Assuming the website itself isn't blocked by the GFW, many site owners regularly either set a Cloudflare rule to block or challenge (recaptcha) all china traffic (or even all non-US traffic for US-only businesses) due to the amount of spam and malicious requests that come from IPs originating in those countries. My own sites has shown some attacks from within the US but not nearly as much as from China before I set up a firewall rule to block China.