Apps similar to HostTracker include Uptime Kuma, which is free and open source. Other options are UptimeRobot, Pingdom, Down For Everyone Or Just Me? and Kener. You're spoiled for choice with Website Monitoring Tools like HostTracker: we list more than 100 alternatives for the web, self-hosting, Windows, Linux and iPhone.
Standard uptime monitors like UptimeRobot only tell you if your server is turned on (returning a 200 OK status). But what happens when a bad plugin update breaks your "Add to Cart" button? Your server stays online, your monitor stays green, and you silently lose sales.
Canada
ApiChecker is reliable uptime and performance monitoring for your service. It uses different servers around the world to verify your service/API/WebSite performance and uptime ?! We also provide different way to keep you notified about downtime - it can be SMS , Slack, Email...
Uptimia monitors websites, APIs, servers, SSL certificates and domains from 171 locations worldwide. You get grouped alerts on the channels your team already uses, a public status page, and reports on availability and response time.
Germany
EU
Uptime and error monitoring for websites, APIs, ports, DNS and SSL certificates — instant alerts across 12 channels, grouped error tracking and public status pages, GDPR-compliant.
GermanyEU
sitedownornot.org is a free online tool that is used to check if a website is currently online or offline. We deployed a complex algorithm that analyzes different websites on the internet and checking if it is down or not.
Latency Atlas helps teams monitor websites, APIs, and scheduled jobs with multi-region checks, response time history, status pages, heartbeat monitoring, and an API for automation.
Japan
Notifier monitors your websites, APIs, and servers around the clock and alerts you the moment something goes down. It checks as often as every 30 seconds and sends notifications through email, SMS, voice calls, and Slack so you never miss an outage.
United States
PingRobot is a website monitoring service that alerts you when websites are not operational and when they come back online.
SpainEU
RelayRadar is an operator-focused reliability platform that combines uptime monitoring, incident alerts, and domain intelligence into a single workflow.
United States
Nightlamp provides real-time monitoring and real-engineer diagnostics for no-code platforms like Bubble, Lovable, Webflow, and more. Unlike standard uptime monitors, Nightlamp goes beyond status checks by paging a human engineer to reproduce the issue, identify the root cause...
United States
Native iOS, iPadOS and watchOS app for monitoring and controlling self-hosted homelab services, with no backend, account, or telemetry.
Türkiye
As of May 2015, Browsermob is dead.
"Website monitoring for the masses. From basic free plans to enterprise level solutions, BrowserMob has it all - try our FREE website monitoring performance test.".
