Free Webmaster Tools

In this post I would like to write about set of most useful free webmaster tools. Every webmaster who wants to have successful site use his/her own set of free webmaster tools. I am writing about set of tools which I am actively using. And I also try to categorize tools. What are necessary tools for webmasters?

1. Keyword research tools
2. Domain research tools
3. Design and development tools
4. Visitors statistics tools
5. Promotion tools
6. SEO tools for market position research
7. Blogger tools
8. Page monetize tools

Keyword Research Tools

Yahoo Overture Tool
The best online keyword research tool. After entering term tool shows you related searches that include your term and estimated number of times that term was searched on last month.

Wordtracker
Free keyword suggestion tool. After entering a starting keyword tool generates up to 100 related keywords and an estimate of their daily search volume. After registration you can gain more results for your term.

Domain research tools

Whois
Lookup registration data for domains. Very interesting data are usually domain age, registrator data and name servers. Tool also shows existing domains for keyword

Design and development tools

Sitemap Generator
Tool finds all internal links for page and from selected it generates sitemp for Google and Yahoo

HTML Validator
Tool checks syntax of selected page. Very useful tool to have clear code without possible error.

CSS Validator
Tool checks syntax of CSS for selected page.

Link Validator
Tool checks validity of all links on page.

Keyword Density Checker
Tool checks density of phrases on page. It is also possible to choose how many words phrases are checked.

Visitor Statistics Tools

Google Analytics
Very strong tool for checking your visitors activity. Very wide variety of checked aspects for visits.

Promotion tools

Website Promotion Services
More than 10 000 places where you can submit your page. After registration of possibility to submit project to directories for free.

Directory Critic
Very good list of directories and article directories.

Market Position Research Tools

Search Engine Ranking by Country
Tools find for selected keyword your position in Google, Yahoo, MSN in 12 countries.

Keyword Ranking Tool
Excellent keyword tracking tool for keyword position, backlinks and indexed pages with history.

Website Force Checker
Comprehensive tool that calculate value of site in points from 0 to 100 000.

Blogger Tools

Feed Stats Tool
FeedBurner is the leading provider of media distribution and audience engagement services for blogs and RSS feeds.

Web Blog Ping Service
Pinging is used to let other websites know that your blog has been updated.

Free Blog
Best way how to start blogging without a penny.

Page Monetize Tools

Google AdSense
The most used PPC advertising system.

Link Price Calculator
Very good tool when you want to buy or sell links.

I describe in this article set of free webmaster tools most useful for me, and for other webmasters. I know that on internet exists much more tools. But I don't want to describe them all. It is impossible, of course. If you know other useful free webmaster tools not mentioned here write me about them in discussion.