Comment by 65
5 days ago
This is useful especially with the weird .blog insertion on LeanDomainSearch. But I've always wondered how LeanDomainSearch gets results so quickly? The results are almost instant for thousands of domains.
5 days ago
This is useful especially with the weird .blog insertion on LeanDomainSearch. But I've always wondered how LeanDomainSearch gets results so quickly? The results are almost instant for thousands of domains.
There's an old blog post[1] by the founder of LeanDomainSearch on this.
[1]: https://mattmazur.com/2018/05/18/extracting-a-list-of-all-re...
They likely use a batch API or maintain a local cache of recently checked domains, combined with prefix/suffix filtering against a pre-computed availability database rather than doing individual RDAP/WHOIS lookups for every possible combination.
>But I've always wondered how LeanDomainSearch gets results so quickly?
You can sign up with Verisign and they let you download a text file with all the registered .com domains, updated daily.