Stop Getting Blindsided
by Website Changes
Track any website. Detect changes instantly. Trigger your systems automatically. One API call to start monitoring.
Free plan — no credit card required
If a webpage changing can cost you money, you need this
Most teams still monitor websites like amateurs. They refresh pages manually. They rely on flaky scrapers. They find out too late.
Manual checking does not scale. Generic scraping breaks.
Our API turns website changes into usable signals.
What it does
Simple, reliable change detection your team can plug into real workflows.
Monitor any public webpage
Track pricing pages, docs, policies, landing pages, listings, job boards, competitor sites, and more.
Detect meaningful changes
Know when text, HTML, links, metadata, or page structure changes. Filter out noise automatically.
Get the change data fast
Receive structured alerts through API responses, webhooks, or your internal systems.
Automate what happens next
Trigger workflows in Slack, email, CRMs, monitoring systems, or internal tools.
Scale without babysitting
Skip the headache of building and maintaining page monitoring yourself. We handle proxies, retries, and normalization.
Developer-first API
Clean REST API with API key auth. Integrate in minutes, not days. Built for machines and humans.
How it works
From setup to getting results — here's exactly what happens, step by step.
Sign up & get your API key
Create a free account with just your email and password. Then generate an API key — this is your personal access pass that lets you create monitors and receive results. It starts with wc_ and is shown only once, so save it somewhere safe.
Tell us what page to watch
Give us the URL of any public webpage you want monitored. Pick a mode — either watch the full page text, or target a specific part of the page using a CSS selector (like just the price or a headline). Then choose how often we check — every hour, every 6 hours, or once a day.
Watches the entire page content. Best for catching any change on the page — pricing, wording, new sections, removed content.
Watches a specific part of the page (using a CSS selector like .price-tag). Best when you only care about one thing.
We check the page on your schedule
Our system automatically visits the page at the interval you set. Every time it checks, it takes a "snapshot" of the content and compares it to the previous version. If something changed, we create an alert with the details. If nothing changed, we just log the check and move on. You don't have to do anything — it runs in the background 24/7.
Get your results — 3 ways
When a change is detected, you'll be notified instantly. Choose how you want to receive your results:
Webhook
Free + ProWe send the change data directly to any URL you provide — like your server, a Slack incoming webhook, Zapier, or Make.com. It arrives automatically within seconds of detection.
Email Alert
Pro onlyGet a clean, readable email the moment something changes. It shows you what page changed, what the old content was, what the new content is, and exactly when it happened. Great for non-technical team members who just want to know "what changed?"
API (Pull Anytime)
Free + ProCheck results yourself whenever you want. Call the API to see the full history — every snapshot, every alert, every diff. Build dashboards, reports, or feed the data into your own tools.
Read your results — here's what they mean
Every result you get (webhook, email, or API) contains the same clear information. Here's how to read it:
No guessing, no digging through raw HTML. You get a clean summary of what changed, the before & after content, and the exact timestamp — ready to act on.
Built for teams where missing a change is expensive
Not just another monitoring tool. Infrastructure for teams that make decisions from web data.
Competitive Intelligence
Know when competitors change pricing, offers, messaging, or product assortments.
Ecommerce
Track availability, price changes, product detail updates, and marketplace listings.
SEO & Marketing
Watch landing pages, title tags, meta descriptions, internal links, and site content.
Compliance & Legal
Monitor terms of service, privacy policies, disclosures, and regulatory pages.
Product & Ops
Track documentation, support pages, partner pages, and status updates.
Developer Tools
Watch API docs, changelogs, and dependency pages for breaking changes.
Why teams switch
Because building this in-house sounds easy until it isn't.
You did not start your company to maintain a brittle page-watching system.
Use the API. Get the outcome. Move on.
Simple, transparent pricing
Start free. Upgrade when you need more.
Free
Perfect for testing and small projects.
- ✓ 3 monitors
- ✓ Daily checks (1440 min interval)
- ✓ Webhook alerts
- ✓ Text & element monitoring
- ✓ API access
Pro
For teams that need real-time intelligence.
- ✓ 50 monitors
- ✓ Hourly checks (60 min interval)
- ✓ Webhook + email alerts
- ✓ Text, element & screenshot monitoring
- ✓ Priority API access
- ✓ Diff history & snapshots
API Reference
Clean REST endpoints. API key auth. JSON in, JSON out.
Monitor website changes before they cost you
A simple API to detect page changes and turn them into action. Set up your first tracked page in minutes.