Website monitoring for your sites and APIs.

Monitor the uptime and response time of any website or API endpoint with HTTP and HTTPS checks. Add a URL, define what a healthy response looks like, and get alerted the instant a check fails. No agent to install on the target.
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Website and API endpoint monitoring
Features

Website monitoring without the setup

Everything you need to watch the uptime and performance of your websites and API endpoints, configured from the UI.

Uptime checks
Monitor any website or API endpoint with HTTP and HTTPS checks. Know the moment it stops responding.
Response time
Track how long each endpoint takes to respond, so you can spot slowdowns before they turn into outages.
Expected status codes
Define the status code or range a healthy endpoint should return. A 500 or an unexpected redirect fails the check.
Flexible intervals
Run checks as often as you need, from every minute up. Tune the frequency per endpoint.
Downtime alerts
Get notified in Slack, Discord, or email the instant a check fails, and again when it recovers.
No agent to install
Add a URL and checks start running. Monitor third-party services and endpoints you do not own, with nothing to deploy.

Frequently Asked Questions

How does website monitoring work with Simple Observability?
Add the URL of a website or API endpoint, choose how often to check it, and define what a healthy response looks like (like an expected status code). Checks run at your chosen interval, and you get alerted the moment a check fails, then again when the endpoint recovers.
Do I need to install an agent to monitor a website?
No. Website monitoring checks run from the platform, so you can monitor any public website or API endpoint, including third-party services you do not own. There is nothing to install on the target.
Can I monitor API endpoints, not just websites?
Yes. Any HTTP or HTTPS endpoint works, whether it serves a web page or returns JSON from an API. Define the expected status code so a 500 or an unexpected response fails the check.
Can I get alerted when my site goes down?
Yes. Route downtime alerts to Slack, Discord, or email the instant a check fails, and receive a recovery notification when the endpoint comes back. Combine that with alert rules to cover both uptime and server health from one place.

Monitor your first endpoint in minutes

Add a URL, define what a healthy response looks like, and get alerted the moment a check fails. No agent to install, no extra tool to configure.

No credit card required
Instant setup