// domain · ip · asn · ssl · dnsbl

WHOIS.LOOKUP

domain intelligence in one shot — registrar, dns, geo, certificate, and 22-server blacklist scan

try:

// public_history

PUBLIC · LAST 25

// what_this_does

01

WHOIS Intelligence

Query the global registry network with two-level referral following — first the TLD registry (Verisign, Afilias, etc.), then the registrar's own WHOIS server (MarkMonitor, GoDaddy). This is how we get full registrar info even for ICANN-redacted domains like google.com.

02

Domains, IPs & ASNs

Drop in example.com for a domain, 8.8.8.8 for an IPv4, an IPv6 like 2606:4700::1111, or an ASN like AS15169. The tool detects the input type and runs the right pipeline automatically.

03

Direct URL Lookup

Every lookup is shareable. Append a domain to the URL — /whois/example.com — and the page auto-runs that query on load. Bookmark, link, embed in tickets. Each URL has its own SEO meta and is independently indexable.

04

Beyond WHOIS

One query → five parallel checks: full DNS (A, AAAA, MX, NS, TXT, CAA, SRV, SPF, DMARC), IP geolocation with proxy/VPN/hosting flags, live SSL certificate inspection with SAN list and OCSP, and a 22-server DNSBL blacklist scan.

// frequently_asked

What is a WHOIS lookup?↓

A WHOIS lookup queries the public domain registration database to retrieve information about a domain — including registrar, registration & expiry dates, nameservers, DNSSEC status, and (where not redacted) registrant contact details. It's the canonical "who owns this?" tool for the internet.

Is this WHOIS tool free?↓

Yes — completely free, no signup, no API key, no rate-limited "trial." There's a fair-use limit of 30 lookups per IP per hour to keep upstream registries happy.

What can I look up?↓

Domains (example.com, including new gTLDs like .app/.dev/.io/.ai), IPv4 addresses (8.8.8.8), IPv6 addresses (2606:4700::1111), and Autonomous System Numbers (AS15169). The tool auto-detects which type you've entered.

How do I share a lookup?↓

Each lookup gets a clean, dedicated URL: https://www.ihacker.in/whois/example.com. Just copy it from the address bar — it's bookmarkable, shareable, and indexable.

Why is some WHOIS data hidden?↓

Since GDPR (2018) and the ICANN Temporary Specification, most registrars redact registrant name, email, address, and phone from the public WHOIS record. The tool detects redaction and shows a Privacy Protected badge. To get the actual contact, you'd typically file a request via the registrar's abuse contact (which we surface).

How many blacklists do you check?↓

22 — including Spamhaus (ZEN/SBL/XBL/PBL), SpamCop, SORBS (and its SPAM/SMTP/DUL variants), Barracuda, CBL Abuseat, Abuse.ch, PSBL, Manitu, GBUDB, WPBL, 0Spam, Unsubscore, S5H, MegaRBL, UCEPROTECT L1, and SWINOG. IPv4 only — DNSBLs don't really exist for v6 yet.