a0494a2a_ng__404_Not_Found_Error__Files__Category
[Comments and examples] Poorly built web crawlers may request URLs that don't exist because of incorrect parsing of links. http://www.example.com/examplehttp://www.example.com http://www.example.com/examplehttps://secure.example.com http://www.example.com/example/ftp://ftp.example.com/otherexample http://www.example.com/"http://www.example.com">otherexample http://www.example.com/'http:/www.example.com/example' http://www.example.com/"http:/www.example.com">Example</a> http://www.example.com/example+%255bPLM=0%255d+GET+http:/www.example.com/otherexample http://www.example.com/Javascript:... [Category] 
Malformed URLs
Benign Unexpected URLs - Part 1 - Missing (404 Not Found Error) Files