.cern domain availability and monitoring
Look up any .cern name to see if it is registered, who runs it, and when it expires. Add it to your watchlist and we check it again every night.
How we check .cern domains
We query the registry's own RDAP service at https://rdap.identitydigital.services/rdap, the protocol that replaced WHOIS. Answers come straight from the source, so an available result means the registry itself has no record of the name.
.cern at a glance
- Check method
- RDAP (registry data)
- RDAP server
- https://rdap.identitydigital.services/rdap
- Last synced with IANA
- Jul 18, 2026
Waiting for a .cern name?
Add the domain to your watchlist and Domain Sentinel checks it every night. You get an email the moment it becomes available, expires, or changes hands.
Watch a .cern domain