Per Query parameters and cached responses · Cloudflare Automatic Platform Optimization docs
could you please add in the following query parameters in the allowlist:
These query parameters are added by ClickDimensions email marketing
The particular problem we are experiencing is that the increasing usage of email security systems by businesses is that check every link in an EDM email send to approximately 80K people are being verified by the email security system on receipt and this causes a massive surge in traffic to the website, none of which can be served from cache due to the presence of the above query parameters. This at times is effectively causing a distributed DDoS on the webserver when emails are being sent. If these query parameters were added, then the pages could be served from Cloudflare cache.