When my website is requested through this interface, it will be redirected to someone else’s site. I have confirmed that my program has no loopholes, because even if I shut down my service, it will be redirected.
DNS doesn’t do redirects. Something in the request chain is causing it.
Please check Page Rules, Redirect Rules, and Bulk Redirects for any unexpected settings. Then also check the Audit Log to see if you can track down when it was changed.