Start with the registered domain
Open the Domain Age Checker and enter a domain such as example.com. You can also paste a full HTTP or HTTPS URL. The checker removes the path and looks up the registered domain, so https://blog.example.com/articles/ becomes example.com.
This distinction matters when you research a hosted blog or shop: the result describes the registered parent domain, not the date an individual account or subdomain was created. Check the normalized domain shown in the result before using its age in your notes.
Read the creation date
- Select Check Domain Age and wait for the registry response.
- Find the registration date and the calculated years, months, and days.
- Review the registrar, expiration date, and any reported statuses for context.
- Open the source record and keep the retrieval time with your findings.
The three dates answer different questions. Registration is the starting point used for age. Expiration describes a reported registration deadline. Updated means the record changed; it does not identify a website launch or prove an ownership change. The RDAP response standard defines these as separate registration events.
Understand the calculation
Our checker counts calendar years, months, and days in UTC. For example, a hypothetical registration dated January 15, 2020 is 6 years, 9 months, and 14 days old on October 29, 2026. Dividing total days by 365 would give a different kind of answer because calendar years and months vary in length.
For dates near a month boundary, the calculation uses the final day of a shorter month when necessary. The interface also provides total days for comparisons. A missing, invalid, or future creation date produces no calculated age; it is never replaced with an estimate.
Save a useful research record
Use Export CSV to keep the dates, source, and retrieval timestamp. Write down the question you were investigating alongside the export: for example, whether a seller’s stated registration year matches the public record. A saved report describes what was returned at that time, so refresh it before relying on it for a later decision.
If you share a lookup link, the recipient can run a new check. It is not a permanent snapshot of your original result.
Know what the result cannot prove
An old registration does not prove that the same owner held it continuously, that a website stayed online, or that its content is reliable. A deleted and re-registered name may also have an earlier history that the current record does not reveal.
For a website timeline, continue with domain age versus website age. If no date is returned, follow the lookup troubleshooting guide instead of treating the missing value as zero.