Check DNS propagation from 20+ global resolvers simultaneously.
The DNS Propagation Checker queries many resolvers around the world (e.g. Google 8.8.8.8, Cloudflare 1.1.1.1, and regional providers) and shows you what each returns for A, AAAA, MX, or other record types. After you change DNS, propagation is the time until all resolvers see the new values; this tool shows you who still has old data and who has updated. Use it to confirm a migration or to debug "works for me but not for others" issues. Results are a snapshot; TTL and caching mean values can change over the next minutes or hours.
Typically 20 or more resolvers across multiple regions and providers.
Resolvers cache records until TTL expires. High TTL means longer propagation.
When all (or nearly all) checked resolvers return the new values. Allow at least one full TTL period.
Yes. Many propagation tools let you choose record type (A, AAAA, MX, TXT, etc.).
No. The tool only performs normal DNS lookups; it does not modify your records.