Recaptcha and Funcaptcha share the same proxy-checking mechanism. We test it on Google servers and our server (kolotibablo.com) and only then transmit the task to our workers.
Testing includes:
- SSL support
- Long-URL support in GET requests
- Anonymity. Headers (like "x-forwarded-for") that include client IPs are not allowed.
- Image transmission support

You can test your proxy using our proxy checker.

Our workers do not have access to your proxies; their apps communicate through our proxy server using task IDs instead of final proxy addresses. Our proxy looks into DB for taskID, retrieves your proxy address, and works with it.

If you’re worried that workers might have access to your proxies, you can check our web and desktop clients for workers and debug/sniff traffic yourself – you won't see any proxy data in the traffic.
Workers' website: https://kolotibablo.com/

1. Simple and common FunCaptcha usage:

document.getElementById('FunCaptcha-Token').value=token;

2. For complicated situations, use the same method as for Recaptchas to understand how Funcaptcha tokens are transmitted. Follow these tutorials to learn more about browser debugging.

Some tokens may be different "surl=https://funcaptcha.com", but they are 100% valid. We run special tests every few minutes to check that our solved tokens are working on a website that we can't name.
If you want surl to match exactly, make sure you are sending values for "funcaptchaApiJSSubdomain" property for FunCaptcha's task types.

Possible reasons:

1. Something is probably wrong with your proxy. Try installing SQUID on your server and try sending the task with its proxy credentials.
Sometimes, custom proxies don't support specific headers or transmit data incorrectly during the solving process.

SQUID installation instructions – follow these steps exactly:

2. Incorrect/missing parameters passed to API. Check out the documentation, maybe you're missing properties like "funcaptchaApiJSSubdomain" or "data." Note that you yourself should make sure that the parameter values are correct – we don't do that for you. If you're having troubles setting them up correctly, check out this tutorial.

We are aware of this, and it's absolutely normal. Funcaptchas give our workers at least 20 screens of puzzles and it takes a long time. You can try to use the same token pre-caching technique as with recaptchas.

Unfortunately not.

Yes, it used to be called Funcaptcha. We can solve it for you with proxy or without proxy.

Please make sure you study all the FAQ section about Funcaptcha.