I reply here because I get a notice from no reply. I would send credentials, but I won't post them on here nor do I think you are asking me to.
Nothing is cached anywhere I can find. Nor have they ever been. On the options page, there is nothing for cache. On the performance page I tried it once way back when it first came out and it jacked with my Live Chat so it has been off since then. Using REMOTE_ADDR in the How it gets IPs