Does CloudFlare help?

Question

Domain Name System

Good day! I would like to hear your opinion about this service, namely, did it help you at all (I'm interested in the Free tariff) and does it make sense to link the site to this service?

Answer 1

Helps against layer 4 attacks (eg traffic that flows in by IP address), if attacks used to go through layer 4, then you need to change the IP address (back-end server), and pass all sub-domains through cloudflare so that the back-end IP address is impossible was to know.
A 5 second delay helps against layer 7 attacks, but it can be bypassed by cookie emulation by each attacking bot (or an attack tool that uses amplification (eg joomla / xml-rpc and others)).
Now many botnets bypass this type of cookie protection (since this is the simplest, simplest user-agent check with normal ones, and issuing cookies, well, a couple of useless ones in general), all this is easy to emulate on a bot in a good botnet script, so if you if you are attacked by schoolchildren - it will help, if from "specialists" - then not.
You can try to take a PRO tariff for $20 and put a captcha there at the entrance, 99.99% of systems now cannot emulate (bypass in any other way) captcha, and it will protect the site from layer 7 attacks (HTTP requests), well, if you have been subjected to L4 attacks before, change the IP address and everything will be fine with your site, the only thing "wrong" in CF is that sometimes it breaks through even with simple requests without any bypasses, it just sometimes takes and starts up traffic ( request(s)) without verification.

Answer 2

of course, helped
take ping-admin.ru, pull from the server by IP and by domain through CF, the difference is immediately visible