A recruiter recently sent me an "I'd like you to explore..." email. Every "further info" link in it pointed to znsrc.com/[unique_id] rather than to the displayed address.

That felt dishonest and I ignored the email.

That’s standard click tracking usually. No different than clicking on a sponsored Google result.

Sure, would have preferred an honest "we use standard click tracking service, it will totally redirect you to our website" or some such thing