I'm using chrome on linux and noticed that this year cloudflare is very agressive in showing the "Verify you are a human" box. Now a lot of sites that use cloudflare show it and once you solve the challenge it shows it again after 30 minutes!
What are you protecting cloudflare?
Also they show those captchas when going to robots.txt... unbelievable.
What are you protecting cloudflare?
Also they show those captchas when going to robots.txt... unbelievable.