Short answer
WHOIS is the public record of who registered a domain and when it expires. Most registrars now hide personal contact details behind a privacy service by default, so the useful things you can still read from it are the expiry date and the current nameservers.
This is a general web-hosting explanation, not specific to Traxio.
Learn more
- What happens when a domain expires?The stages a domain goes through after expiry, how it affects your website and email on Traxio, and how to recover it.
- Where to change nameservers at your domain registrarRegistrars name the nameserver setting differently. Where to look, what the options are usually called, and the mistakes that stop a change saving.