dnsdoctor.dev

One DNS Doctor propagation watch: a name is re-checked across six vantage points for a paid window of up to 24 hours, polled by handle.

One DNS Doctor HTTP ping watch: a URL is checked from five regions on four continents on a 5- or 15-minute cadence for a paid window of up to 24 hours, polled by handle.

One DNS Doctor bulk scan of 2-50 domains in a single call, priced per domain.