FastPixel is a cloud optimization service that needs to make several requests to your pages and posts in order to optimize them.
Cloudflare often blocks our worker servers due to multiple requests, which can result in pages not being cached or optimized properly. In such cases, the red “Error” status will be displayed on the Cache Status page of our plugin.
In such cases, you will need to whitelist our IPs within Cloudflare, as well as in any server firewall or security plugin you may have. Afterwards, you will need to cache the pages again using FastPixel:
136.243.103.55
176.9.77.187
5.161.48.189
We also recommend disabling their caching and Rocket Loader features to avoid any possible conflicts!
