Know the moment it breaks.
And why.
Upcheck watches the things you ship on your schedule — and tells you whether they're up, slow, or down, with the latency breakdown that says which.
Try it — a one-off demo check, simulated right here in your browser.
Most monitors only know up or down
A service that takes four seconds to respond is technically "up" — and quietly losing you users. Upcheck catches the in-between.
Up
Fast and healthy. Green, quiet, and out of your way.
Slow
Reachable but lagging past your threshold — the early warning most tools miss.
Down
Confirmed across several checks, so a single blip never wakes you for nothing.
Unstable, or just slow?
Every check splits the time into connect (DNS + TCP + TLS) and TTFB (the server thinking). One glance tells you whether the network is flaky or the backend is dragging.
Set it once, glance forever
Add a URL
Point Upcheck at any endpoint and set your interval, timeout, and the latency that counts as "slow."
We watch it
Checks run on schedule from the edge, classifying every result and tracking uptime and latency over time.
You get told
A time-sensitive push the moment state changes — and a home-screen widget for the calm in between.
Widgets and push, natively
Built with SwiftUI for the whole Apple ecosystem — not a website in a wrapper.
Your services, verified.
Free for your first few monitors. Upgrade for one-minute checks and unlimited targets.