Help & Documentation

Okokumo is a family of sovereign, FR/EU-hosted tools. This page covers what each one does, starting with the first: Sentinel, infrastructure monitoring and alerting.

Sentinel — infrastructure monitoring

HTTP(S) checks

Monitor any URL on an interval from 30 seconds to 24 hours. Assert on status code, response latency, body content, or response headers — a check only counts as up when every assertion passes.

Heartbeat / cron monitoring

The reverse of an HTTP check: instead of Sentinel polling you, your scheduled job pings a unique URL after each run. Silence past the configured period plus grace delay is treated as a failure — catches jobs that stop running, not just jobs that fail loudly.

SSL/TLS & domain monitoring

Certificate expiry alerts at 30/14/7/1 days out, invalid-chain detection, and SNI support. Domain expiry and DNS resolution failures are monitored the same way, so a lapsed registration or a broken DNS record surfaces before customers notice.

Multi-region confirmation

Checks run from two independent EU probe regions. A failure only triggers an alert once it's confirmed from multiple probes — a single region's network blip won't page you.

Alert channels

Email, generic signed webhooks, and Slack incoming webhooks. A channel only receives real alerts once it's validated: webhook and Slack validate the moment a test delivery succeeds, email validates once you click the confirmation link sent to that address — this guarantees alerts never go to a destination nobody's confirmed. Channels can be assigned to specific checks, or left as the default that covers every check in your organization.

Dashboard & history

Live status per check, latency and uptime graphs over day/week/month, and a full history of every up/down transition.

Team & roles

Invite teammates by email as owner, admin, or member — manage who can edit checks, billing, and alert channels.

Public API

Every check, its results, and its status are available over a versioned, API-key-authenticated REST API. Full reference: API documentation.

Public status page

A minimal, unauthenticated view of Sentinel's own uptime, independently confirmed by a third-party monitor: Live system status.

Archer — public status badges

Embed a check's status on your own website via a small, self-contained badge — a compact ring with the uptime percentage, or a detailed 30-day history bar — in light or dark, dropped in as an <iframe>. Available on paid plans, from each check's page.

Plans & billing

Free tier covers 5 checks. Paid plans scale up check count and check frequency, billed monthly through Stripe with French-compliant invoicing (VAT handling, sequential numbering, legal mentions).

More help

See also Security & data for hosting and data-protection details. Still stuck? support@okokumo.com.