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Dev tools · March 19, 2019

OnlineOrNot

We alert you before your customers do.

OnlineOrNot launched on March 19, 2019 with 9 votes, #1,141 of 2,994 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 7 years on.

Visit onlineornot.com ↗OnlineOrNot alternatives

What it does

OnlineOrNot is an independent website monitoring service, providing uptime checks, browser checks, and page speed monitoring. There's no time limit on the free tier, and no credit card required.

OnlineOrNot monitors your websites, APIs, and cron jobs, and sends you immediate alerts when things go wrong via Email, SMS, Slack, Telegram, PagerDuty, and more.

OnlineOrNot confirms failures before paging your team, then sends the alert to the tools you already use. Create checks in minutes, then configure methods, headers, request bodies, regions, and alert behavior when you need to. 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. Your customers rely on your products and services. Let them know your real-time status with an automatically updating 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…from onlineornot.com

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