Oh Dear is an uptime monitor from Belgium. It offers status pages and many ways to be informed about problems. It also scans the whole site for broken links or mixed content.

Hyperping is an uptime monitoring and status page service from France. Hyperping offers three different types of uptime checks. The standard API/website monitor using HTTP, Ping (ICMP), or ports, from different countries around the world. Cron monitoring where an alert goes off as soon as a cronjob does not report to Hyperping in a specified time period to check that cronjobs are really still running. And finally, end-to-end browser testing with Puppeteer and Playwright, which can periodically test entire user flows, such as a login process, for proper functionality.

Better uptime is an uptime monitor service. It offers different alert methods and it also supports phone call alerts.

PingPing is an uptime monitoring and statuspage service based in Germany.

Statuspal is a uptime montioring service from Germany. They offer statuspages (public and private) and performance metrics.

Testomato is a Czech uptime monitoring service. The tool can also check for common SEO problems.

MinKit allows you to monitor the uptime of your websites and servers, get alerted, manage incidents and communicate with a status, in a minimalist way.