4 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Use when you need email validation or to verify email addresses (domain, MX records) before sending, signup or lead scoring. Do not use for confirming that the mailbox itself exists (no SMTP probe is done) or sending ema...
Use when an agent must decide whether to write to an address, or clean a list before sending: it scores one email 0-100 with a verdict (ok, risky, disposable, undeliverable, invalid) and the evidence under it: every poin...
Everything DNS says about one domain in a single call: whether it is registered, its A and AAAA addresses, nameservers, MX servers, SPF and DMARC, DNSSEC, and whether it looks parked. Built for going through a list of do...
DNS record lookup in one GET: A, AAAA, CNAME, MX, NS, TXT, SOA or CAA for one hostname, with TTL and the record data. curl: GET /dns?name=example.com&type=A (type defaults to A). Response: {"query":{"name":"example.com",...