Website and API Uptime Monitoring for Developers

Monitoring should be calm. SiteInformant focuses on clean signal, predictable checks, and data you can automate. Track uptime, response time, SSL health, and key metadata without a pile of noisy alerts.

Try the Dashboard Uptime Monitoring API
Built by engineers. Designed for real production workflows.
SiteInformant dashboard showing uptime percentage, response time graphs, and status results.

Why developers use uptime monitoring

Because the first sign of a problem is often a customer message. A quiet monitor lets you catch failures, slowdowns, and SSL issues before they become a fire drill.

Clean signal
Uptime and performance trends you can reason about. Not a wall of noise.
Fast feedback loops
See response-time drift early so you can act before users feel it.
SSL visibility
Expiration dates and issuer details, tracked continuously.
Developer-first automation
Structured JSON data for scripts, reporting, dashboards, and custom workflows.

What you can monitor

Uptime checks
Availability monitoring with clear history.
Response time
Track performance changes, not just failures.
SSL health
Expiration, issuer, TLS protocol metadata.
Network metadata
IP resolution, connectivity results, timing.
Alert quality

Reduce false alarms without hiding real failures

Monitoring is useful only when the notification deserves attention. SiteInformant uses explicit, predictable controls instead of vague automated decisions.

Confirm suspected outages

Before sending a downtime alert, eligible public HTTP and HTTPS endpoints on ports 80 or 443 are checked from a second U.S. cloud region. If confirmation is unavailable, alerting falls back to the primary check after your configured outage delay.

Alert on sustained slowdowns

Choose a response-time threshold, degradation delay, recovery delay, and notification cooldown. Confirmed incidents produce one degradation alert and one recovery alert.

Schedule planned maintenance

Use a one-time maintenance window or select start days, a UTC start time, and a duration for a recurring weekly schedule. Alerts pause while checks and history continue.

Read the practical guide to reducing false positive uptime alerts

Monitor authenticated endpoints

Many developer endpoints require authentication. SiteInformant supports attaching request headers for monitoring protected routes. Values are stored encrypted and are never shown publicly.

  • Authorization
  • X-Api-Key
  • Accept
  • User-Agent
See the API overview Try it in the dashboard
Adding request headers for monitoring authenticated endpoints in SiteInformant.
Add auth headers once. SiteInformant uses them during checks and stores values encrypted.

How it works

1. Add your endpoint
Add a site or API endpoint and choose notification preferences.
2. SiteInformant checks it
Predictable checks with response timing, SSL metadata, and clean history.
3. Use the data
Dashboard for visibility, JSON for automation and reporting.

FAQ

You can monitor both. Many users start with a website, then add health endpoints and protected API routes. If your endpoint needs authentication, you can attach request headers.

SiteInformant supports outage and recovery delays, sustained response-time alerts, notification cooldowns, secondary-region confirmation for eligible public endpoints, and one-time or recurring maintenance windows. You choose which monitor notifications are enabled.

Yes. That is a core use case. Use the dashboard for quick visibility, and the JSON API for automation, reporting and internal tools.

Start monitoring in under a minute

Calm monitoring for developers who want clean signal and clean data.

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