Domain age is how long ago a domain was registered. It shows in the domain's public registration record (WHOIS or RDAP).
Why it matters for email
Spammers buy domains, use them for a few days and drop them. So a domain registered last week that suddenly sends a lot of email looks exactly like spam, and filters treat very new domains with suspicion until they've built some history.
What to do with a new domain
- Buy sending domains a few weeks before you need them.
- Set up the website redirect and authentication straight away.
- Warm up every mailbox for about two weeks before the first campaign.
- Start campaigns at a low daily volume and raise it slowly.
Is an old domain always better?
Age helps only if the history is clean. A bought old domain may carry a bad reputation or blocklist history. Check a domain's registration date with the free domain age checker and its record with the blacklist checker.