Identify the corresponding labels
...and other simple tasks. Easy for humans, hard for bots.
Custom tasks also available for enterprise publishers.
BotStop by hCaptcha runs on hCaptcha platform technology, extended to include the features high traffic enterprises need.
Our services are trusted by the largest companies in the world to serve many millions of daily users across tens of millions of sites.
We evaluated a number of CAPTCHA vendors as well as building a system ourselves. In the end, hCaptcha emerged as the best alternative to reCAPTCHA.
Ad networks see your visitors as the product. For us the only product is determining their humanity. Our services meet or exceed GDPR, CCPA, and LGPD requirements, and support initiatives like Privacy Pass. We work hard to balance privacy and security.
This unique focus on privacy means that we can offer zero individual data retention, cookie-free operation, and other contractual privacy guarantees as required while maintaining excellent security. Read more.
Accuracy is in your interest and ours. hCaptcha works to give you real data and let you decide how to use it. Other captchas are provided by Gigantic advertising companies. This means every bot they block may reduce their revenue.
Using the latest machine learning techniques with a focus on privacy lets us exceed the security standards of legacy "record everything forever" strategies without harming security or user privacy.
For Enterprise users, options are available to completely avoid challenges in most scenarios.
Reduce friction by avoiding a challenge entirely for 99.9% of your legitimate traffic while still providing excellent security, thanks to advanced bot models.
Adding hCaptcha takes only minutes and just a few lines of code. The basic API is compatible with reCAPTCHA V2, and it takes only minutes to switch.
You can be up and running with a superior alternative today, and turn on more advanced features as necessary.
Not all problems are the same: getting a single score means it must address your needs to be useful.
With our novel design for Customized Threat Scores, adding your business knowledge allows our models to deliver scores uniquely relevant to your users.
When users must solve a challenge to meet security requirements, why not create tasks pleasant and relevant to the user?
With our simple custom challenge designer, you can launch on-brand challenge content in just a few minutes.
The BotStop by hCaptcha system is uniquely flexible in its design: it can be partially or entirely deployed at the edge of your network if you operate a public cloud or own many datacenters.
This can dramatically reduce off-network traffic and costs while retaining all the benefits of management by our 24/7 on-call staff to meet the strictest SLAs.
Service is a top priority for us. We maintain 24/7 on-call support and offer direct Slack coordination with your engineering integration team and our on-call staff during and after implementation.
We are also committed to actively monitoring and responding to your users' questions across social media, forums, and our in-widget and email support channels. We are accessible and responsive, and treat user satisfaction as a top KPI.