IsHumanCadence
Bot detection via keystroke dynamics (no CAPTCHAs)
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HN · launched Feb 9, 2026 · 5 upvotes (top 89%) · 0 views
Niche: bot detection and captcha software · 32 launches, 5 in the last 7 days · Explore this niche →
Category and tags
- Security
- Compliance & governance
- B2B
- AI feature
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 32 launches in bot detection and captcha software →
Could you build this?
Partial Recording keystroke timing events in JavaScript is easy, but reliably classifying bots versus humans without high false positive rates requires sophisticated statistical models and machine learning trained on large datasets.
What it would actually take: A production keystroke biometric system uses a client-side JS library capturing precise keydown/keyup timestamps, dwell time, and flight time distributions, streaming them to a classification backend. The backend employs trained neural networks or gradient boosting models (e.g., XGBoost) calibrated on millions of legitimate and automated keystroke profiles to account for varied typing speeds, layouts, and input devices. The hard part is preventing replay attacks and maintaining low false rejection rates across diverse keyboard hardware and mobile devices.
Discussion
2 comments analyzed.
Competitors mentioned: reCAPTCHA, visual CAPTCHA puzzles
Concerns raised: AI can trivially generate human-like keystroke patterns with prompt engineering, Client-side security is inherently trustless and easily manipulated, JavaScript environment can be compromised to spoof behavioral signals, Only adds friction for motivated attackers, not real prevention, Generative keystrokes are the next frontier for AI to defeat this
Feature requests: Server-side hardening and validation mechanisms, Protection against JavaScript environment manipulation
Competitors
Other products that read as similar to this one : 2303 launches clear the similarity bar, closest 8 shown.
Attention rank: #2126 of 2304 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 102 days after the earliest competitor.
- Mousecrack · hn · 2026-07-30 · 7 upvotes · similarity 0.68
- Captcha to detect bots with a simple question · hn · 2026-04-09 · 5 upvotes · similarity 0.61
- HN Bot Detector · hn · 2026-03-02 · 7 upvotes · similarity 0.60
- Knock-Knock.net · hn · 2026-02-15 · 224 upvotes · similarity 0.55
- Nightcrawler · hn · 2026-08-03 · 120 upvotes · similarity 0.52
- metatrader-5-bot · github · 2026-11-06 · 481 upvotes · similarity 0.51
- AIBanlv-Bot · github · 2026-11-07 · 60 upvotes · similarity 0.51
- A security scanner for AI Agent Skills · hn · 2026-04-10 · 5 upvotes · similarity 0.50
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