Fewer false alarms: every failure is checked again before anyone is told, so a single network hiccup does not send a 3 a.m. alert.
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UptimeRobot alternative
Zinn® Uptime and UptimeRobot compared: free tiers, check intervals, status pages and alert channels.

The short answer
UptimeRobot watches more websites for free and offers more kinds of checks. Zinn® Uptime watches fewer for free, but double-checks every outage before it wakes you, watches your domains for free, and lives in the same account as your hosting.
| Zinn® Uptime | UptimeRobot | |
|---|---|---|
| Free monitors | 3, checked every 5 minutes | 50, checked every 5 minutes[1] |
| Fastest check interval | 1 minute | 15 seconds on their Scale plan[1] |
| Check types | HTTP(S) with keyword | HTTP(S), keyword, ping, port, API, UDP and DNS checks[1] |
| Public status pages | No | 1 on the free plan, more on paid plans[1] |
| SMS alerts | No | SMS and voice-call credits, bought separately[1] |
| Certificate expiry warnings | No | SSL monitoring on paid plans[1] |
| Domain monitoring | Free, unlimited domains | On paid plans: alerts 30, 14 and 7 days before expiry[1] |
Sources
Prices are quoted in the currency each company showed on its own page when we read it, not converted.
Why people choose Zinn® Uptime over UptimeRobot
Domain expiry watching is free on every account, for as many domains as you like — no paid plan needed.
Monitoring sits next to your hosting, domains and billing in one login, instead of another tool and another invoice.
Where they are the better choice
UptimeRobot's free tier watches far more addresses, and its paid plans check more often, from regions you choose, with many more check types and status pages for your customers. If you need ping, port or cron-job monitoring, or a public status page, it is the stronger tool.
Where Zinn® Uptime fits
Zinn® Uptime fits when you want monitoring in the same account and bill as your hosting and domains, every failure confirmed by a second request before anyone is alerted, and alerts to Slack, Telegram or a signed webhook on the free tier as well as paid.
How to switch from UptimeRobot in three steps
Add the same websites
Create a free account and add each address you watch in UptimeRobot. Put a word from the page as expected text so a blank or broken page counts as down, not just an error code.
Connect your alerts
Choose where alerts go — email to everyone on the account, a Slack channel, a Telegram chat or a signed webhook — and send a test so you know it arrives.
Run both for a week, then decide
Keep UptimeRobot running while Zinn® Uptime builds up its own history. When both agree for a week, you can cancel the one you no longer need — nothing here locks you in.
Questions about switching from UptimeRobot
Can I use Zinn® Uptime and UptimeRobot at the same time?
Yes. They check your website independently from the outside, so running both side by side changes nothing on your site. Many people do this for a week before they switch.
Is Zinn® Uptime really free, or is it a trial?
It is free for good, not a trial: 3 websites checked every 5 minutes, with every alert channel and free domain expiry watching. More websites and one-minute checks come in packs of 10 for $9 a month.
Does Zinn® Uptime do everything UptimeRobot does?
No, and the table above says where. Zinn® Uptime does website checks with expected text, confirmed outages and domain watching very well; if you need the extra check types or features marked No, UptimeRobot may suit you better.
More uptime monitoring comparisons
Competitor details were read from each company's own public pricing page on the date shown under the table, and may have changed since. If something here is out of date, tell us and we will correct it.
Host the site with us too
Zinn® Uptime lives in the same account as Zinn Digital® Hosting: one login, one bill, and the sites you host with us sit right beside the ones you watch. Hosting comes with a 99.9% monthly availability guarantee, credited in one click if we miss it.
Monitoring and domain watching are free on every Zinn Digital® account, hosting or not.