799 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.
AAAA record of owa.<domain>: looks up the owa host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like owa without enumerati...
CNAME record of owa.<domain>: looks up the owa host under the domain you give (CNAME via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like owa without enumera...
TXT record of owa.<domain>: looks up the owa host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like owa without enumerating...
A record of ns1.<domain>: looks up the ns1 host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns1 without enumerating sub...
AAAA record of ns1.<domain>: looks up the ns1 host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns1 without enumerati...
CNAME record of ns1.<domain>: looks up the ns1 host under the domain you give (CNAME via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns1 without enumera...
TXT record of ns1.<domain>: looks up the ns1 host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns1 without enumerating...
A record of ns2.<domain>: looks up the ns2 host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns2 without enumerating sub...
AAAA record of ns2.<domain>: looks up the ns2 host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ns2 without enumerati...
Is TCP port 53 (DNS) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers f...
Change watch for is port 53 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with befo...
Bulk is port 53 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents t...
Domain-level contact preflight with MX provider, SPF, DMARC and structured risk signals. Does not claim mailbox existence.
DNS TTL audit: the cache time-to-live for A, AAAA, MX, NS and TXT records with plain-English notes on which are too high for a safe migration and which are unusually low. Plan DNS cutovers with confidence. $0.01 per doma...
Wildcard DNS check: resolves a random non-existent subdomain to see whether the zone answers everything (wildcard record), which affects subdomain enumeration, email catch-all behaviour and phishing risk. $0.01 per domai...
DNS change detection: snapshots a domain's A, AAAA, MX, NS, TXT and CAA records, compares with the snapshot from your previous call (kept 90 days) and reports which record types changed. Call it on a schedule to get DNS...
IPv6 readiness check for a domain: AAAA records for the site, IPv6 on its mail exchangers and on its nameservers, and whether it is dual-stack. Compliance and modernization audits. $0.01 per domain.
TXT records for a domain as answered by NextDNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to s...
Extract page metadata from a public URL: title, meta description, canonical, language, OpenGraph/Twitter card tags, favicon, headings (h1-h3) and up to 200 absolute links.
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no...
Privacy-safe email verification evidence for agents at microprice. Validates syntax and domain mail readiness with live MX/A/AAAA DNS plus SPF and DMARC, role/free-provider/known-disposable/typo signals, a bounded 0-100...
DNS domain lookup over Google DNS-over-HTTPS for A, AAAA, MX, TXT, NS, CNAME, SOA, or CAA records. Useful for domain checks, mail/MX infrastructure and TXT evidence.
Domain intel for any hostname: DNS A/AAAA/MX/NS/TXT records via DoH plus RDAP registration data (registrar, created, expires, statuses). Query param: domain (required).
Full-domain intelligence report in one call: complete DNS sweep (A/AAAA/MX/NS/TXT/SOA/CNAME), RDAP registration data (registrar, dates, statuses), DNSSEC presence, mail posture summary (SPF/DMARC/DKIM selectors), TLS cer...