Do you use Google Webmaster Tools?

This is one of the best tools you can find because it connect you directly to Google. I like all the search data that i can get from that but mostly the errors data and the "fetch like Google bot" which just recently helped me to find out my my homepage got banned (dont worry, every thing are fixed out it was a code error)

 

It is a good tool to know each and everything about your site and it guides you in your SEO work, very helpful, no doubt to it.

 

I agree these guy google webmaster tool is really awesome tool.

 

If you want to check crawling errors and HTML errors ten Google webmaster tool is the best. I always use this tool to check these errors.

 

I love Google webmaster tool due to following features:
Search Queries
Back links count
Analyze Web Content
No more site errors: broken links to crawl errors
site’s load time/speed
and many others...

 

Yes I use it. And you should use it too. It is a really useful tool. You can get a clear idea about which sites links back to you, what type pf visitor visits your website most etc from the tool.