IdeaWell

Project ideas from Hacker News discussions.

A year of fighting scrapers on my 1.5 million-page website

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

1. Scraping & AI data ethics

"And yes, my site gets its data by scraping those public documents. So I'm a scraper writing a blog post complaining about scrapers. I'm aware of how that sounds." – qbane
"AI services currently treat the entire web as their storage and cache layer." – Lalabadie

2. Bot overload & cheap‑hosting economics

"A $5/month VPS won't cut it anymore." – jerf
"Cloudflare offers a free plan that's fantastic." – speak_plainly

3. Bot‑mitigation tactics

"Checks for existence of a specific static cookie, if it does not exist, output a small page that sets the cookie via JS and reloads." – kro

4. Open‑web & compensation concerns

"If the company decides that a certain user should not see the website, the user will not see the website, and no one will know about it, and the user will have no recourse. That is not the open web that I would like to see." – jwr

🚀 Project Ideas

BotFlood Shield

Summary

  • Lightweight JavaScript challenge that converts abusive bot requests into a small proof‑of‑work, reducing server load.
  • Monetization‑ready: Revenue-ready: pay‑per‑solved‑challenge (micro‑crypto payout).

Details

Key Value
Target Audience Solo developers, hobbyist blog owners, small‑scale SaaS operators on cheap VPSes
Core Feature Self‑hosted challenge that only executes for unknown User‑Agents; solved challenges generate a tiny coin that can be cashed out via integrated faucet
Tech Stack Node.js (Express), WebAssembly for fast SHA‑256, optional Redis queue for scaling
Difficulty Medium
Monetization Revenue-ready: pay‑per‑solved‑challenge (micro‑crypto payout)

Notes

  • HN users repeatedly complain about cheap VPSes being overwhelmed; this tool lets them keep sites online without moving to expensive managed services.
  • Provides a “earn while you block” model that turns bot traffic into a tiny revenue stream, addressing the monetization frustration voiced in the thread.

PeerCache: P2P CDN for Static Sites

Summary

  • A decentralized content delivery network built on IPFS/Filecoin that lets site owners pin their static assets and incentivizes nodes to serve them, reducing bot‑induced bandwidth costs on the origin server.
  • Core value: offload bot traffic to a distributed cache, lowering origin load and cost while preserving fast delivery for real users.

Details

Key Value
Target Audience Owners of personal/blog/static sites on cheap VPS or GitHub Pages who suffer from high bot traffic
Core Feature Automatic pinning of site assets to IPFS, token‑based rewards for nodes that serve cached content, optional gateway fallback to origin
Tech Stack IPFS, Filecoin storage smart contracts, Go/JavaScript gateway, simple admin dashboard (React + Node)
Difficulty Medium
Monetization Revenue-ready: 5% fee on node rewards (optional premium gateway)

Notes

  • HN commenters expressed a desire for “private walled gardens” and ways to avoid bot costs (e.g., my take with all the bots - the web is gonna be a bunch of private walled gardens). PeerCache gives a public, decentralized alternative that shares the cost.
  • Provides practical utility: site owners can keep using their existing static host while the P2P layer absorbs repetitive scrapes, addressing the “bandwidth is still not free” concern.

AI Consent Manager & Pay‑Per‑Scrape

Summary

  • Service that lets site owners tag pages with AI‑usage permissions and automatically charges crawlers per request.
  • Monetization‑ready: Revenue-ready: per‑request API fee (Stripe micro‑payment).

Details

Key Value
Target Audience Content publishers, data‑driven blogs, niche forums that want to monetize AI training data
Core Feature Embeds a meta‑tag with consent JSON; AI crawlers must resolve a tiny payment token before fetching content; tokens are vetted via a lightweight proof‑of‑work
Tech Stack Python (FastAPI), PostgreSQL, Stripe Checkout API, Cloudflare Workers for edge token validation
Difficulty High
Monetization Revenue-ready: per‑request API fee (Stripe micro‑payment)

Notes

  • Directly addresses the conflict between scraping for AI and creators’ desire to be compensated, a hot topic in the thread.
  • Gives HN readers a concrete way to enforce “pay for data” without blocking legitimate users.

SimpleBotShield: Lightweight Self‑Hosted Bot Challenge

Summary

  • A drop‑in middleware (nginx module or Docker container) that presents a JavaScript‑cookie challenge or configurable low‑difficulty proof‑of‑work to unknown clients, letting real browsers through while filtering most bots.
  • Core value: easy, low‑overhead bot mitigation for cheap VPS users who find Cloudflare overkill or undesirable.

Details

Key Value
Target Audience Developers running personal sites on $5/mo VPS who want simple bot blocking without third‑party centralization
Core Feature Configurable challenge (JS cookie, PoW, or CAPTCHA) with logging, whitelist for known good bots (Googlebot, Bingbot)
Tech Stack NGINX unit or Go middleware, Dockerfile, optional Redis for challenge state
Difficulty Low
Monetization Hobby

Notes

  • Commenters praised the simplicity of cookie‑based tricks (serve a little JavaScript page that sets a cookie and refreshes) and wanted something that “just works” on a cheap VPS. SimpleBotShield implements that pattern with optional PoW for those who need stronger resistance.
  • Enables discussion: users can tweak difficulty and share rule sets, mirroring the HN thread’s experimentation with Anubis and custom logic.

