# Domain & WHOIS lookup

See a domain's registrar, registration dates, lock status, and when it expires.

Enter a domain and we query the registry over RDAP (the modern replacement for WHOIS) and report who it is registered through, when it expires, and how well it is locked down.

## What we check

- When the domain was registered and when the registration expires, with a countdown.
- The registrar the domain is managed through, and when its record was last changed.
- Whether a transfer lock is in place to stop the domain being moved without your say-so.
- Whether DNSSEC is enabled to protect against forged DNS answers.

## Why it matters

A lapsed domain registration is a total outage: the site and its email stop resolving the moment it expires, and the name can be snapped up by someone else. It is also one of the easiest failures to prevent, because the expiry date is known months in advance. A transfer lock and DNSSEC are quiet protections against a domain being hijacked, so it is worth confirming they are on.

## Frequently asked questions

### Is this WHOIS?

It uses RDAP, the structured successor to WHOIS that registries now provide. It returns the same core facts (registrar, dates, status) in a reliable format.

### Why do some domains return no details?

Not every top-level domain publishes RDAP data, and some fields are redacted for privacy. When a registry does not expose the data, we say so rather than guess.

### Can Ranetrace watch this for me?

Yes. Ranetrace tracks your domain expiry and lock status and warns you well before the registration is due, so a renewal never slips through.

## Run this check

Run it on your own domain here: https://ranetrace.com/tools/domain-lookup

## Related tools

- [SSL/TLS certificate checker](https://ranetrace.com/tools/ssl-checker.md)
- [DNS lookup](https://ranetrace.com/tools/dns-lookup.md)
- [HTTP status & speed check](https://ranetrace.com/tools/http-status.md)

This page is a one-time snapshot. Ranetrace monitors this continuously and warns you before it becomes a problem: https://ranetrace.com/pricing.md