Where the data comes from
The tool checks IANA’s public RDAP bootstrap directory to find the registry service for the extension, then reads the registration events that service returns.
Free domain utility
Look up public registration dates, registry expiry and registrar expiry details for a domain. The checker uses RDAP, the current standards-based way to access public domain registration data.
An expiry date may not be published for every domain extension. No RDAP record or missing date does not prove that a domain is available. Confirm renewal and availability with the domain registrar.
Public RDAP registration data
The tool checks IANA’s public RDAP bootstrap directory to find the registry service for the extension, then reads the registration events that service returns.
Registry expiry and registrar expiry can be different fields. This page labels them separately and shows only dates returned by the public record.
An expired domain takes the website and email offline instantly and can cost hard-won rankings if it lapses or is snatched up. Agencies use expiry checks to monitor client domains, buyers check registration dates to judge a domain's history, and anyone managing a portfolio avoids the single most embarrassing outage in marketing: forgetting to renew. Public RDAP data makes these checks free and fast.
It uses the domain extension to locate the right public RDAP service through IANA's bootstrap directory, then reads the registration events that the registry or registrar returns, including registry expiry, registrar expiry, registration date and domain status. All of this happens through a small API proxy, and no account or API key is needed.
No. Public RDAP coverage and the fields returned vary by registry and extension. Some registries do not publish an expiry date at all, and .pk domains are not covered by public RDAP, so the tool directs you to PKNIC's official WHOIS lookup instead.
No. A missing RDAP record or absent expiry date does not confirm availability. Some registries limit public data, so always check with the registrar where you plan to register the domain before assuming it is free to take. Premium, reserved, or recently transferred domains can also return limited public data.
The registry date is the authoritative expiry at the registry level, while the registrar date can reflect the registrar's own records, auto-renewal grace periods or display quirks. The tool labels them separately so you can compare both and confirm renewal with your registrar when they disagree.
This tool reads public registration data and does not contact a registrar or change domain settings.