A user just emailed me saying he could not complete registration in my website. I just checked and already found out it's the recaptcha that is causing the problem.
I have been using this recaptcha php library and it has been working perfectly for more than 3 years until today: https://developers.google.com/recaptcha/docs/php?hl=zh-TW
The recaptcha displays successfully when the registration page loads, but it says
Could not open socket when it tries to contact the
api-verify.recaptcha.net during captcha verification.
I suspect there's something wrong with
api-verify.recaptcha.net, when I ping it, it redirects to
Is this normal?