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Questions tagged [recaptcha]

For questions about the reCAPTCHA service: Designed to protect against spam and abuse by blocking bots while allowing valid users access.

reCAPTCHA is a system originally developed at Carnegie Mellon University that uses CAPTCHA to help digitize the text of books while protecting websites from bots attempting to access restricted areas.

reCAPTCHA requires a user to select images which do or don't include certain items in them. The technology works due the ability of a human being to distinguish subtle visual hints that AI would not yet recognize.

On September 16, 2009, Google acquired reCAPTCHA.

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Setting reCAPTCHA Version 2 set another language other than English

How can I set this in another language, ie:. French I've tried: var RecaptchaOptions = { lang : 'fr', }; Found above here Which does nothing. I couldn't find relevant info under API Reference -> Version 2 on Google Docs for…
neo
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Google reCAPTCHA: How to get user response and validate in the server side?

I am doing a Java (JSP + Servlet) web application (I understand that this question is technology-independent). I hope to use the latest Google reCAPTCHA service. I am playing with a Google reCAPTCHA example found…
curious1
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How does reCAPTCHA 3 know I'm using Selenium/chromedriver?

I'm curious how reCAPTCHA v3 works. Specifically the browser fingerprinting. When I launch an instance of Chrome through Selenium/chromedriver and test against reCAPTCHA 3 (https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php) I always…
Mr J
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How to Verify Google Recaptcha V3 Response?

How to integrate Google reCAPTCHA Version 3 in Client Side and Server Side(php). following code use to display recaptcha but its not working good. How to do this integration.
Karthik
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ReCaptcha v2 client side events

Does ReCaptcha v2 expose any client side events? I am looking specifically to identify when the Captcha response has been returned once the box is ticked, so I can reveal the "Continue" button below. Without this it is possible for the user to…
QFDev
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Force Google Recaptcha Challenge

Is it possible to set some flag in my browser so that I always get the RECAPTHCA image challenges? Sometimes when you click on the "I am not a robot" button, it gives you a pop up challenge with something like "Click all the images which contain a…
Jake
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ReCaptcha not working properly on iPhone

I have a website with a simple contact form. The validation is somewhat minimal because it doesn't go into a database; just an email. The form works as such: There are 5 fields - 4 of which are required. The submit is disabled until the 4 fields…
dgo
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Uncaught ReferenceError: grecaptcha is not defined

I am using recaptcha v2 I am getting the following error occasionally (sometimes i don't get error and sometimes i do get it) Uncaught ReferenceError: grecaptcha is not defined It seems because of the internal http request. that takes some time to…
codeofnode
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How do you set the badge position with reCAPTCHA v3?

I would like to use an inline badge with v3, but there is no documentation on badge position for v3.
Still don't know everything
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Recaptcha V3 error incorrect-captcha-sol randomly

I'm getting incorrect-captcha-sol error code sometime while using Google reCAPTCHA server side verification api. I have integrated google recaptcha validation to some of my apis. To do so, I pass recaptcha token on these api requests from client…
Rahul Bansal
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ReCAPTCHA couldn't find user-provided function: myCallBack

I'm trying to use ReCAPTCHA where I am getting following error. ReCAPTCHA couldn't find user-provided function: myCallBack. How can I solve this issue? var verifyCallback3 = function(response) { if(response!=null){ $("#rss").show(); …
Sheetal Sharma
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How can I process HTML form validation before reCAPTCHA's validation?

I integrated the new hidden reCAPTCHA (v2) framework which by default verifies the user with the click event of the submit button. But this event is triggered before the built-in HTML form validation. I am looking for a way to make it in the…
Julio Guerra
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Recaptcha creates iFrame on page, breaks styling

Recaptcha is adding a "This frame prevents back/forward cache problems in Safari" iFrame to the top of my website (code included below), which is pushing off the styling by 20-30px (approximately). If I set display: none; to the element in Firebug…
Walker
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Implement the new Invisible reCaptcha from Google

I'm building a PHP website where I would like to put a captcha on the login form. I went with Google's new Invisible reCaptcha but I'm having trouble with implementing it (HTML part, the PHP is working). The code I've got now for the "normal"…
L.Johnson
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Recaptcha - Availability in China

We are developing a site that will require the usage of a captcha service. Has anyone successfully use Google Recaptcha for a website for users from Mainland China? Did you have major problems with load-time? Did you experience any reliability…
wacdany
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