Google is believed to apply a variety of filters to sites that fail to follow their TOS. More often than not, if you correct all errors, you will be forgiven and filters will be removed (even with no reconsideration request required).
The major problem is, webmasters might be completely unaware of the fact the site is [...]
Find broken links on web sites
* Description
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* Frequently Asked Questions (FAQ)
* The story of Xenu’s Link Sleuth (TM)
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Description
Xenu’s Link Sleuth (TM) checks Web sites for broken links. Link verification is done on “normal” links, images, frames, plug-ins, backgrounds, local image maps, style sheets, [...]
What does this tool do? This tool analyzes a web page, searching for characteristics that search engines could consider spam. If you don’t know what “search engine spamming” means or if you want to know how this tool works, you can read the Spam detector FAQ.
What type of tricks does it find? [...]