Five lookups, one box
Every query runs against authoritative registries and routing data — no guesswork.
WHOIS lookup
Registrar, owner, registration and expiry dates for any domain.
DNS records
A, AAAA, MX, TXT, NS and CNAME records, resolved in real time.
IP geolocation
Country, city, ISP and network owner for any IPv4 or IPv6 address.
SSL certificate
Issuer, validity window and chain health, with expiry warnings.
ASN lookup
Autonomous system number, operator and announced IP prefixes.
Combined report
Run all five at once and get a single shareable overview.
Try a full lookup →From input to answer in seconds
Enter anything
Type a domain or an IP. We auto-detect what you pasted — no dropdowns.
We query the source
Registries, DNS resolvers and routing tables — queried live, never cached stale.
Read clean results
Structured, human-readable output you can copy, export or share by link.
Frequently asked
Do I need an account to run a lookup?
No. Every tool works instantly without signing in. An account only unlocks saved history and the API.
Where does the data come from?
Directly from authoritative sources — domain registries for WHOIS, live resolvers for DNS, and RIR routing data for IP, ASN and geolocation.
Can I look up an IPv6 address?
Yes. Paste any IPv4 or IPv6 address and the box auto-detects it, returning geolocation, network owner and ASN.
Is there an API for developers?
Yes. Every lookup is available as a JSON endpoint with a generous free tier — see the API page for details.