I've been using Google ReCAPTCHA v2 for my sign-up and login processes, but I'm feeling a bit lost with v3. I understand it has a default threshold value of 0.5 in better-auth, but I'm not sure if that's ideal. How do you set your own threshold, and what should I do when a request doesn't pass? Is it advisable to show the v2 challenge as a backup?
3 Answers
If you’re tired of figuring out the best threshold for ReCAPTCHA, consider switching to Cloudflare Turnstile. It's more user-friendly since it adapts the challenge based on the user’s risk profile without the need for complex score management.
ReCAPTCHA v3 operates differently compared to v2—it's less intrusive but can feel a bit sneaky. A threshold of 0.5 is a good middle ground. You might want to go stricter (like 0.7 or 0.9) to avoid false positives, or looser (down to 0.3) if you’re okay with catching a few more bots. If someone fails, showing the v2 challenge as a fallback option is common and usually helps legit users prove they’re human by solving a quick puzzle.
You're definitely not alone in struggling with v3 thresholds! The challenge often lies in balancing security without shutting out real users. If you want a smoother experience, try Friendly Captcha, which adjusts the difficulty of puzzles based on user activity, plus it's privacy compliant. By the way, do you have any concerns regarding GDPR or CCPA compliance?

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