Monitors Overview
FlareWarden offers three types of monitors to give you complete visibility into your websites and services. Each type serves a different purpose.
Auto-Detected by Smart Setup
When you add a website, Smart Setup checks your site, creates its uptime monitor, and suggests content checks and dependency monitors for the content patterns and third-party services it recognizes. You keep the ones you want.
Learn about Smart SetupUptime Monitors
The foundation of website monitoring. Uptime monitors check if your website or API is responding to HTTP requests. They track response times, status codes, and availability.
- HTTP/HTTPS checks
- Response time tracking
- Cross-region validation
Content Monitors
Verify that specific content appears (or doesn't appear) on your pages. Use the Visual Content Picker for point-and-click setup, or configure monitors manually with 7 check types.
- Visual Picker — no code needed
- Presence/Absence/Regex matching
- Element count & numeric range
- Attribute checks & change detection
Dependency Monitors
Track third-party services your application relies on. Monitor APIs like Stripe, Shopify, AWS, or any external service to know when dependencies fail.
- Automatically discovered by Smart Setup
- Third-party API tracking
- Expected response validation
- Severity levels
Additional Monitoring
Beyond the three main monitor types, FlareWarden automatically tracks SSL certificates and DNS records for all your uptime monitors.
SSL Monitoring
Track certificate expiration and changes. Get alerts 30, 14, and 7 days before expiry, held until an auto-renewal is overdue.
DNS Monitoring
Monitor DNS records for changes. Detect unauthorized A, MX, CNAME, and TXT record modifications.
Domain Expiry Reminders Beta
Get emailed 30, 7 and 1 days before a website's domain registration expires, read from the domain's registry.
Check Intervals
All monitors support configurable check intervals
The available intervals depend on your plan:
| Interval | Free | Starter | Business | Growth | Agency |
|---|---|---|---|---|---|
| 30 seconds | - | - | ✓ | ✓ | ✓ |
| 1 minute | - | ✓ | ✓ | ✓ | ✓ |
| 5 minutes | ✓ | ✓ | ✓ | ✓ | ✓ |
| 10 minutes | ✓ | ✓ | ✓ | ✓ | ✓ |
| 30 minutes | ✓ | ✓ | ✓ | ✓ | ✓ |
| 1 hour | ✓ | ✓ | ✓ | ✓ | ✓ |
Cross-Region Validation
Prevent false alarms with geographic verification
When a check fails, FlareWarden asks other regions to re-check it before alerting you. This cuts false alarms from temporary network issues.
- Geographic diversity: Checks run from multiple Fly.io regions worldwide
- Any healthy re-check wins: if any other region sees the site up, the failure is treated as a false alarm and no alert is sent
- Confirmed failures: a failure is confirmed if no re-check succeeds and at least one region confirms it. A region that has not answered within two minutes counts as confirming, unless another region's regular check has seen the site up in that time