mysql - CPU High Load because of search engines mass crawling -


i have server containing many web sites, , when sites have huge updates, search engines :

bing (specially), yandex, yahoo

come server using many ip addresses , don't attention cpu load , mysql queries , try fetch web pages in same time,

so how can limit them whole server

currently blocked these search engine ips thank you

you have create robots.txt search engine read , know not allowed index (crawl) whatever specify on it.

for bing, instance, here guide: https://www.bing.com/webmaster/help/how-to-create-a-robots-txt-file-cb7c31ec


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