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- Search Engines
-- Search Engine Spider and User Agent Identification
---- Fake user agent strings
g1smd - 3:42 pm on Jun 25, 2012 (gmt 0)Thread source:: http://www.webmasterworld.com/search_engine_spiders/4462691.htm
Detect which ones are present, or missing, and send 403 response in return. Certain headers are missing or faked from some bots.
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