CoreRipper watches your sites around the clock and messages you on WhatsApp the moment one stops responding. Built for African teams, alongside 80+ free developer and network tools.
No card needed. Every new account gets full access on a 3-day trial.
Paste the address and pick what to watch. Checks run as often as every 15 minutes.
Email, WhatsApp, or both. Send yourself a test message first so you know the channel works.
When something changes, you hear from us, not from the client whose site it is.
Five checks today. Each one runs on your schedule and alerts you only when the result actually changes, so you are not woken by noise.
Is the site answering, and with the right status code. The check most outages show up in first.
Whether the certificate is valid and matches the hostname, checked continuously rather than once.
How many days are left before it lapses. An expired certificate takes a site down just as hard as a dead server, and it is entirely avoidable.
Whether the host responds at all, and how long it takes.
Whether the records still point where they should. Silent DNS changes are the outage nobody thinks to look for.
An email alert at 2am sits unread with everything else. A WhatsApp message does not.
CoreRipper sends outage alerts straight to WhatsApp, which the large monitoring services still do not offer. You can send yourself a test message before you trust the channel with anything real, and the dashboard tells you whether the channel is connected right now rather than letting you assume it.
Email alerts work the same way, and you can use both at once.
An alert you were never sent is worse than no monitoring, because you think you are covered. So every alert in your history records what actually happened to it, and says so plainly when a message did not get through.
That second line is the one that matters. We would rather tell you a channel failed than quietly let you believe it worked.
As fast as your check interval, which can be as frequent as every 15 minutes. You are alerted when a result changes, not on every single check, so a site that stays up never messages you.
No. Payments are not switched on yet, so everything is free right now. When they are, mobile money is the first method we support.
You still get the email, and the alert history records that WhatsApp did not deliver along with the reason. We never mark an alert as sent when it was not.
You can monitor whether a public site is reachable. Please do not use the network tools against systems you do not own or have permission to test, as set out in our terms.
Yes. The 80+ developer and network tools stay free, and most work without an account at all.