middle.network
Health check

DNS propagation and DNS health checkers

Changed a record and waiting? These tools show who sees the new value, who still has the old one, and whether your nameservers are healthy.

6
tools
5
live now
6 tools
No tool matches. Try “dns”, “mail” or “ping”, or see every tool.

Propagation

2
DNS propagation See whether a DNS change has spread to resolvers. Tested from around the world
Authoritative vs cached Compare the source of truth with what resolvers cache. Tested from around the world

Nameservers and DNSSEC

2
DNS health report Test each nameserver: answers, SOA serials, timing. Live lookup
DNSSEC validation Validate the DNSSEC chain of trust. Live lookup

Resolvers

2
DNS resolver speed test Time public resolvers, cached and uncached. Tested from around the world
DNS leak testComing soon See which DNS servers your device really uses. Live lookup

Common questions

See whether a DNS change has spread, compare authoritative and cached answers, validate DNSSEC and test nameservers.

As long as the old record’s TTL. A 3600 second TTL means up to an hour. Lower the TTL a day before a planned change.

Either a change is still spreading, or the domain uses a CDN that hands out a nearby address on purpose. The propagation tool tells you which.