Ok nevermind, all are back

See here for further explanation: https://station.railway.com/questions/eu-west-metal-down-8506fc87#sy66

Yup apologies here it looks like the link from Google Cloud had a blip

We're rolling out our new "metal edge" for all services. You can enable it on the Service -> Domain setting by clicking the lightning bolt

This will mean that all traffic is served by us and never touches Google cloud. Apologies for this!