Reliable alerts
when vibe-coding
breaks your product.
No credit card required
Trusted by thousands of businesses
Incidents happen.
Get alerted immediately.
OnlineOrNot detects problems and lets your team know before your customers do.
- Reliable alerts where you need them:
- SMS
- Slack/Discord
- Incident.io/PagerDuty/OpsGenie/Grafana OnCall/Spike
- Webhooks
30-second setup.
Simple to setup,
yet deeply configurable.
You don't have to be an engineer to set it up.
Simple and effective monitoring that lets you sleep a bit better at night.
Also, I just want to thank you for your responsiveness and help.
This is the best uptime monitoring we have seen so far and saved us a ton of time building our own version.
— Engineering manager, SaaS company
- Super-fast checks.
- Check as often as every 30 seconds, and catch the issues that take your website down for less than a minute.
- Configurable HTTP requests.
- You can configure the HTTP method, headers, and body for each check.
- Instant alerts.
- Alerts in the tools you already use: Email, SMS, Slack, Discord, Incident.io, PagerDuty, OpsGenie, Grafana OnCall, Spike, and more.
- No false positives.
- OnlineOrNot runs every check at least twice before sending an alert, with options for even more.
- SSL Monitoring.
- OnlineOrNot will check your SSL certificates for expiration and other issues, and alert you if there's a problem.
- Geo-specific & Multi-location Checks.
- You can choose to run uptime checks from one region, or all of them.
Build trust.
Keep your customers informed
Your customers rely on your products and services. Let them know your real-time status with an automatically updating status page.
- Minimize support load.
- Add your customers as subscribers to your status page, and send consistent incident updates via email.
- Private status pages.
- Share internal status updates with your teammates and internal stakeholders with a private status page.
We pitch our website to investors and influencers all the time. If the website is down, we look like amateurs.
We know our website is online before these important meetings thanks to OnlineOrNot.
— early start-up founder
What makes OnlineOrNot different?
There are hundreds of uptime monitoring tools out there. Believe me, I know. I built OnlineOrNot because none of them felt right.
Some were too complicated, designed for mega-corporations with thousands of employees. Others were too simple, didn't offer the features I needed, or were just plain unreliable.
It turns out thousands of other freelance developers, agencies, founders, and software teams felt the same way.
— Max, the guy who runs OnlineOrNot
- Open to feedback.
- Something in OnlineOrNot not working as expected? Have an idea for a new feature? I want to hear from you!
- Daily releases.
- Almost every feature in OnlineOrNot came from customer feedback. If it doesn't support your use case today, chances are it will soon.
- Well-documented.
- Every person is different - what's intuitive to one person isn't to another. OnlineOrNot documents every feature so that you're not left guessing how it works.
- We'll be here for a while.
- OnlineOrNot is 100% backed by its customers with no plans to raise venture funding, so it is built to last.
- Public API & Open-source CLI.
- Use the public API to integrate OnlineOrNot into your own systems, or use our open-source CLI to check status from your terminal.
- Privacy-first.
- I don't collect any data about you, and I do not track you. I don't even use non-functional cookies - notice how there's no cookie banner.
People ❤️ OnlineOrNot
OnlineOrNot is built for scale and runs millions of uptime checks every week. Thousands of sites, startups and some of the world's leading brands have already made the switch from other uptime monitors.
- Uptime Checks last week
- 10.4M
- Users
- 3,595
- Detected incidents last week
- 9,699
OnlineOrNot has been absolutely fantastic for my bot, Noti. It completely transformed the way I monitor online services.
The real-time notifications keep me in the loop about any downtime, allowing me to take immediate action. If you're looking for a reliable way to monitor your project's status, I highly suggest using OnlineOrNot.
Adam HMaker of Noti
Bet on indie hackers 🚀
I tried @RozenMD's OnlineOrNot uptime monitoring, and for a few days got notifications of 2min down time.
I thought that OnlineOrNot was wrong as Uptime Robot wasn't reporting anything.
Turns out it was the other way around.
Khaled BentoumiFounder of Data to Page
We've been using OnlineOrNot and it has been a life saver.
It, by far, has been one of the most responsive uptime services we've tried and it only gets better and better as time goes on.
Alex BowlesFounder of Casterlabs
I just set up some site aliveness checks for @Archium_io with @RozenMD's OnlineOrNot.
Took me less than five minutes and it was completely self-explanatory, not to mention gorgeous. Seriously good experience.
Great job, Max! 👏👏
Graham LeaFounder of Archium.io
OnlineOrNot by @RozenMD is all one needs
It is easy to set up and very reliable. I have been using it for almost an year now.
Rajat SaxenaFounder of CourseLit
I'm using OnlineOrNot to monitor my @cloakist customers' sites, so I can respond quickly if they stop working
Love it. Super clean interface, very intuitive. Particularly impressed at how it can wait for full page load
Thanks @RozenMD for making this awesome tool!
Louis BarclayFounder of Cloakist
OnlineOrNot does the job for me.
Charles MillerSoftware Architect at Atlassian
in 30 seconds:
No credit card required.