Cloudflare is not protecting/caching my website

Hello. I have two domains pointing to the same Render.com deployment:

  • Flaut.ru
  • Flaut.travel

For some reason static assets like .js, .css etc gets cached by Cloudflare (cf-cache-status: HIT) at flaut.ru as well as nel, report-to and strict-transport-security response headers being added to origin server’s response. But flaut.travel doesn’t have those headers and every single static resource is being served from origin server (cf-cache-status: DYNAMIC all the time). I walked through every single setting there is in Cloudflare admin and settings for both domains are absolutely identical. In DNS tab all CNAME and A records are being proxied through Cloudflare (orange cloud). What am I missing here?

Hi. The origin server for flaut.travel is setting an E-Tag header. That might be the cause for the discrepancy.

https://support.cloudflare.com/hc/en-us/articles/218505467

Well it seems like I had email obfuscation enabled for flaut.travel but disabling it didn’t resolve this issue.