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by IMSAI8080 1143 days ago
Probably watching for new DNS entries gets you most of the way there. When you fire up any new website you usually get a pile of visits from mysterious cloud boxes in the first 24 hours before you are listed on any search engine. I assume that's how they find you.
1 comments

How does one watch for new DNS entries? I was under the assumption that iterating the contents of a DNS zone isn't desirable now so is usually disabled/deprecated.
Not a DNS expert but I believe you can get regularly updated copies of zone files from ICANN. To get domains not under their observation I expect you can go out and make deals with registrars on an individual basis. For an individual or small organisation, probably easier would be to subscribe to an API that does it.