Registration event
A registration timestamp records when the registry object was created, not when a website was first published.
Direct answer: Understand registration, last-changed, expiration, transfer, redemption and pending-delete events without overstating what their dates prove.
A registration timeline is a set of labeled events from a named source, not a biography of the website or registrant. Preserve each event action, timestamp, timezone and responding service before comparing dates or inferring a lifecycle transition.
Key relationships at a glance
Last-changed event
A last-changed timestamp shows that the object changed without naming the field or actor.
Expiration event
An expiration date marks a lifecycle checkpoint rather than a guaranteed deletion or public release time.
Read current event actions in the RDAP lookup with their source and observation time intact.
For the post-expiry sequence, use the domain expiration timeline rather than treating one date as a guaranteed release time.
Use the domain status code guide to connect transfer, update or deletion restrictions with the observed timeline.
To place a dated registration event beside DNS, certificate and archived-web observations, follow the sourced domain-history method.
Registration events and what they mean
Registration
The registry object was created. This can predate any website, email service, certificate or current registrant. In RDAP, keep the registration eventAction attached to its eventDate.
Last changed
The registration object changed, but the event alone does not identify which field changed. Compare dated snapshots before claiming a transfer, contact update, nameserver change or renewal.
Expiration
A registry lifecycle date or registrar-facing renewal date. The source and label matter because grace periods, auto-renewal, auctions and registrar customer terms can change what happens next.
Transfer
Sponsorship moved between registrars. Nameservers, hosting, certificates and website content can remain unchanged, so transfer is not automatically a site-ownership event.
Redemption
A post-deletion recovery state that can require action through the sponsoring registrar and an additional fee. Exact options and deadlines depend on the registry and registrar.
Pending delete
A late lifecycle state in which restoration is generally no longer available. It still does not guarantee an exact public registration time or that the registry will release the name.
Timeline interpretation checklist
- Event action preserved
- Timestamp normalized to UTC
- Registry and registrar dates separated
- Status checked at the same observation
- Website history not inferred from registration alone
Questions about domain dates
Is the domain expiration date its deletion date?
No. Expiration can be followed by registrar renewal handling, grace periods, redemption, auctions or other registry-specific lifecycle steps.
Does last changed show what changed?
No. The event records that the registration object changed but does not identify the field, actor or reason. Compare dated records before making that claim.
Does a transfer event mean the website changed owners?
It means registrar sponsorship changed. Website control, registrant data, DNS and hosting may remain the same or change on different dates.