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SaaS — synthetic monitoring · 2026

A monitoring platform that keeps European data in Europe

Six monitoring tools most teams buy separately — uptime, API checks, recorded browser flows, visual regression, sitemap scanning and heartbeats — behind one dashboard, one alert engine and one on-call chain. Built and operated by us, hosted entirely in the EU.

Tools in one suite
Six
Pages per full-site scan
500
Fastest check interval
60s
Data residency
EU only

The situation

Small teams running real revenue online are told to assemble their monitoring from four or five subscriptions that do not talk to each other: one for uptime, another for browser tests, another for visual diffs, another for cron heartbeats. Each has its own alert rules, so an incident arrives as four unrelated notifications and nobody knows which one matters. And nearly all of them ship the data to a US cloud, which is an awkward conversation for a European company with a GDPR posture to defend.

What we did

One suite, one alert engine, one on-call chain. Checks run from every minute to every hour and assert on more than a status code: response-time budgets, deep JSON assertions with dot-notation paths, and required or forbidden text on the page — because "200 OK" and "working" are not the same thing. Browser flows are recorded by pointing and clicking at a live screenshot of your own site rather than written in Selenium, and a real Chromium walks the checkout every few minutes, keeping a screenshot of every step. Visual regression compares each run against an approved baseline, because a deploy that silently hides the buy button never fails a status check. Alerts escalate on their own: a warning on first failure, a critical incident when it persists, then up the on-call tiers if nobody reacts. All of it runs on Hetzner in Germany — an architectural decision taken up front, not a compliance addendum bolted on later.

Where it landed

Detectly is live and selling, from €49 a month for a single site to unlimited monitors on the top plan. A new workspace is watching its first page within a minute of signing up, full-site scans cover up to 500 pages, and monitors appear and retire automatically as the customer's sitemap changes. Monitoring data, screenshots and incident history never leave the EU.

What it looks like

The product itself.

Screenshots from the live product, not mockups.

The Detectly home page, showing a production status panel with homepage, checkout flow and orders API
The promise, stated plainly: is your digital business actually working?
A list of monitors with interval, status and latency, one failing on missing page content
Content assertions, not just status codes — this monitor is down because "Add to cart" disappeared.
A recorded checkout smoke test with four steps, each passing, completed in 8.4 seconds
Checkout flows recorded by pointing at your own site, then replayed in a real browser.
A visual regression result showing a baseline and current screenshot with a 14.2 percent difference
A deploy that silently hides the buy button never fails a status check. This catches it.
An incident timeline escalating from warning to critical to tier two, then auto-resolving
Warning, incident, escalation, recovery — the alarm climbs the on-call chain by itself.
Next step

Tell us what is not working.

An hour on a call, no charge and no deck. We will tell you honestly whether this is work we are good at — and if it is not, who to talk to instead.

Reply within
One working day
First call
One hour, free
Notice period
One month, either way
Based in
Copenhagen & Odense