DNS propagation checker
Check a DNS record against major public resolvers at once to see whether a change has propagated or is still cached.
Check propagation across resolvers
Queries Google, Cloudflare, NextDNS, and AdGuard public resolvers over DNS-over-HTTPS. Differences usually clear once TTLs expire.
Why DNS changes take time
When you change a record, resolvers around the world keep serving the old value until its time-to-live (TTL) expires. Comparing several independent resolvers tells you whether a change has rolled out everywhere or is still in flight.
What this tool gives you
- The same record queried across Google, Cloudflare, NextDNS, and AdGuard resolvers in parallel.
- A clear consistent-or-not verdict so you know when a cutover is safe to rely on.
- Support for A, AAAA, MX, TXT, NS, CNAME, SOA, and CAA records.
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Cutting over a captive-portal or splash-page domain means waiting on DNS. Purple manages portal hosting and DNS so your guest WiFi stays online through the change.
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