Uptime, Change, and Response-Time Monitoring for Indie Devs
You don't need an enterprise observability stack. You need to know when your app is down, when a deploy changed something it shouldn't have, and when a page got slower. Site Monitor covers all three.
Start watching free → Explore the live demo
Free plan · 10 URLs · hourly checks · 2 AI summaries/mo · no credit card
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How it works
Add your URLs
App home, API health endpoint, checkout, pricing page — the Free plan covers 10.
Pick what to watch
Uptime, content change detection with an optional CSS selector, expected status code or body text, and response-time thresholds.
Get alerted
Email on every state change; AI summaries of content changes appear in your dashboard. Slack or webhook alerts on paid plans.
You choose which alerts each URL sends — downtime, content changes, slow responses — and we email you when they happen.
What you can track
- App home page and key routes (uptime + content change)
- API health endpoints (status code, response body, response time)
- Checkout and signup pages (did a deploy break them?)
- Pricing and marketing pages (catch accidental rewrites)
- Third-party dependencies your app relies on
Uptime checks miss the bugs that actually cost you
A page that returns 200 OK can still be broken: an empty pricing table, a missing checkout button, an error message rendered inside a working layout. A basic uptime monitor reports all of those as 'up'.
Site Monitor fingerprints the page content on every check, so it catches these silent failures as well as real outages.
Show customers you're up
Publish a public status page at /status/your-slug or embed a status badge in your app footer. It's a quick trust signal for a small product.
Frequently asked questions
How is this different from a basic uptime monitor?
A basic uptime monitor tells you whether a URL responds. Site Monitor checks that too, and also tells you what changed on the page — content, response time, broken links — with AI summaries.
Do I need to install anything?
No. Site Monitor is an external (black-box) monitor — it fetches your public URLs over HTTP. No agent or SDK.
Can I check an API endpoint, not just a web page?
Yes. You can set the HTTP method, headers, and body, then assert an expected status code or text in the response.
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.
How often does Site Monitor check a page?
Free checks every hour. Paid plans check as often as every 5 minutes, and you can set the interval per URL.
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.
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