Test invisible recaptcha

Question

We have integrated invisible recaptcha in one of our websites. Whenever we submit the form it automatically submits.

I read in some google groups that we would get a challenge when accessed on edge browser. But for us, it is automatically submitted.

Any specific steps to test the invisible recaptcha?

Answer 1

The way I tackled it:

1. Go to your POST to google.com/recaptcha/api/siteverify

2. Before the response is returned, set the success property in the response to false.

I'm using Guzzle in Laravel (thanks to this example):

$response = $client->post('https://www.google.com/recaptcha/api/siteverify', [
    'query' => [
        'secret' => env('RECAPTCHA_V3_SECRET_KEY'),
        'response' => $value,
        'remoteip' => $_SERVER['REMOTE_ADDR'],
    ]
]);

$body = $response->getBody();

$contents = json_decode($body->getContents());

$contents->success = false;

return $contents;

Answer 2

If you did not implement the code yourself, the first thing to check is the source code, see if reCaptcha is actually loaded. When using a CMS, I search for this line (or similar):

script type='text/javascript' async defer src='https://www.google.com/recaptcha/api.js?onload=renderInvisibleReCaptcha&render=explicit&hl=de-CH'

Answer 3

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.

Answer 4

If you have the luxury of a VPN, switch to a bad rep IP or country or an IP commonly used for P2P. This works for me most of the time.

Answer 5

I found an excellent answer that works as of 2018-08-27.

In Chrome, hit F12 to open the Developer Console. Next, toggle the Device Toolbar, select a device and click Edit... Now, add a new device with the following configuration:

Once you hit save and use the new device, the ReCaptcha should open a modal requiring the user to match images.

Credit: This answer was originally posted on https://www.tectite.com/fmhowto/test-invisible-recaptcha.php?WWWTECTITE=p32j2na5otc4rmtbmfsmf9rci6

Answer 6

Invisible recaptcha check fails if you try to access your page via automated tests (in my case chrome browser) since chrome has a feature to recognize if the browsers is controlled by such software... so try to create easy tests in Python or Java(+webdriver), to see if recaptcha is implemented correctly.