I’m facing a big problem in DNS queries recently it happens two times daily i guess with over 700 dns queries and it used to be even more like 1300 in just single second , it seems as some sort of sophisticated DNS DDOS attack or something , any tips or ways to help and avoid such ones.
Why are worried about the amount of DNS requests? They are free and don’t really mean anything, it could be bots making DNS requests or other health services. Just because there are more DNS requests doesn’t mean your server would be under high load.
Cloudflare handles the DNS queries, so none of these requests involve your origin or infrastructure. You have correlation, not causation. If your origin is slow, I’d recommend digging into that with the hosting provider.
You have no control over who queries your DNS or when. One of my domains looks like this and it has 0 public websites associated with it.