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Documentation

Short, accurate pages that match the product as built. Each page shows when it was last changed.

  • Getting started

    From sign-up to your first real observation, a verified alert channel and a status page.

    Updated 2026-10-10

  • Measurement methodology

    How availability, coverage, latency and incidents are computed, and what the numbers do not mean.

    Updated 2026-10-10

  • REST API

    Authentication, scopes, pagination, idempotency, rate limits and error format of /api/v1.

    Updated 2026-10-10

  • Heartbeat monitoring

    Monitor cron jobs, queue workers and backups by having them ping a secret URL.

    Updated 2026-10-10

  • Notifications and routing

    Channels, rules, deduplication, quiet hours, rate limits and escalation.

    Updated 2026-10-10

  • Verifying signed webhooks

    Headers, signature scheme and a verification example for outgoing webhooks.

    Updated 2026-10-10

  • Status pages

    Components, announcements, access control, subscribers and custom domains.

    Updated 2026-10-11

  • Importing monitors from CSV

    Supported formats, validation, deduplication and quota preview.

    Updated 2026-10-10

  • Security model

    Outbound security boundary, probe isolation, tenancy and credential handling for operators and customers.

    Updated 2026-10-10

  • Site health crawls

    What the bounded daily crawl checks, how ownership is verified, and the limits that protect your site.

    Updated 2026-10-10

  • Multi-step API transactions and browser checks

    How sequential API flows and headless browser checks work, what they measure, their limits and their cost model.

    Updated 2026-10-10

  • Real user monitoring

    Core Web Vitals from real visitors: what the script collects, what it never collects, sampling, quotas and how to read the dashboard.

    Updated 2026-10-10

Longer explanations live in the guides.