📡 Free Website Change Monitor
Track any webpage for content changes — SHA-256 checksum detection, email alerts (Pro), 15-minute scan intervals. Monitor competitors, prices, news, job listings, and more.
🔍 Start Monitoring Free →Why Use Our Website Change Monitor?
🔐 SHA-256 Detection
Cryptographic-grade change detection. Even a single character change anywhere in the HTML is caught. No false negatives, no missed updates.
⏱️ 15-Minute Scans
Your monitored pages are checked every 15 minutes automatically. No manual refreshing, no browser tabs to keep open.
📧 Email Alerts (Pro)
Pro tier sends instant email notifications the moment a change is detected. Get the old hash, new hash, and timestamp in your inbox.
🌍 Any Website
Track any publicly accessible URL — competitor pages, news sites, pricing pages, job boards, documentation, government portals, and more.
⚡ Instant Setup
Paste a URL and you're monitoring it. No signup, no email verification, no credit card. It literally takes 5 seconds.
🆓 Free Tier Included
Monitor up to 3 URLs completely free. No ads, no time limit, no hidden fees. Upgrade to Pro for unlimited URLs and email alerts.
How It Works
Paste any webpage URL you want to track
We fetch the page and compute a SHA-256 hash of its full content
Every 15 minutes we re-fetch and compare hashes
Pro users get instant email alerts when anything changes
📋 What to Monitor — Top Use Cases
🏢 Competitive Intelligence
Track competitor pricing pages, new feature announcements, blog posts, and changelogs. Know what your competitors are doing before anyone else.
🛒 Price Monitoring
Watch e-commerce product pages for price drops, stock changes, new reviews, or flash sales. Automate deal hunting.
📰 News & Content
Monitor news sites, industry blogs, documentation pages, and RSS-free sites for new articles and updates.
🔧 Job Listings
Track company career pages for new openings. Never miss an opportunity at your target company.
⚖️ Compliance & Legal
Track terms of service pages, privacy policies, regulatory announcements, and GDPR updates.
📊 Research & Data
Monitor academic papers, government data portals, research publications, and public datasets for updates.
🔄 Free vs Pro Comparison
| Feature | Free | Pro (€7/mo) |
|---|---|---|
| Monitored URLs | 3 | Unlimited |
| Scan frequency | 15 min | 15 min |
| SHA-256 detection | ✅ | ✅ |
| Email alerts | ❌ | ✅ Instant |
| Payment method | — | ₿ BTC Ł LTC |
❓ Frequently Asked Questions
What is a website change monitor?
A website change monitor is a tool that periodically checks a web page and alerts you when its content has changed. Instead of manually refreshing pages all day, you get automatic notifications. Ours uses SHA-256 cryptographic hashing to detect even single-character changes anywhere in the page source.
How often does it check for changes?
Every 15 minutes for all monitored URLs, both free and Pro tiers. You don't need to configure anything — just add the URL and our system handles the rest automatically.
Can it detect invisible changes (meta tags, scripts, JSON)?
Yes. We hash the complete HTML content including meta tags, scripts, styles, JSON-LD, and inline data. Any modification anywhere in the source triggers a change detection. Unlike visual-only comparison tools, we catch everything.
What if the website blocks automated access?
Some sites use Cloudflare bot protection, CAPTCHAs, or IP-based blocking. If we can't fetch your URL, we'll log the error. For best results, monitor sites that allow crawlers. Most regular websites (company pages, blogs, docs) work perfectly.
Do I need an account or to sign up?
No account needed. Just paste a URL and start monitoring. If you upgrade to Pro, we only need your email address for change alerts. No passwords, no KYC, no personal data collection. Pay with crypto and stay anonymous.
How is this different from Visualping or Distill.io?
Unlike cloud-hosted services that store your data on their servers with login requirements and subscriptions, our tool is completely free for basic monitoring. No account, no data collection, no tracking. Pro tier uses crypto payments (BTC/LTC) — no credit card, no platform lock-in. You control your monitoring, not a third party.
⚡ Ready to Start Monitoring?
Set up in 5 seconds. Free for 3 URLs. No signup.
🔍 Add Your First URL →Also check out: Uptime Monitor · DNS Monitor · Domain Health Report
🛠️ More Free Monitoring & SEO Tools
🛡️ Website Change Monitor Pro
Monitor unlimited pages, get instant alerts via email/webhook. Never miss a competitor change.
Monitor More — €9/mo →