Ask HN: How did internet discover my subdomain?

Re:Ask HN: How did internet discover my subdomain? by peeters on Friday March 07, 2025 @01:57AM (#43287855)

I was referring more to the fact that the user agent explicitly contained the answer, rather than suggestions that it was IP scanning. But you're right I do see one comment that mentions that. And many more likely assumed the OP already figured that part out.

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Re:Ask HN: How did internet discover my subdomain? by Dylan16807 on Friday March 07, 2025 @04:58AM (#43288817)

The user agent contains a partial answer. IP scanning doesn't give you the actual subdomain, so the question is slightly wrong or there are missing pieces.

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Re:Ask HN: How did internet discover my subdomain? by diggan on Friday March 07, 2025 @05:07AM (#43288863)

Judging by the logs (user agents really) right now in the submission, it's hard to tell if the requests were actually for the domain (since the request headers aren't included) or just for the IP.

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Re:Ask HN: How did internet discover my subdomain? by Dylan16807 on Friday March 07, 2025 @02:32PM (#43293530)

Yes, that's the question being wrong option I listed.

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