How Effective Is IP Blocking at Stopping Unwanted Traffic? or Can IP Blocking Really Keep Hackers and

IP blocking is a basic first line of defense, but it’s not enough on its own.

Think of it like locking your front door—it keeps out casual intruders, but a determined attacker will find another way in.

For DDoS, you need more: rate limiting, geo-blocking, and a good WAF. Cloudflare’s free tier is a solid start.