Hello,

I have a server with several domains, in the configuration file of each domain I have a line like this to block bad bots.

If ($ http_user_agent ~ * (zealbot|MJ12bot|AhrefsBot|sogou|PaperLiBot|uipbot|DotBot|GetIntent|Cliqzbot|YandexBot|Nutch|TurnitinBot|IndeedBot)
Return 403;
}

This works fine.

The question is, if I increase the list of bad bots to 1000, for example, this would be a speed problem when nginx manages every request that arrives.

I have domains that can have 500,000 hits daily and up to 20,000 hits.

Thank you all.

Greetings.