dns propagation checker
See a DNS change land, resolver by resolver.
Query 16 independent public resolvers at once and watch which ones already have your update.
Enter a domain above to check how it resolves across every provider below.
How this works
01
You submit a domain
The request never leaves this site — no third-party script sees the domain you're checking.
02
The server fans out
A Cloudflare Pages Function queries every resolver below in parallel over DNS-over-HTTPS, in wire format, with a 6-second timeout per resolver.
03
You see the spread
Matching answers, stale answers, and resolvers that haven't picked up the change yet are all shown side by side.
Resolvers queried
A mix of major anycast providers and independently operated regional resolvers, so results aren't all coming from the same handful of networks.