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CAPTCHAs, honestly.
Long-form guides on bot protection, written by the team building a privacy-first CAPTCHA. We try to be useful even when the right answer is “don’t use ours.”
Start here
A small set of guides for the decisions most teams actually make first: what to replace, where to place friction, and whether visible or invisible verification is the better fit.
reCAPTCHA vs Playtcha
Google's invisible scoring plus image fallback versus a visible, more intentional verification moment.
CAPTCHA for signup forms
How to stop fake accounts without making registration feel suspicious or exhausting.
CAPTCHA for login forms
How to slow credential stuffing without punishing returning users.
Invisible CAPTCHA vs Playtcha
The broad trade-off between making verification disappear and making it feel clearer when it is visible.
Why use a CAPTCHA?
Who actually needs bot protection, and the failure modes you sign up for either way.
reCAPTCHA alternatives in 2026
Compare hCaptcha, Turnstile, Friendly Captcha, and Playtcha across UX, privacy, weight, and price.
reCAPTCHA vs Playtcha
Google's invisible-plus-fallback model versus a visible privacy-first check designed to feel less hostile.
reCAPTCHA Enterprise vs Playtcha
Google-scale invisible risk scoring versus a smaller privacy-first product built to feel better for real users.
CAPTCHA for signup forms
Stop fake signups without turning account creation into an obstacle course.
CAPTCHA for login forms
Protect sign-in flows from credential stuffing without wrecking UX.
CAPTCHA for contact forms
Reduce contact-form spam without making prospects regret clicking contact.
CAPTCHA for React apps
Protect React form flows without turning the client bundle or UX into a mess.
CAPTCHA for Next.js apps
Client Components, Server Actions, and server-side verify without leaking secrets.
CAPTCHA for single-page apps
Protect SPA flows without pretending a browser-only CAPTCHA is security.
CAPTCHA for mobile web apps
Touch-first bot protection for phone-sized screens, not desktop assumptions shrunk down.
CAPTCHA for in-app signup flows
Reduce fake accounts and free-trial abuse without turning signup into a wall.
CAPTCHA for WebView auth flows
An honest guide to using a web CAPTCHA inside mobile app WebView auth screens.
Turnstile vs Playtcha
When to pick invisible Cloudflare scoring versus a visible privacy-first minigame.
hCaptcha vs Playtcha
Image grids versus a tiny game: which CAPTCHA feels less hostile to real users?
Friendly Captcha vs Playtcha
Two privacy-first CAPTCHA bets: invisible proof-of-work or a short playful game?
Invisible CAPTCHA vs Playtcha
Invisible scoring and proof-of-work versus a visible check your users can actually understand.
Migrate from reCAPTCHA
Replace reCAPTCHA without breaking signup, contact, or checkout flows.
CAPTCHA with Supabase
Server-verify a CAPTCHA token in your Supabase signup flow with Next.js Server Actions.
Privacy-first CAPTCHAs explained
What 'no tracking' means in practice, and why behavioral scoring is the price of a free CAPTCHA.
Accessible CAPTCHA design
Screen reader paths, motor fallbacks, and the honest list of users CAPTCHAs lock out.
The economics of CAPTCHA bypass
What attackers really pay for human farms, ML solvers, and proxy pools.
Why your CAPTCHA shouldn't be 250 KB
Concrete numbers on the bundle tax, Core Web Vitals impact, and what a sane budget looks like.
GDPR-compliant CAPTCHA checklist
Lawful basis, sub-processor list, residency, and the DPA paperwork. The actual checklist.
Failure handling: the fail-open contract
Why Playtcha fails open, the server snippet that makes it true, and when to opt into fail-closed.
Or jump straight in
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