Auguro
Auguro vs UptimeRobot
Both tell you when your site is down. They disagree about what "down" means, and that disagreement is the whole comparison.
Where UptimeRobot is the better answer
UptimeRobot is free for a very long list of endpoints, it has been around since 2010, and if all you need is "did the server answer", it does that well and costs nothing.
Where it leaves you exposed
It watches the response, not the page. A site that returns 200 while rendering a blank screen is green in UptimeRobot for as long as the outage lasts.
GET https://yoursite.com
200 OK · 84ms
All systems operational
Nothing. The page is blank.
Side by side
| UptimeRobot | Auguro | |
|---|---|---|
| Checks the server answered | Yes | Yes |
| Checks the page rendered | No | Yes |
| Catches a JavaScript error that blanks the page | No | Yes |
| Catches your own script or stylesheet failing to load | No | Yes |
| Real browser, no script to write | No | Yes |
| Free tier | 50 monitors | 1 check |
| EU data residency | No | Yes |
So which one
If your site is server-rendered and simple, UptimeRobot is hard to argue with at its price. If your front end is JavaScript, it cannot see the failure mode that actually takes you down.
One check free, forever. No card, no scripts to write.