Google Web master Tools , Google Analytics and Lynx are the three tools i use to check my .
Just to add...
The best Tools on the internet and these tools will help you to optimize your website and move your search engine position higher.
*Alexa-Ranking
Alexa page-rank-and-rating-results
* Anchor Text Backlink Checker
This tool is to check your backlinks and the anchor text used in those backlinks.
* Backlink Analyzer
Research and analyze websites for link quality. Checks for Indexed Pages, Links to Website, EDU & .GOV Links, Domain Age & Expiration,
Google PageRank, Alexa Traffic Rank, DMOZ Listing
* Backlink Anchor Text Analyzer
This tools help you determine the backlinks of your website and link text used by your backlinks to Link to your website
* Backlink Builder
Building Quality backlinks is one of the most important factors in Search Engine Optimization