Blog

Threat models and trade-offs, written plainly.

Why Everyone Is Leaving reCAPTCHA in 2026

Three pressures pushing sites off reCAPTCHA: privacy regulation, accuracy parity, and the rise of free privacy-friendly alternatives.

The Economics of CAPTCHA Solving Services in 2026

How much it actually costs a spammer to solve a thousand reCAPTCHAs, and why that number matters for picking a CAPTCHA.

Self-Host ALTCHA on Your Form in 30 Minutes

Step-by-step setup of the open-source proof-of-work CAPTCHA from scratch , widget, server library, and verification flow.

Cloudflare Turnstile vs hCaptcha Publisher Tier

Two free CAPTCHA options. One sells your visitors' labeling work. The other doesn't.

CAPTCHA and GDPR: 2026 State of Play

Which CAPTCHAs are safe to deploy in the EU without a consent banner, which require disclosure, and which need active consent. May 2026 update.