google recaptcha without any form or submit button

[ZOIAVAN]

I want to setup security challenge google re-captcha front of my site without any form. for example, if a visitor try to visit on my site (http/domain.com) they need to pass security challenge(google captcha) without filling any form. and when he/she passed security challenge the security page will move him automatically to the main page of my site (http/domain.com/wellcome). can someone help me how I don this?

 

[Ralston18]

Doubt that that is viable.

You might provide some "connect the dots" puzzle that would have to be done via some range of random numbers. Or have them select from a group of photographs having some common element - e.g., a balloon.

But the visitor would still need to do some form of submit.

Otherwise just some random mouse moves/actions could pass and they would gain access. Capchas are meant to require a level of abstract thinking that is not easily replicated with algorithms. Algorithms used by bots.

Appreciate that you are attempting to be considerate of future visitors and make it easy to visit. However most people will tolerate some minimal challenge (e.g., the letters/numbers are actually readable) and key in the sequence accordingly.

More of my own subjective opinion than objective per se. But you do need to have the defenses....