We build the alerts we wish we'd had at our last agency.

Pleenx exists because agency monitoring tools either cost like enterprise observability platforms, or they only check "is the site up" — and 95% of the things that make clients angry aren't binary uptime. They're SSL silently expiring on a Saturday, a domain that didn't auto-renew because a card was rotated, DNS that got "tidied" by a junior, an MX record drift that nobody notices until email starts bouncing.

We picked a narrow problem on purpose. We don't do APM, we don't do log aggregation, we don't install agents on client servers. We probe from outside — the same way the public internet sees the site — every day, every hostname, with three-tier alerting so the noise stays low.

The product is built and run by the two of us. No outside funding, no deferred shutdown clock, no investor pressure to expand into adjacent markets that aren't this one.