No more recaptcha global key option?

Question

I am curious if there's still possibility to create global keys for reCaptcha.

Documentation points it is possible, but I can find no way - no such option is there whenever I add a site.

Answer 1

Google made reCaptcha Global URL possible again in 2016 for the I'm not a Robot checkbox:

• https://developers.google.com/recaptcha/docs/domain_validation

Now to get the keys to work on every URL you have to go to: "Advanced Settings" for your key, and untick the "Domain Name Validation" box:

• https://www.google.com/recaptcha/admin

This is a security hole, so you are required to check the hostname field in your JSON response and reject any solutions that are coming from unexpected sources:

• https://developers.google.com/recaptcha/docs/verify#api-response

Answer 2

This option has dissapeared. In fact, google is deleting that info from documentation step by step. There is an issue

Maybe we can ask to reopen that option, or at least, to obtain some info why this option its gone

Answer 3

Well the Secure Token would be the way to do this:

"A reCAPTCHA key is normally tied to a set of individual domains. However, you might have a large number of hosted domains and would like to have one key working on all of them - the solution is the secure token." https://developers.google.com/recaptcha/docs/secure_token

A similar question (How can I use reCAPTCHA v2 on a large number of domains?) has a PHP sample and a Java sample is in GitHub https://github.com/google/recaptcha-java/tree/master/appengine