CloakScan

What it does

CloakScan detects when a website shows different content to search engines vs real users — a practice called cloaking that can destroy your rankings overnight. Paste any URL and instantly compare what Googlebot sees vs what real visitors see, with a 0–100 risk score. ✓ No plugins or server access required ✓ Side-by-side content diff (bot vs user) ✓ Scheduled monitoring with email alerts ✓ Full audit trail for client reporting ✓ Free to use — no account required

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  Google Invisible reCAPTCHA2017 · ▲427

  Protects your website from spam and abuse

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  AI Search Visibility Monitor2025 · ▲416

  Your AI search ranking tool—for ChatGPT, Gemini, & Claude.

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  AI Search Crawler CheckSep 2025 · ▲181

  Check if your robots.txt allows ChatGPT, Google Gemini

• CP
  CountermarkAI – Protect your website from AI Bots2025 · countermarkai.com · ▲7

  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…

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  BEE SPY EditorialJan 2026 · ▲6

  Spy on competitor content activity in real-time"

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  AiglebotJul 2026 · aiglebot.me · ▲7

  Track how ChatGPT, Gemini & Perplexity talk about your brand

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  Dograh▲592

  The open source VAPI alternative

  Dev tools · 26d ago · dograh.com

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  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 21d ago · meridiona.com

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  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 12d ago · x1.new

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  Open-Source eInk Bike Computer▲408

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

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  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 30d ago · gtmcofounder.com

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  Nuphos▲380

  The AI-Native DevOps Workspace.

  Dev tools · 25d ago · nuphos.ai

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  Brila▲1,367

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• IB
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  Fathom 3.0▲803

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• BC
  Brutalist Concrete Laptop Stand (2024)▲786

  Life & fun · Apr 2026 · sam-burns.com

• IB
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app