If you're looking for a scalable and reliable way to keep spammers and abusers off your website while also complying with GDPR, hCaptcha is a great choice. This enterprise-grade AI security platform not only blocks human and bot attacks, but also puts user privacy first. It provides end-to-end security, ultra-low friction, and compliance with privacy regulations around the world, including GDPR, CCPA, and HIPAA.
Another option is Friendly Captcha, which uses sophisticated proof-of-work techniques and risk signals to replace user labeling tasks and ensure GDPR compliance. It generates a unique crypto puzzle for each user's device, solving it automatically in the background, for scalable and reliable performance. Friendly Captcha supports multiple domains and offers several pricing tiers for businesses of all sizes.
If you need a more general-purpose spam protection service, take a look at Akismet. This service uses machine learning and AI to assess user-submitted content in real time, so only legitimate traffic reaches your website. It automates spam filtering so you don't have to spend time and resources on it, and offers a variety of pricing tiers, including support for large enterprises.
Last, DataDome provides bot management and fraud protection with real-time request analysis and an industry-leading false positive rate. It's fully compliant with data privacy regulations around the world and offers detailed insights into blocked threats, making it a good choice for websites, mobile apps and APIs.