nowfound

Alternatives

Products that do what Bot, proxy and fake email detection without captchas does

I've been researching the bot & proxies space for years. I slowly incubated a service to protect public forms, contents and APIs. It recenty reached a few million daily requests and I now dare to bring it to light. Truesign detects bots, proxies/vpns and fake emails, through a single request from the browser, without challenges or user interaction. It can block the request based on rules you choose, or grant a token with encrypted information about the visitor for you to decide. I created a few pages to showcase how it works: - https:/demo.truesign.ai/protected-form : a form…

  1. 1

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

  2. 2
    Danger119

    Catch fake details, block throwaway emails, spot problem IPs

    2024

  3. 3
    Truelink101

    Real-time Mobile Security with AI & Local VPN – Stay Secure

    2025

  4. 4
    adCAPTCHA148

    Secure your site, elevate your brand, boost ad revenue

    2024

  5. 5
    Checker124

    Detect fake signups in under 200ms with an easy-to-use API

    2025

  6. 6
    Shieldy126

    A zero-config Telegram bot that fights spam in chats

    2018

  7. 7

    Fake SMTP. Send Test Emails without spamming real customers

    2014

  8. 8
    Detectly112

    Sniff out AI slop

    2025

  9. 9

    Strong CDN security without gatekeeping

    Nov 2025

  10. 10

    Spam detection in the physical world

    2017

  11. 11

    Send and receive emails anonymously

    2024

  12. 12

    Real-time form protection against bad emails

    2024

  13. 13
    CtrlAI104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026

  14. 14

    Simple email validation API for a $39 lifetime license

    2021

  15. 15EE
  16. 16FP

    2016 · proxycheck.io

  17. 17

    App to detect fake accounts and impersonation threats

    Oct 2025

  18. 18

    Stop Free Trial Abuse with Advanced Email Verification

    2025

  19. 19

    Cleanmails - Unlimited email verification

    Jan 2026

  20. 20

    Block fake & disposable emails before they hit your DB

    8d ago · mailgate.netlify.app

  21. 21CP

    Hi HN, I built CountermarkAI, a lightweight anti-scraping & bot-detection tool for content creators and website owners. It’s designed to help protect your work from unauthorized scraping and AI training, that repurposed your work without permission. How It Works: Use Hashtag – Creators add a unique hashtag to their content as a declaration of ownership. Protect Website – For those running your own sites, simply add a small snippet to your . The protect.js script works asynchronously by sending metadata from every page load back to our servers, logging requests, and flagging known AI-training…

    2025 · countermarkai.com

  22. 22CH

    There is a growing number of companies offering anti-bot protection SaaS to protect websites from scraping by automated bots based on Puppeteer/Selenium. Most of them rely on browser properties such as headers, javascript properties (window., navigator.), behavior analysis, to build device/user fingerprints and match it against a database of "whitelisted" fingerprints (typical user behavior/settings/device props etc). For the past few months, together with two other devs I have worked on a customized Puppeteer/Playwright scraping backend. It's essentially a drop-in…

    2021

  23. 23

    LeakLake🔒Monitors AI chats, detects leaks, and alerts you⚠️

    Dec 2025

  24. 24IW

    It's inspired by this comment I made: https://news.ycombinator.com/item?id=26599746. I actually saw several comments with HTTP URL posted, and that was the only one I bothered to comment on. So I thought that this is something better suited for bots than human. I hacked this together over yesterday and today: https://github.com/fishy/https-bot. Basically it uses the Firebase API (https://github.com/HackerNews/API) to find comments with HTTP URLs in them, try the HTTPS version, compare the contents, post back a comment if the contents are…

    2021

Ranked by how close each launch is in meaning, then by votes. Refine with a description →