What developers build with the DNS Lookup API

Real applications shipping on this endpoint today — each with the problem it solves and the numbers that made it worth wiring up.

Email Server Validation

Use our DNS Lookup API to query MX records for mail server configuration, then check TXT records for SPF, DKIM, and DMARC policies. Validate email infrastructure before sending.

Verify MX records point to valid mail serversCheck SPF records for authorized sendersValidate DKIM and DMARC configuration

90% fewerbounced emails

Improve inboxplacement rates

Validate beforesending campaigns

Domain Ownership Verification

Automate domain verification by querying TXT records with our API. Check if the required verification token exists before proceeding with service setup.

Automated verification checkingSupport for any verification token formatReal-time DNS record queries

Automate 100%of verification checks

Instant feedbackon DNS changes

Reduce supporttickets for verification

DNS Infrastructure Monitoring

Periodically query DNS records with our API and compare against expected values. Alert on unexpected changes to A records, nameservers, or security-related TXT records.

Detect unauthorized DNS changesMonitor nameserver configurationTrack DNS propagation

Detect changeswithin minutes

Prevent hoursof downtime

Security alertsfor DNS hijacking

Build your use case next. Free tier, no card — the DNS Lookup API is live in minutes.

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Scaling up?

Volume pricing, custom SLAs, and dedicated support for high-traffic teams.

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