[jeroenhd]

I have blocked several Asian countries because their IP ranges kept sending stupid scrapers that repeatedly downloaded the same image with a made-up query, bursting through the basic cache setup. Now a billion or so people can't acces my server.

Rate limits didn't work because they kept rotating IP addresses.

I'm pretty sure Turnstyle would allow more people through than my current solution, but this was quick and easy. I expect to have to ban more ASNs from other countries in the future but the worst bots are now gone.