One of the best sites I have found for developer tools. I use it a lot. Check server headers, duplicate content, domain check, modified handling, title and headers, link analysis, keywords, spiders, java script, search data, browser tools, firefox extension, search engine referrers, ramblings, yahoo secret, uniqueness, data center, result over dc, indexed page count, supplemental index, recognized links, cache-data, Google PR, PR per dc, search PR. All on one site. I hope you find it as useful as I have. TOOLS "I like good tools"