Would a DNS outage take your business offline?

Most domains run every nameserver at a single provider, with no DNSSEC and no CAA record. This checks the gaps that only become obvious during an incident.

Runs in your browser over DNS-over-HTTPS · nothing is sent to us or stored

What gets checked

Five signals that decide how resilient your DNS is.

Nameservers

Redundancy, and whether one provider outage takes you offline

DNSSEC

Cryptographic proof that DNS answers are genuine

CAA

Which certificate authorities may issue for you

A / AAAA

IPv4 and IPv6 reachability

TTL

How fast you can move during a migration

More dns tools

Check something else

All 24 tools

WHOIS / RDAPRegistrar · Expiry · Locks.np DomainsNepal · AvailabilityPropagationMulti-resolver · TTL

Found something you’d rather not fix yourself?

Configuring DNS, TLS and email authentication properly — without breaking live traffic — is part of our cybersecurity and managed services work.

Talk to an engineer