how.is · 17 listed services · provider site
Partner tier of the dns.pizza bot observatory: every network (ASN), named crawler, TLS (JA4) fingerprint and firewall rule seen in the last 7 days, refreshed hourly. The public tier is free at https://dns.pizza/bots.
Look up the company behind a domain: name, description, category, location, socials, mail/DNS/hosting providers and registration, each with source and confidence.
Has this page changed since your last call, and how much? The first call stores a baseline; later calls return a text diff (2% threshold).
See a web page: a 1280-wide JPEG of any public URL, viewport or full page (capped at 6000 px), with its final URL, HTTP status and title.
Live check of one or more URLs: HTTP status, latency, DNS resolve time, resolved IP, TTL, nameservers, TLS days remaining.
Network owner (ASN), company, geolocation, privacy flags and abuse contact for an IP address.
Whether the addresses behind a domain appear on spam and abuse blocklists.
A letter grade and point score for a domain security posture, with the scored items behind it.
Certificate validity, issuer, protocol and days until expiry for a domain.
Is this domain name registered? Asked of the registry over RDAP, with the standard first-year and renewal price when it is free to register.
How old a domain is: registration date, age in days and years, and whether it was registered in the last 30 days (a common phishing signal).
Registrar, creation and expiry dates, nameservers and status codes for a domain.
A, AAAA, MX, NS, TXT and other records for a domain, with resolve timing.
Should an agent click, sign in to, or pay this domain? A risk score and verdict (likely_safe / caution / high_risk, or inconclusive when a check could not run) with plain-English reasons, from domain age, spam/abuse bloc...
Everything about a domain in one call: DNS, WHOIS, TLS, DNSSEC, email auth, security score, blacklist status, plus IP intelligence for its A record.
SPF, DKIM and DMARC records and posture for a domain.
Whether DNSSEC is signed and validates for a domain.
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.