Your app can be online and still be broken.
Uptime tells you the server answered. It does not tell you the signup form vanished, the login loops, or checkout stopped working. KeyPages watches the pages you cannot afford to lose.
No test scripts · Real-browser checks · Automatic page setup
You ship a small change.
git pushredesign signup layoutDeployedUptime check
Asks the server one question.
- Server answered
- Certificate valid
- Responded in 47ms
- Never opened the page
All systems operational
No alert sentKey page check
Opens a real browser and tries to sign up.
- Open the pagenorthwind.com/signup
- Find the signup formemail, password, submit
- Fill in an emailblocked
- Create the accountblocked
Signup is broken
Alert sent 40s after deploySame deploy. Same second. Only one of them told you.
200 OK
Every signal is green. No alert fires. Nobody finds out until a customer gives up.
Six ways to lose a customer without losing uptime.
Five questions, asked of every important page.
Every page you protect is checked against the same five areas. KeyPages decides which of the underlying checks apply to that specific page.
Can customers actually get to this page?
Does the page appear the way it is supposed to?
Is the important stuff still on the page?
Did something underneath the page break?
Can this page still do the one job it exists to do?
You add the page. KeyPages figures out what matters.
You paste a URL
Start with a page your app cannot afford to break. That is the whole setup step.
example.app/signupKeyPages reads the page
It renders the live page in a real browser and works out what the page is for.
Detected: Signup pageProtection is already on
The checks that fit this kind of page are selected and running. You did not configure anything.
5 areas · 50+ checksNo test scripts. No selectors. No monitoring setup.
See what broke — and why it matters.
An alert that says something is wrong is not much help. KeyPages gives you the page, what was expected, what it found, and evidence you can hand straight to a developer.
See exactly what the customer saw, not a status code.
The precise mismatch, side by side.
Console context, when console context is what matters.
What changed compared to the last working version of the page.
When it appeared, and whether it is still happening.
An issue a person can act on, not a raw log line.
The page is online and returning HTTP 200, but the signup form was not present in the latest verified render. Customers reaching this page cannot create an account.
Built for people who ship fast.
KeyPages sits outside your builder and watches the live app. However you built it, and however often you change it, the important pages stay under watch.
More context when you need it.
PageSpeed and Lighthouse context surfaces regressions and opportunities.
Search and GSC signals add indexing and visibility context.
What was protected, what changed, what broke, and what recovered.
Protect client apps too.
Agencies use the same page-first protection model across client apps, then use evidence and automatic reports to show what is healthy, what needs attention, and what recovered.
Keep shipping. KeyPages will keep watch.
Start with the one page your app cannot afford to break.