BattlequeenYume said:
I've got a cloudflare message since today who pop up and say "checking your browser before accessing konachan"...
Cloudflare is a web service that many websites use to protect from viruses, bots, ddos attacks and the like. When you access konachan, your browser is redirected to cloudflare, which then passes you on to Konachan proper, after verifying you are not a bot or infected with a computer virus etc.

Verifying the kind of browser attempting to access a website is one of the techniques used to detect bots, which generally do not operate from inside a browser. There are many parameters such as screen size, fonts, window location,..... basically your browser does a lot of stuff which makes it difficult for bot developers to incorporate every little detail that might be queried by a website.