step 1

Send /start command to your bot and click Group Setting button.

Now select your group and you can view the group’s basic information. (Click here to learn how to add groups?)

Click CAPTCHA button.

It is currently disabled. Click Disabled button to switch to enabled. To turn off the feature, click Enabled to switch back to disabled.

Select the Test Duration

Choose the Test Method—you can select either Click test or Math test.

Now all new members joining the group will receive a CAPTCHA test.

They must pass the CAPTCHA test to send messages normally. Members who fail to complete the test within the specified time will be kicked out of the group.