The Affilorama Firefox SEO Toolbar provides you with useful information and data to make the analysis of domains and pages super easy.
Quickly evaluate the ranking of the domain/page with the following data:
* Google PageRank
* Alexa Traffic Rank
* Complete Traffic Rank
* Backlinks to the domain registered with Yahoo and Google.
* Indexing on Yahoo and Google.
* Review the Onpage details - Title, Meta Keywords, Meta Description and H1, H2 tags on the page.
* Links to any external domains, so you can rapidly scan a page to get an idea if there is an opportunity to get a backlink to your site or how it links out (grey by default).
* No follow links so you can quickly evaluate whether links from this site are no-followed or if a site is "blocking" any links (red by default).
* Check the Whois information on the domain.
* Read the robots.txt file on the domain.
* Check when the domain was created and how old it is.
* Check if the domain has an XML sitemap, and look at the contents.