[ZendTo] China Firewall Captcha compliant

William Brobin william.brobin at zynstra.com
Wed Oct 23 18:13:11 BST 2019

Hi Arnaud,

I faced the same problem and due to the situation in cui a day the moment they seem to be cracking down even further and the only perment fix ( they are now killing vpns and tunnels etc ) is to use a Chinese service such as Alibaba,

I'm unsure if anyone else has any suggestions but this seemed to work for us,

Kind regards,


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From: ZendTo <zendto-bounces at zend.to> on behalf of arnaud Chevalier via ZendTo <zendto at zend.to>
Sent: Wednesday, October 23, 2019 4:07:16 PM
To: zendto at zend.to <zendto at zend.to>
Cc: arnaud Chevalier <arnaud_chevalier at hotmail.fr>
Subject: [ZendTo] China Firewall Captcha compliant


Dear Mailing List,

Thank you very much for added me in.

Like i said in the object i'm struggling with the China Firewall, with the basic configuration of Zendto, the recaptcha just disappear on the page when a client access it from china.

What i tried :

Plan A : Change google.com to recaptcha.net in config files => same effect (disappearance)

Plan B :  Roll-Back config files and Proxying and Reverse-proxying google.com as mydomain.com => works during ~3 months, then same effect (disappearance)

So plan C is to implement another captcha service that works in china like alibaba , did some of you tried that?

If you have any hint, i would appreciate a lot!

Have a nice day.


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