Uptime Monitor — Downtime & SSL Alerts

Your store, watching itself — with a watchdog outside it

OpenMage has no built-in way to tell you the storefront is down, that a page returns 200 while the content is broken, or that your TLS certificate expires next week. You find out from a customer, or from a browser warning. Imavio Uptime turns the store into its own monitor — real HTTP probes through the webserver, incident emails, daily SSL-expiry checks and a premium dashboard — and then adds the one thing a self-hosted monitor structurally cannot do on its own: an external dead-man's-switch that still alerts you when the whole server goes dark.

Real probes, not a fake ping

Each monitor performs a genuine cURL request through your webserver, so you test the same path a customer hits. Per monitor you set the URL, GET or HEAD, the interval (1/5/15/30/60 min), the timeout, the expected status code, whether to follow redirects, an SSL-verification toggle, and a content check — the page must, or must not, contain a given text. That content check is what catches the classic "200 but broken" page a plain ping sails straight past. Responses slower than 80% of the timeout are flagged degraded before they become an outage.

One incident, one email — not a pager storm

The incident lifecycle is deliberately quiet. An incident opens only after N consecutive failures (default 2) and auto-resolves after M consecutive successes (default 1). One open incident per monitor means exactly one "down" email and exactly one "recovered" email, the recovery message carrying the total outage duration. Reminder emails while still down are optional. Every admin page shows a warning banner for as long as an incident is open, so nobody has to be watching the dashboard.

SSL expiry, caught weeks early

Every HTTPS monitor gets a daily TLS handshake that reads the real certificate. Warning emails begin ssl_alert_days_before days ahead (default 14), repeat every three days, and go daily once the certificate has actually expired — so an expired certificate is something you fix on your schedule, not a Monday-morning fire.

The part no local monitor can do: total server death

A monitor that lives on your server has one honest limitation — if the whole server dies, nothing is left running to send the email. Imavio Uptime solves it head-on. With your license key active, the extension sends an "I am alive" pulse to the Imavio platform every 5 minutes. When those pulses stop for max(15, three times the check interval) minutes, imavio.eu sends the "server down" email for you — and a recovery email when the pulses resume. It sends an explicit stop on deactivation so you never get a false alarm, it propagates your local maintenance snooze, and every response is Ed25519-verified. This is the difference between "my monitor went quiet too" and actually being told your store is offline.

Alerts in your brand, delivered through your SMTP

Alert emails are built in the Imavio brand style and sent through OpenMage's core/email_template. That means if Imavio SMTP Manager is installed, your alerts go out over authenticated SMTP automatically — the reliable path, exactly when you most need the email to actually arrive. Recipients are configurable; the fallback is your store's general contact address.

A dashboard you'll actually open

• Per-monitor status pills and a strip of the last 30 checks at a glance.
• Uptime for 24h, 7 days and 30 days, computed live from the raw checks — no separate aggregate table to drift out of sync.
• Response times and SSL days-left per monitor, an incidents grid, and a raw checks grid with CSV export.
• Maintenance snooze (1/4/12/24h) straight from the dashboard: checks keep running, but no new incidents or emails during a planned deploy.
• A cron heartbeat card that turns the whole thing honest — if the OpenMage cron stops beating, the dashboard says so, so a silenced monitor never masquerades as "all green".

Engineered to be quiet and self-maintaining

• Consecutive counters, not a sliding window — robust even when the cron pauses, so a gap in checks does not manufacture a phantom outage.
• Degraded alerting is opt-in, kept off by default, so email stays low-noise.
• Retention crons prune raw checks after 90 days and resolved incidents after 365 (both configurable), and a default monitor for your homepage is created automatically on first run.
• No core table is altered, and the code you may need to inspect stays open: configuration, install scripts, layout and templates ship unencrypted.

Your monitoring never depends on your license

In-store monitoring and its email alerts are perpetual per domain and never gated by license state — an expired license only shows admin notices and pauses updates. The external watchdog naturally uses your license connection to imavio.eu, so it is the one component that follows the license.

Technical requirements

OpenMage LTS 19.x/20.x or Magento CE 1.9.x · PHP 7.2–8.3 with cURL and OpenSSL · the OpenMage cron running every minute · ionCube Loader (free) on the server.