Reverse proxy being blocked by Vercel - IP whitelist?

Lately Vercel seems to be blocking IPs a lot more. I run a reverse proxy service on Fly, and a lot of people want to proxy to Vercel. They’d seem happy to whitelist but they need the IPs. Is there any way to get those?

The outgoing IPs that Fly uses?

They depend on the region and are subject to change but @kurt may be able to provide you with the current set:


Oof. This is a pain, we can’t reliably give you the IPs an app might connect to Vercel with. They change frequently! Have they given you any other options? mTLS or anything?