One domain per line, or separated by commas or spaces. Up to 100 at a time.
Each domain is looked up against its official registry, the same as the single domain age checker. Results export to CSV.
| Domain | Registered | Age | Registrar | Source |
|---|
Domains are checked a few at a time rather than all at once. Registries throttle bursts of queries, so pacing the list produces more complete results than firing everything simultaneously — and in testing it was also faster per domain.
Answers are cached for a week. A registration date cannot change once set, so a domain someone already checked returns instantly.
Some extensions return no date because the registry does not publish one.
.de and .au are the usual cases; those rows say so
explicitly rather than showing a blank or a guess.