Crawler Inserting Url-Encoded Spaces in URLs Causing 404 Errors?

Dec 31, 2007 • 6:53 am | comments (0) by twitter Google+ | Filed Under - Ask Jeeves

A WebmasterWorld thread is reporting several webmasters noticing that's crawler has recently been generating tons of 404 (file not found) errors on their sites. The issue appears to stem from auto inserting URL-Encoded spaces into the URL. URL-encoded spaces are those %20 signs you may find in URLs.

The specific crawler called out is Reports say that this has been going on for two weeks now.

Forum moderator, jdMorgan, offered up a mod_rewrite technique to force the bot to obtain the correct URL and not a %20 URL. So if you are noticing this issue as well, check out the thread and try implementing jdMorgan's solution.

Forum discussion at WebmasterWorld.

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