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bug 1199166 - disallow robots from comparing#3447
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was this a suggested change?
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Yes, suggested by Google webmaster tools
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+r would crawl again |
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bug 1199166 - disallow robots from comparing
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Today's down-time incident was caused by Yahoo Slurp! crawling onto a bad and expensive compare transaction.
To help mitigate the risk of search crawlers triggering overload transactions, we want to add a number of new
Disallowdirectives to ourrobots.txt, so we can expect well-behaved robots to stay away from them.I used Google Webmaster Tools to verify that this
robots.txtfile will not disallow regular docs urls. I couldn't find equivalent webmaster tools for Yahoo, so I emailed Kev Needham (our Yahoo liaison) and set up a Google Analytics alert to email me if our traffic from Yahoo drops below our minimum observed threshold, just in case.