Sites and apps similar to Allarmia include Uptime Kuma, which is free and open source. Other options are Better Stack, UptimeRobot, Tianji and Pingdom. Website Monitoring Tools like Allarmia are a crowded field, with more than 50 alternatives for self-hosting, Windows, Linux, Android and iPhone.
Receive detailed website downtime alerts by phone, SMS, email, or Slack, monitor uptime and performance in real time from global data centers, avoid false positives, create customizable status pages, generate incident management and performance reports.
Ukraine
Uptime monitoring and status pages for indie SaaS and production AI agents (OpenClaw, agent APIs) — setup in minutes, not another observability suite.
PHP Server Monitor is a script that checks whether your websites and servers are up and running. It comes with a web based user interface where you can manage your services and websites, and you can manage users for each server with a mobile number and email address.
United States
Cachet is a simple to use and easy to manage status page system and can be easily installed and used to track third party service letting your users know what's going on.
United Kingdom
United States
Downdetector monitors over 3,000 services in 25 countries including telecommunication outages (internet, phone and TV service), online banking problems, websites that go down and apps that aren’t working.
United States
DomainPulse.io is an advanced service designed to help users easily monitor and manage all their domain registrations in one place.
India
A robust web application for monitoring website uptime, performance, and SSL certificate expiration. Simple Site Monitor provides an easy-to-use dashboard to track the health of your websites in real-time.
Malta
EU
