[shawnz]

See: https://developers.google.com/recaptcha/docs/faq

Look under the section "use recaptcha globally" -- this is what I was referring to. However it's not clear to me if this approach enables use in China or not.

[Theodores → shawnz]

Thanks for that. Changing to www.recaptcha.net right now!

Could be a while before I get enquiries from China but there is only one way to find out.

Google did say 'globally'...