WDTalk

Sitelogr.com  is one of my favorite Internet tools. Take a look.

What does Sitelogr offer?
Sitelogr is a free service that provides a vast quantity of valuable information to webmasters about every website on the internet, gathered from diverse sources in real-time.

Among those are the queried website’s estimated value in dollars, it’s world rank, estimated income per day, estimated visits per day, the hosting country, the website IP, Alexa Rank, Google PageRank, Google index, Yahoo index and a nice suite of Domain tools, including robots, hostname, headers, trace, service status, ping and DNS. Throw in a Domain Traffic Graph, IP Map Location and Whois Information.

markosweb.com (smartviper) is another of my favorites.

What does Markosweb offer?
It’s a web service that collects and analyzes any data about domains and keywords they are optimized for. Smartviper includes a domain worth analyzer and historical statistics. They currently use around 25+ open API sources researching the most popular domains and keywords. Markosweb stores over 250,000,000 records (for over 3,300,000 domains) in their database and continue to grow.

Their goal is to help webmasters check their competitors and understand why their ranks are so high. Besides that, on the basis of some of their conclusions, they create useful summary tables for webmasters.

Serversiders.com is my third featured Internet tools favorite

What does serversiders.com offer?
Insert a domain and find out that sites title, language, global traffic ranking, traffic ranking within .com, pages indexed by Google, tags, hosting locations, hosting provider network, launch, IP address, reverse lookup, domains linking, domains on IP addresses near and domains with similar traffic rankings.