ZeroCost CDN for Hobby Sites

Summary

  • Free CDN + bot‑filtering layer that caches static assets and drops abusive traffic before it hits the origin.
  • Monetization: Hobby (free tier, optional paid upgrades for higher request volume).

Details

Key Value
Target Audience Personal bloggers, open‑source project sites, small hobbyist developers
Core Feature Edge‑cached static files, automatic bot‑block list via user‑agent regex, optional geo‑blocking UI
Tech Stack Cloudflare Workers (free tier), IPFS for origin distribution, Redis for rate‑limit state
Difficulty Low
Monetization Hobby

Notes

  • Many HN participants lament that $5 VPSes can’t handle bot floods; this CDN offers a no‑cost way to mitigate that while keeping the stack simple.
  • Appeals to the community’s desire for a “no‑frills” solution that still protects against abuse.

CrawlMeter: Bot Traffic Analytics & Monetization

Summary

  • A self‑hosted analytics agent that classifies incoming requests into human, good bot (search engine), AI scraper, or unknown, providing dashboards and optional pay‑per‑crawl billing via crypto or invoicing.
  • Core value: turn unwanted bot traffic into measurable data and a potential revenue stream, addressing the frustration of AI scrapers profiting for free.

Details

Key Value
Target Audience Site owners who want to understand and potentially monetize bot traffic (blogs, data portals, API providers)
Core Feature Real‑time classification using UA, behavior, JS challenge; dashboard with charts; optional billing module to charge scrapers per request
Tech Stack Go collector, PostgreSQL, Grafana dashboard, Stripe/Lightning integration for payments
Difficulty Medium
Monetization Revenue-ready: SaaS plan $9/mo for hosted version; self‑hosted free

Notes

  • The discussion highlighted that AI scrapers “gain data that I provide for free” and the desire to “ωβ pagamento” (pay‑per‑crawl). CrawlMeter gives concrete insight and a path to monetize.
  • HN users love data‑driven tools; providing actionable metrics would spark conversation about bot economics and fair use.

BotDetect Dashboard

Summary

  • Open‑source analytics dashboard that visualizes real‑time bot vs. human traffic ratios and auto‑triggers lightweight blocking rules.
  • Monetization: Revenue-ready: subscription (hosted premium analytics).

Details

Key Value
Target Audience Site owners with static or lightly dynamic pages on low‑cost VPSes
Core Feature Real‑time traffic breakdown, bot‑score per IP, one‑click rule generation (e.g., block IPs with >X bot requests), exportable logs
Tech Stack Go (Gin), SQLite, WebSockets for live updates, Docker for easy deployment
Difficulty Medium
Monetization Revenue-ready: subscription (hosted premium analytics)

Notes

  • Directly solves the “how do I see and react to bot traffic” pain point raised multiple times in the discussion.
  • Provides actionable data without requiring deep expertise, fitting the DIY ethos of many HN users.

DynamicRobots: Adaptive robots.txt Service

Summary

  • A lightweight service (Cloudflare Worker, nginx‑lua script, or standalone Go app) that dynamically generates robots.txt rules based on observed bot behavior, allowing fine‑grained allow/disallow per user‑agent or IP range.
  • Core value: replace static robots.txt with an intelligent, self‑tuning policy that blocks aggressive AI scrapers while keeping search engines happy.

Details

Key Value
Target Audience Webmasters who manually maintain robots.txt and want automated defense against evolving bot patterns
Core Feature Behavior analyzer (request rate, path patterns) → auto‑generated robots.txt; web UI for overrides; plug‑and‑play with common servers
Tech Stack Go (or Rust) analyzer, SQLite for state, optional Cloudflare Worker wrapper
Difficulty Low
Monetization Hobby

Notes

  • Many commenters talked about the ineffectiveness of static robots.txt (AI scrapers have not bothered to bypass it yet) and wished for smarter blocking. DynamicRobots offers exactly that: a bot‑aware, self‑updating policy.
  • Practical utility: reduces need for constant manual tweaking, encourages sharing of rule sets, and aligns with the HN thread’s interest in “build a better service or better technology.”

ScraperPermission Registry

Summary

  • Decentralized registry where websites publish permission tokens that bots must present to access content; tokens can be purchased or earned.
  • Monetization: Revenue-ready: token sale (one‑time purchase or renewal fee).

Details

Key Value
Target Audience Content sites that want to differentiate between authorized scrapers and random bots
Core Feature Publish a signed permission token in robots.txt or a dedicated endpoint; bots must request a token via a simple API; tokens can be bought/renewed for a fee
Tech Stack Rust (Actix‑Web), IPFS for immutable token storage, OAuth2 for token issuance
Difficulty High
Monetization Revenue-ready: token sale (one‑time purchase or renewal fee)

Notes

  • Aligns with the thread’s call for “better technology” and a more controlled way to manage crawler access while still allowing legitimate data reuse.
  • Offers a market‑based solution that could appeal to HN’s interest in innovative, community‑driven economics for the web.

Read Later