Building Resilient DNS Monitoring

When DNS goes down, everything else follows. At CaptainDNS, monitoring is approached in layers: change tracking, resolution testing and propagation measurements.

We start by comparing each DNS zone change. An automatic alert allows you to validate the change and confirm that it matches the production plan.

We then schedule iterative resolutions from multiple regions around the world. This reveals cache or delegation issues that only appear once propagation is complete.

Finally, we perform propagation scans via public resolvers. Comparing responses highlights stale caches and missing DNSSEC chains before they generate incidents; email deliverability and reception issues, inaccessible websites, etc.

CaptainDNS keeps deliverability KPIs in the green while enabling the technical team to work efficiently.