Get Price Drop and Back-in-Stock Alerts for Any Product Page
Add the product page and point Site Monitor at the price or the 'Add to cart' button. When the price changes or the item comes back in stock, you get an email straight away.
Start watching free → Explore the live demo
Free plan · 10 URLs · hourly checks · 2 AI summaries/mo · no credit card
Updated
- Availability changed from 'Sold out' to 'In stock — ships in 2 days'
- Price dropped from $1,399 to $1,249
How it works
Add the product URL
Any public product page — from big retailers to small independent stores.
Target the price or stock label
Use a CSS selector on the price element or availability badge so reviews and recommendations don't trigger alerts.
Buy before it's gone
You get an email alert as soon as the price or stock label changes, and the AI summary in your dashboard describes the change.
You choose which alerts each URL sends — downtime, content changes, slow responses — and we email you when they happen.
What you can track
- Price changes on a product page
- 'Sold out' → 'In stock' availability changes
- Limited drops and pre-order pages
- Sale and clearance pages
- Ticket resale and booking availability pages
Works where store alerts don't
Plenty of stores have no 'notify me' button, and the ones that do often send the email hours after the restock. Site Monitor checks the page itself on your schedule.
Because you choose the CSS selector, it works on almost any store layout — not just a handful of supported retailers.
Frequently asked questions
How fast will I hear about a restock?
Free checks every hour. Paid plans check as often as every 5 minutes, and you can set the interval per URL.
Will rotating ads, timestamps, or counters cause false alerts?
Not if you scope the watch. Add a CSS selector (for example #pricing or .event-list) and Site Monitor fingerprints only that element — everything else on the page is ignored. Whitespace-only changes never trigger an alert.
Does it work on pages that load content with JavaScript?
Yes. Site Monitor can render the page in a headless browser before fingerprinting it, so content injected by JavaScript is included in the comparison.
Is Site Monitor free?
Yes. The Free plan covers 10 URLs checked every hour, with 2 AI change summaries a month — no credit card required. Upgrade only if you need faster checks, more URLs, or more AI summaries.
Does it buy the item for me?
No. Site Monitor alerts you so you can buy it yourself — it never logs in, adds to cart, or checks out.
How do alerts reach me?
You choose which alerts each URL sends — downtime, content changes, slow responses — and we email you when they happen, on every plan. Paid plans can also route alerts to Slack or any webhook (Zapier, n8n, Make, a custom bot). You get one alert per change — no alert storms.
Start watching your first page
Start watching free → Explore the live demo
Free plan · 10 URLs · hourly checks · 2 AI summaries/mo · no credit card