Backed by our customers. Read more

SMS alerts
when keywords
are missing from your page

Monitor your websites, APIs, cron jobs & scheduled tasksGet instant SMS notifications when critical content disappears

No credit card required

Trusted by thousands of businesses

Get SMS alerts when keywords go missing

Receive instant SMS text messages when critical keywords disappear from your webpages. Perfect for high-priority monitoring where immediate attention is required, regardless of whether you're at your computer.

Ideal for monitoring security notices, promotional content deadlines, product availability, or any critical text that must always be present on your website.

SMS alerts ensure you're notified immediately, even when you're away from email or Slack.

How to setup SMS alerts for missing keywords:

Step 1

Add your phone number

Enter your mobile phone number in your OnlineOrNot account settings. We support international numbers worldwide.

Step 2

Configure keyword monitoring

Set up your webpage URL and specify the keyword to monitor. Choose SMS as your notification method for immediate alerts.

Step 3

Get instant text alerts

When keywords disappear from your page, you'll receive an immediate SMS with all the essential details to take action.

Start a free trial

No credit card required.

Frequently asked questions

Discover more

Email alerts when keywords are missing from your webpage

Slack alerts when keywords are missing from your webpage

Discord alerts when keywords are missing from your webpage

PagerDuty alerts when keywords are missing from your webpage

Incident.io alerts when keywords are missing from your webpage

Grafana OnCall alerts when keywords are missing from your webpage

Webhook alerts when keywords are missing from your webpage

Software teams ❤️ OnlineOrNot

OnlineOrNot is built for scale and runs millions of uptime checks every week. Thousands of software teams, including some of the world's leading brands have already made the switch from other uptime monitors.

Uptime Checks last week: 11.5M
Users: 3,889
Detected incidents last week: 615

- 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 H
  Maker 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 Bentoumi
  Founder 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 Bowles
  Founder 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 Lea
  Founder 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 Saxena
  Founder 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 Barclay
  Founder of Cloakist
- OnlineOrNot does the job for me.
  Charles Miller
  Software Architect at Atlassian