I don't know about TOR, but a couple of years ago we had a site on Cloudflare that had the CAPTCHA come up for visitors from mainland China - where the great fi

I don't know about TOR, but a couple of years ago we had a site on Cloudflare that had the CAPTCHA come up for visitors from mainland China - where the great firewall blocked the requests to Google. Chinese users were effectively locked out. We contacted Cloudflare about this and got dismissive replies.