How to test reCaptcha

I added a captcha to my custom login page (classic) as described here: Add Bot Detection to Custom Login Pages. But actually I could not find a way to test if everything is working fine. The challenge response is always: {required: false}… I tried a VPN, Private-Windows, User-Agent, …

Is there a way to force the captcha-challenge? I just want to test if everything looks good and also want to test if the error-cases are handled correctly by myself.

Thank you and best wishes!

You can test invisible recaptcha by using Chrome emulator. You will need to add a new custom device (BOT) in developer tools, and set User Agent String to Googlebot/2.1 on Desktop . Then use the new BOT device when testing on your site to trigger the recaptcha authentication.

Hi Roslyn! Thank you for your help!
I tried your approach, but the response is still {required: false}…


  • I’m using the auth0 branding section in the dashboard for the custom login page
  • I added the code from the example in the auth0 docs (Add Bot Detection to Custom Login Pages)
  • I have “auth0-js”: “9.14.0”, installed
  • I created an reCaptcha invisible via Google-reCaptcha-Account and enabled Bot Detection via the Auth0-Dashboard, also pasted the keys


  • Open LandingPage
  • Open Chrome Inspector (with BOT, Googlebot/2.1 on Desktop)
  • Click login, which redirects me to the login-page (custom domain)
  • Response from challenge {required: false} → not captcha is getting displayed.

Previous message deleted due to SPAM reasons.

Hello, I would kindly ask you to provide more information about how to call captcha.

Currently in my project I use Simple Captcha When Risky, and I’ve already read Roslyn comment but It didnt help. I was also trying to change geolocation, etc. I see this topic has not been resolved for so long and I decided to put comment here

Are there any chances that you could provide more ideas?

I just have to mention that I found the solution. There’s need to change user agent, however not using chrometools but chome extension called Custom User Agent String


and just add the Bad User Agent inside


Thanks for sharing that with the rest of community!

This FAQ explains how to manually trigger Captcha for testing, so link it to this topic.