Apache Logs Referrer URL seems cached


We are using Cloudflare and we installed https://support.cloudflare.com/hc/en-us/articles/203656534-How-do-I-restore-original-visitor-IP-with-Apache-2-4- . Unfortunately seems like the referrer url in the apache logs seems cached coz all of our site visitor has the same referrer URL.

We also have a page rule: .domain.com/ Cache Level: Cache Everything.

Any ideas we can fix to track actual referrer url on apache logs?

Thanks in advance