Blekko announced they have made improvements to their crawler and indexer to provide more up to date and fresher results to SEOs looking for SEO related data.
Blekko, the Slashtag Search Engine, offers a nice set of free SEO tools. In fact, they pride themselves as being different by offering all these SEO tools for free. So much so, they upgraded their crawler and indexer to provide more up to date information specifically for SEO purposes. a Blekko wrote:
When it comes to pages crawled, the sweet spot for blekko is a little more than 4 billion pages. To keep our crawl fresh, we update at least 100 million pages each day. As soon as our crawler, Scoutjet, crawls a webpage, users have access to information about it through blekko’s SEO product. We want to enable people to see the Internet the way a search engine sees it, especially what the rest of the internet is saying about an url.
Scoutjet updates the top ranked starting pages on the Internet around every hour, while other high quality pages are checked at least every week. The continuous updates to blekko’s SEO data include page content, meta data, duplicate text, and inbound link counts. Staying up-to-date is as much about forgetting the old as finding the new. So, we eliminate inbound links that are no longer live and duplicate content that is no longer available.
Here is a screen shot:
Both Google and Bing offer Webmaster Tools, while Google only shows you data about your web site, Bing recently added link explorer, a competitive link analysis tool. This tool replaced Yahoo Site Explorer, which was the first search engine backed free link analysis tool.