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The Signal.

Thoughts, technical deep dives, and editorial essays on building the future of signup verification.

EngineeringApr 21, 2026

How to Detect Fake Signups in Real Time: A Complete Guide for SaaS Teams

Fake signups are the silent tax on every growing SaaS. Here's how to detect and block them in real time — without adding friction for legitimate users.

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How to Detect Fake Signups in Real Time: A Complete Guide for SaaS Teams
Disposable Email Detection: What Works, What Doesn't, and Why It Matters
EngineeringApr 18, 2026

Disposable Email Detection: What Works, What Doesn't, and Why It Matters

Disposable emails are the #1 indicator of low-intent signups. Here's a practical guide to detecting them — what works in 2026, what doesn't, and how to integrate detection into any stack.

By RohitRead
Bot Signup Prevention: Why CAPTCHA Isn't Enough in 2026
EngineeringApr 15, 2026

Bot Signup Prevention: Why CAPTCHA Isn't Enough in 2026

CAPTCHA solved 2015. Bot farms solved CAPTCHA. Here's how modern SaaS teams actually stop bot signups — without adding friction for real users.

By RohitRead

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