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DNS monitoring

Monitor client DNS health before resolution problems become outages

DownCTL helps you see DNS failures, authoritative nameserver response evidence, and reputation issues beside the rest of each client website health story.

No credit card required during the trial period.

DNS Health Details

Last checked 3 minutes ago

Status
Healthy
Resolved IP
203.0.113.42
Record type
A

DNS evidence

myapp.com

Nameserver responses

  • ns1.dnsprovider.com

    192.0.2.10

    Responded

    14 ms

  • ns2.dnsprovider.com

    192.0.2.11

    Responded

    18 ms

Checks that the hostname resolves to an IP address and records authoritative nameserver response evidence.

Blacklist / DNSBL Details

Last checked 4 minutes ago

Status
Healthy
IP checked
203.0.113.42

Zone results

  • zen.spamhaus.org Clean
  • bl.spamcop.net Clean
  • dnsbl.sorbs.net Clean
  • b.barracudacentral.org Clean

DNSBL checks whether your server's IP appears on spam or abuse blacklists. Listed zones include cause context and delisting links when available.

What DNS monitoring tracks

DNS monitoring checks resolution and reputation signals that can interrupt access even when the website and servers themselves are healthy.

DNS health

DNS record availability

A and AAAA resolution failures

Authoritative nameserver response checks

DNS blocklist status across major zones

Delisting context for listed zones

Related alert rules

Why it matters

DNS issues can masquerade as outages, reputation problems, or intermittent customer failures. Keeping DNS visible shortens investigations.

DNS issues can look like full outages

Authoritative nameservers can fail even when a cached resolver still has an answer

Blocklist problems can affect email and reputation

DNS evidence is easy to miss manually

How it works in DownCTL

DNS monitoring keeps configuration risk visible in the same operating view as uptime, domains, SSL, and reputation monitoring.

  1. 1 Add a site
  2. 2 DownCTL checks DNS health, nameserver responses, and blocklist signals
  3. 3 Review results alongside uptime and SSL
  4. 4 Use zone-level blacklist details when an IP is listed
  5. 5 Alert on failures or reputation issues
FAQ

Common questions

What is DNS monitoring?

DNS monitoring checks whether your domain can resolve correctly and whether DNS-related health signals need attention. DownCTL also stores DNS record evidence and authoritative nameserver response details.

Does DownCTL monitor DNS blocklists?

Yes. DownCTL includes DNS blocklist monitoring as part of the site health surface, with zone-level context and delisting links when available.

Does DownCTL check nameservers?

Yes. DNS health details include authoritative nameserver records and response checks so you can see whether nameservers responded.

Can DNS issues trigger alerts?

Yes. DNS-related failures can be routed through DownCTL alert rules.

Is DNS monitoring included with website monitoring?

Yes. DNS health is one of the site-level signals DownCTL can monitor.

Start monitoring with DownCTL

Start your free trial and bring client-site uptime, website health, alerts, and status pages into one place.

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