Never miss a website update again. Monitor any URL for content changes with our free SHA-256 checksum-based change detector. Get email alerts when pages update.
Start Monitoring Now — Free
Track up to 3 URLs for free. No ads. No signup. Instant setup.
Add Your First URL →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, you get automatic notifications when something updates.
Our monitor uses SHA-256 cryptographic hashing to detect even single-character changes. Every time we fetch your monitored page, we compute a hash of the full page content. If the hash doesn't match the previous one — the page changed.
Why Monitor Websites for Changes?
🏢 Competitive Intelligence
Track competitor pricing pages, new feature announcements, or blog posts.
📰 News & Content Tracking
Monitor news sites, blogs, or documentation pages for new articles or updates.
🛒 Price Monitoring
Watch e-commerce product pages for price drops, stock changes, or new reviews.
⚖️ Compliance & Legal
Track terms of service pages, privacy policies, or regulatory announcements.
🔧 Job Listings
Monitor company career pages for new job openings. Never miss an opportunity.
📊 Research & Data
Track academic papers, government data pages, or research portals for updates.
How Our Website Change Monitor Works
- Add a URL — paste any web page URL you want to track
- Initial snapshot — we fetch the page and compute a SHA-256 hash of its content
- Automatic re-checks — our system re-fetches your URLs every 15 minutes
- Hash comparison — if the new hash differs from the stored one, the page changed
- Alert delivery — Pro users receive instant email notifications with before/after hash details
Features
| Feature | Free | Pro (€7/mo) |
|---|---|---|
| Monitored URLs | 3 | Unlimited |
| Scan frequency | 15 min | 15 min |
| Detection | SHA-256 | SHA-256 |
| Email alerts | ❌ | ✅ Instant |
| Payment | — | BTC/LTC crypto |
FAQ
How often do you check for changes?
Every 15 minutes for all monitored URLs.
Can you detect invisible changes (meta tags, scripts)?
Yes. We hash the full HTML content, including meta tags, scripts, and styles. Any change anywhere in the source triggers detection.
What if the website blocks automated access?
Some sites block automated access. If we can't fetch your URL, we'll log an error. Check that the site allows crawlers before adding it.
Do I need an account?
No. Just add a URL. Pro tier uses your email for alerts.
Ready to Track Website Changes?
Free. No ads. No signup. Start monitoring in seconds.
Start Monitoring Free →Also try our Uptime Monitor for website availability tracking.