Whoistrackr
WHOIS, RDAP & DOMAIN INTELLIGENCE

Look up any domain

Free WHOIS/RDAP, DNS, SSL and header lookups. Get current registration details, DNS information, and server diagnostics in seconds.

Try: example.com google.com openai.com whoistrackr.com
Free tier: 30 lookups / min per IP. Need higher automated throughput? Join the API waitlist.

What is WHOIS?

WHOIS is the traditional text-based protocol for querying domain registration records, including the registrar, creation and expiration dates, nameservers, and EPP status flags. 

Domain Name: EXAMPLE.COM
Registry Domain ID: 2336799_DOMAIN_COM-VRSN
Registrar: RESERVED-IANA
Creation Date: 1995-08-14T04:00:00Z
Registry Expiry Date: 2027-08-13T04:00:00Z
Name Server: ELLIOTT.NS.CLOUDFLARE.COM
Name Server: HERA.NS.CLOUDFLARE.COM
Status: clientDeleteProhibited

What is RDAP?

RDAP (Registration Data Access Protocol) replaced legacy gTLD WHOIS on January 28, 2025, delivering standardized machine-readable JSON over HTTPS with clear GDPR privacy controls. 

{
  "ldhName": "example.com",
  "events": [
    { "eventAction": "registration",
      "eventDate": "1995-08-14T04:00:00Z" },
    { "eventAction": "expiration",
      "eventDate": "2027-08-13T04:00:00Z" }
  ],
  "status": [ "client delete prohibited" ]
}

Domain monitoring for what matters

Single lookups are available free today. Automated watchlists, change alerts, bulk CSV, and API keys are coming soon.

View proposed plans →
Coming soon

Expiry alerts

Join the waitlist to get notified before a tracked domain reaches expiration.
Coming soon

DNS & SSL change alerts

Planned alerts for nameserver, registrar, DNS record, or SSL certificate changes.
Coming soon

Watchlists

Organize multiple domains in one place. Preview the sample watchlist dashboard.
Coming soon

Bulk CSV lookup

Upload domain lists via CSV and export structured registration & DNS reports.
Coming soon

API access

Metered developer REST API keys for integrating WHOIS/RDAP and DNS lookups.

Domain intelligence guides

Straightforward technical documentation on RDAP, DNS records, and domain registration lifecycles.

Protocol Guide

RDAP vs. WHOIS & GDPR Redaction

Why ICANN sunset gTLD port-43 WHOIS obligations on January 28, 2025, how GDPR redaction works, and how to request data via ICANN RDRS.

Read guide →
DNS Reference

DNS Record Types Explained

How A, AAAA, CNAME, MX, TXT (SPF/DKIM/DMARC), NS, SOA, and CAA records route traffic and secure domain email.

Read guide →
Lifecycle Guide

Domain Expiry, Redemption & Drops

Understand EPP status codes, Auto-Renew Grace Periods, Redemption Grace Periods (RGP), and the 5-day Pending Delete drop window.

Read guide →