Why DNS monitoring matters
DNS is the foundation of every digital service. A single misconfiguration can make your website unreachable, block customer email, or cause security checks to fail. Manual checks aren’t enough — drift creeps in silently when records are edited, providers change, or propagation behaves differently across regions.
endpnts.io continuously validates DNS health so you can fix issues before users notice. Whether you run a shop, SaaS, or blog, safe and consistent DNS means fewer embarrassing outages and smoother customer experiences.
What we check
- Forward & reverse DNS: detect mismatches that break SSL or mail deliverability.
- Record consistency: ensure A/AAAA/CNAME results align across regions.
- TTL awareness: catch records with dangerously short or excessively long TTLs.
- Propagation checks: verify changes spread correctly to multiple DNS resolvers.
- Unexpected drift: alert when records differ from last known state.
Common issues we surface
- Websites unreachable because an A record points to the wrong IP.
- Reverse DNS not matching forward, causing mail to fail spam checks.
- CNAME chains broken by provider cutovers or missing intermediate records.
- Propagated values differ between Europe and US resolvers.
- Records silently modified by third-party DNS providers without notice.
Diff-focused alerts
See exactly what changed — old vs. new values — so you can act fast.
Multi-region probes
Checks come from different geographies to mirror real customer resolution paths.
Integrations
Send DNS alerts to Slack, Teams, Discord, email, webhooks, or SMS (PAYG).
Signals at a glance
A quick look at what’s validated and why it matters.
| Check | Validation | Impact if broken |
|---|---|---|
| Forward/Reverse | Match of A/AAAA with PTR records | Mail servers and SSL often reject mismatched domains |
| Consistency | Compare results across regions | Some users may reach the wrong host, others none at all |
| TTL | Check TTLs are within recommended ranges | Too short → resolver load; too long → stale records linger |
| Propagation | Confirm record changes appear globally | Some regions lag, causing partial outages or email delays |
| Drift | Diff current vs. last-known state | Unnoticed provider changes can reroute services |