I just realized that my FastCGI caching may be rendered useless…
We are using affiliate tracking on our site (powered by EasyEngine). So 99% of our hits to the site include query strings in the URL.
I know that the server config says to bypass cache if there’s a query string in the URL.
So does this mean that FastCGI cache is rendered useless? I think we still need some sort of caching mechanism to handle traffic spikes and heavy traffic days. Is this possible with W3TC or WP Super Cache?