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Keep websites and APIs in view

HTTP monitoring for websites and APIs

Check your websites and APIs. Track availability, response times and certificate expiry in one monitor.

Free to use · view quotas
Your monitor at a glanceExample data

HTTP status

200Available

Response time

142ms
Certificate validity34 days remaining
  • Available
  • Confirmed failure
  • Unknown

What you can monitor

See whether your service responds as expected

Check the response against your expectations and follow changes over time.

HTTP status

See the status returned by your website or API and compare it with the expected response.

Response time

Follow measured response times and recognize changes over time.

Certificate expiry

Check how many days remain before the HTTPS certificate expires.

Availability

Distinguish successful checks, confirmed failures and unknown results.

Understand your data

Understand outages and missing results

See confirmed outages, unknown results and data gaps separately. Check the recorded HTTP status and diagnostics to understand failures.

Read the HTTP monitoring guide
Your monitor at a glanceExample data

HTTP status

200Available

Response time

142ms
Certificate validity34 days remaining
  • Available
  • Confirmed failure
  • Unknown

Your first steps

Set up website monitoring in three steps

Connect your source in three steps.

  1. 01

    Enter a URL

    Enter a public website or API URL and choose the GET or HEAD request method.

  2. 02

    Define check conditions

    Choose how often to check and which response is expected. GET also supports text and JSON checks.

  3. 03

    Configure an alert

    Create an alert rule and choose where notifications should go.

Good to know

Frequently asked questions

Answers and setup guides.

Can I check private network targets?
The checks support public HTTP and HTTPS URLs. Internal network addresses, localhost, cloud metadata addresses and unsupported ports cannot be used.
Does an unknown result mean an outage?
It means the check could not determine whether the service was available. The history marks this separately from a confirmed outage.
Which check intervals are supported?
Checks run every five minutes by default. You can choose an interval from one minute to one hour. The guide explains the available checks.

Your next step

Monitor your website

Enter your URL, choose the expected response and configure an alarm.