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All check types
Network & Protocols

DNS Monitoring

DNS monitoring queries your records on every interval and validates the answers — catching propagation failures, hijacked responses and resolver outages that leave HTTP checks blind.

Your site can be up while nobody can resolve it

What it checks

  • A, AAAA, CNAME, MX, TXT, NS and other record types
  • Expected answer content per record
  • Resolution latency from the probe
  • Resolver failures and NXDOMAIN regressions

Set it up

  1. 1Add a DNS monitor with the record name and type
  2. 2Set the expected answer to assert against
  3. 3Alert on mismatch or resolution failure

FAQ

What does DNS monitoring catch that HTTP does not?

DNS is upstream of everything: a broken A record, expired zone transfer or hijacked NS takes your site down for users while every HTTP check at the origin stays green.

Related check types

Ping MonitoringRaw reachability with real ICMP — not a TCP shortcutTCP Port MonitoringAny port, any protocol — answer the only question that mattersUDP MonitoringThe protocol nobody monitors until DNS or a game port dies

Start monitoring in minutes

External probes plus internal agents, escalation chains and status pages — free tier, no card required.

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