dns propagation checker

See a DNS change land, resolver by resolver.

Query 19 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.