DNS Propagation Checker

Query 7 global public resolvers simultaneously to see if your DNS changes have propagated worldwide.

What is DNS propagation?

When you update a DNS record, the change does not appear instantly everywhere on the internet. Each DNS resolver (your ISP, Google, Cloudflare, etc.) has its own cache, and records are cached for a period determined by their TTL (Time to Live) value. Until a resolver's cached copy expires and it fetches the new record, some users may see the old value while others see the new one.

This tool queries 7 geographically and organisationally diverse public DNS resolvers at the same time, showing you what each one currently returns. If all resolvers agree, propagation is complete. If some return the old value, they are still serving the cached record and will update once the TTL expires.