DNS propagation checker
Changed a DNS record? See what the world's biggest public DNS resolvers answer right now, including the answer given to networks in different countries.
What DNS propagation means
DNS resolvers keep a copy of each record for as long as its TTL (time to live) says, often from 5 minutes to 24 hours. After you change a record, each resolver keeps serving the old answer until its copy expires, so for a while different people see different results. This tool asks Google, Cloudflare, Quad9, AdGuard, NextDNS and AliDNS directly, and asks Google on behalf of networks in six countries, the same way geo-routed sites decide which server a visitor gets.
How to use it
- Enter the domain and choose the record type you changed.
- Press Check and compare the answers.
- If some resolvers still show the old value, wait for the TTL to run out and check again.
Frequently asked questions
How long does DNS propagation take?
Usually minutes to a few hours, and at most as long as the old record's TTL. Changing name servers can take up to 24–48 hours because those records have long TTLs.
Can I speed up propagation?
Lower the record's TTL (for example to 300 seconds) a day before you make the change. On your own computer you can also clear your DNS cache so you see the new value sooner.
Why do resolvers in different countries show different IPs?
Big websites and CDNs give each region the address of a nearby server. Different answers by country are normal for them and do not mean that propagation has failed.