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This is fun. Is it not checking for previously submitted URLs though? I can seemingly re-submit the exact same URL and get a new link every time. I would expect this to fill the database unnecessarily but I have no idea how the backend works.

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Am I missing something, or would these essentially be implemented via DNS records? It's not clear to me that keeping the links in a database would be necessary at all (unless the DNS records are what you mean by "database")

DNS is only for resolving the host part. The path is not passing through a dns query.

In example.com/blah, the /blah part is interpreted by the host itself.

And apart from that I would indeed consider DNS records a database.

I got https://microsoft.web-safe.link/cZ17Xn_claim_gift_card.msi for this article. What do you get?

Just resubmit it, you'll probably get a new link. I get something different every time.

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