Beyond Uptime. Deep Diagnostics.
UpMonitor was built out of frustration with the status quo. Every other monitoring tool tells you the same thing: "Your site is up. Your site is down." But when something breaks, that's not enough. You need to know why.
Is it a misconfigured SSL certificate? An expired DNS record? A missing X-Frame-Options security header that's putting your users at risk? UpMonitor answers all of these questions - automatically, continuously, and in real time.
What We Monitor
UpMonitor goes far beyond a simple HTTP ping. Every check we run is a deep diagnostic audit:
š SSL Certificate Health
We validate your certificate chain, check expiry dates, and alert you 30 days before renewal - giving you time to act before browsers start showing security warnings to your visitors.
š DNS Resolution
DNS misconfigurations are silent killers. We check A records, CNAME resolution, and propagation consistency across multiple nameservers, helping you catch issues before they cause downtime.
ā” Performance & Availability
We measure Time to First Byte (TTFB), track response time trends, and alert you the moment your site starts degrading - not just when it goes down completely.
š”ļø Security Headers
Missing Content-Security-Policy, Strict-Transport-Security, or X-Content-Type-Options can leave your site vulnerable. We audit all critical security headers and show you exactly what needs fixing.
š HTTP Status & Redirects
We verify your endpoint returns the correct status code, detect unexpected redirects, and ensure your redirect chains are clean and efficient.
Our Philosophy
Value First, Login Second
We believe you should be able to see the quality of a tool before you hand over your email address. That's why our free public audit tool on the homepage requires no sign-up. Run a full diagnostic on any website in seconds - for free, forever.
When you're ready to monitor your own sites continuously, you can create an account. No credit card required to get started.
Scale to Zero
UpMonitor is built on a serverless, event-driven architecture on Google Cloud Platform. We don't run idle servers 24/7. Our infrastructure scales precisely to the demand of your monitoring workload - keeping costs low and reliability high.
Transparency
We operate a public status page so you can always verify UpMonitor's own health. We publish our uptime metrics, incident history, and response times. We hold ourselves to the same standards we help you maintain.
Tech Stack
UpMonitor is built on modern, production-grade infrastructure:
| Layer | Technology |
|---|---|
| Frontend | Angular 21 (SSR) - served at the edge by Cloudflare Workers |
| Backend | Node.js 22 Cloud Functions (2nd Gen) |
| Probe Fleet | Cloud Run probes dispatched from 12 global regions |
| Database | Cloud Firestore |
| Messaging | Google Cloud Pub/Sub |
| Auth | Firebase Authentication |
| Probe Regions | 12 regions across North America, Europe, Asia, Australia, South America, and the Middle East |
Pricing Philosophy
We offer a generous free tier - 3 monitors at 5-minute intervals, 90-day history - because monitoring should be accessible to everyone. Small projects, side hustle, indie hackers: you deserve visibility too.
For teams that need faster checks, more monitors, webhook integrations, and multi-region consensus, our Pro tier is designed to scale with you. See our full Pricing for more details.
The Team
UpMonitor is an independent, founder-led product owned by UpMonitor LTD. Our registered office is located at Bulgaria, Pleven, Byalo More 20 and our Tax ID is BG208736465.
We ship fast, listen to customers, and believe the best products come from solving real problems you've experienced yourself.
Get Started
Ready to see what's really happening with your website?
ā”ļø Run a free audit now - no sign-up required.
Or create a free account to start continuous monitoring in under 2 minutes.