Duplicate HTTP requests with Cloudflare proxy

[andersme87]

What is the name of the domain?

Theralist

What is the issue you’re encountering

When Cloudflare proxy is enabled, I sometimes receive duplicate requests at origin. I have checked the Cloudflare logs to ensure there is only one request to Cloudflare, and my server logs indicate there are multiple. If I disable Cloudflare proxy, and change to DNS only, I don’t receive these duplicate requests. Interestingly, this appears to only really happen from Googlebot. I also noticed that when this occurs, I see one of the requests have an Origin Status Code of none in the Cloudflare logs.

[sdayman]

@andersme87

I have checked the Cloudflare logs

Is this through Enterprise logging (logpush/logpull) or Instant Logs (Biz/Ent plans)?

@andersme87

I sometimes receive duplicate requests at origin.

With the exact same timestamp?

[andersme87]

After disabling and enabling every setting I could, I’ve finally tracked it down. The culprit appears to be enabling Automatic Signed Exchanges (SXGs). When I disable this, the issue goes away. This makes sense given this a Google related setting and I only saw the issue from Googlebot.