I think I couldn't explain well. When we use ISP's DNS, we get a local IP address and a web-page at that address, explaining who blocked the site and why. But

I think I couldn't explain well. When we use ISP's DNS, we get a local IP address and a web-page at that address, explaining who blocked the site and why. But if I use Google's or Cloudflare's public DNS, the query won't get an answer, falls to timeout.