First monitor
Add an HTTP, ping, TCP, or DNS monitor and watch your first check pass.
Monitor types
| Type | What it checks |
|---|---|
| HTTP / HTTPS | URL availability, status code, response body, keyword, SSL certificate |
| Ping (ICMP) | Host reachability via ICMP ping |
| TCP | Port reachability via a TCP connect, no payload inspection |
| DNS | Whether a DNS record resolves, optionally matching an expected value |
This guide uses HTTP. See Monitors when you need to choose another check type.
Create an HTTP monitor
- In the sidebar, click Monitors.
- Click New monitor and select HTTP / HTTPS.
- Fill in the required fields:
| Field | Value | Why |
|---|---|---|
| Name | Production API | Display label shown in the monitor list and in alerts. |
| URL | https://api.example.com/health | The endpoint the prober requests on every check. |
| Check interval | Keep the suggested value | The form only offers intervals available to this workspace. |
- Select at least one online region.
- Click Run test and review the response.
- Click Create monitor.
The test catches an invalid URL, an unreachable endpoint, and unexpected HTTP behaviour before the monitor is saved. Regular checks start after creation.
Optional: keyword check
If your endpoint can return HTTP 200 with an error body (common with some frameworks), add a keyword check:
- In the Advanced section, find Keyword check.
- Enter a string that must appear in the response body, for example,
"status":"ok". - If the keyword is absent, the check fails even if the HTTP status is 2xx.
Optional: TLS verification
For an HTTPS target, Verify SSL certificate checks the certificate presented during the request. Leave it enabled for production endpoints. Disable it only when you deliberately monitor a service with a self-signed or otherwise untrusted certificate.
The region picker shows the currently online locations available for the workspace. Read Probing regions for result aggregation and the difference between a regional failure and a verified outage.
Verify the monitor is working
Open the monitor detail after its first regular check. Review the latest result and its measured latency. If the monitor is not healthy, open the check result before changing its settings. It contains the failure reported by the prober.
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