Search Engine IP Addresses | Search for a title, author or keyword | ||||||||
Search Engine IP Addresses Are you interested in tracking the IP addresses and hostnames of search engine spiders? You can see my latest lists of search engine IP addresses and User-Agents here. Tracing search engine IP addresses is handy for a number of reasons. You might want to see when your web site was spidered by search engines. You might want to know which pages where spidered. You might want to ban some bots and let others in. You might want to see which bots are obeying your robots.txt files. You might want to redirect bots to other pages or serve them different content ( cloaking ). Keeping track of the various IP addresses belonging to search engine spiders is a difficult enterprise and requires the assistance of a large number of people. I'm constantly receiving reports of new spiders and doing the research necessary to verify that they are indeed new and that they do indeed belong to search engines. The lists are as up to date as possible, but there is no guarantee that they include all of the IP addresses of all search engines ( it would be impossible to guarantee such a thing ). Also, there is no guarantee that all of the IP addresses contained in the lists belong to search engines ( they are sometimes reassigned or abandoned ).
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