DNSRadar

About DNSRadar

DNSRadar watches DNS records and fires a webhook the moment one of them changes, which turns a class of silent outage — a record edited by a teammate, a registrar transfer, an expired delegation, a hijacked subdomain — into something a team hears about before customers do. A monitor is a domain, a subdomain, a record type and an expected value, created either in the dashboard or by POSTing to the API; the site documents the same call in cURL, Node, Python, Ruby and Go on the landing page, which signals the audience accurately. All the major record types are covered including A, AAAA, CNAME, MX, TXT, NS and PTR, and checks run as often as every five minutes. Complete change history is retained and browsable, so an incident review can establish exactly when a record moved and to what, rather than reconstructing it from memory. The product is explicitly built for automation rather than for a console: there is full API documentation plus an OpenAPI specification, monitors and history are managed programmatically, and webhook endpoints are unlimited on paid tiers with multiple notification channels available. The vendor publishes a 99.9% uptime commitment. Quota is counted per monitored check rather than per domain, so watching many record types on one domain and one record across many domains cost the same.

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