webmasters who want to know what kind of sites link to a website and whether there are any sitewides. The backlink finder also shows the PageRank of the linking pages.

Domain name availability and WHOIS - A tool that will show you whether a particular domain is registered or not. In case the domain is already taken then you can also see the WHOIS information (obviously if domain name privacy is not turned on).

Website speed test - An easy tool to see how fast your web server loads up a particular page on a website. Compare your website loading speed to other sites or just check if your web hosting provider uses a fast server.

IP Address finder - A free tool to find the IP (Internet Protocol) address of a website. Works also as a Reverse IP checker to find the domain name from an IP. The page will also reveal all of your personal data based on the Internet Protocol assigned to your computer/interface.

Keyword density tool - A free tool that checks the keyword density on any particular page of your website. Use this keyword checker to analyze and optimize the amount of certain keywords on the site in order to improve your visitor experience as well as search engine positioning.