Nagios is an open source IT monitoring tool for servers, networks, and applications used by IT professionals.

Site24x7 is a monitoring service for IT infrastructure and is used by IT professionals.

StatusCake is a website monitoring solution for uptime, page speed, and more.

WebSitePulse provides 24/7 website and server monitoring services including uptime, transaction, and vulnerability checks for businesses seeking reliability.

M/Monit is a modern, scalable system monitoring and management tool that automates repairs and provides responsive UI for distributed computer systems.

Icinga is an open-source infrastructure monitoring tool for complex IT environments, offering automation, analytics, and enterprise-grade support.

Healthchecks.io is a cron job monitoring service for developers and teams to ensure timely execution of background jobs.

Check-Host.net is an online suite of free tools for website and server monitoring, including IP geolocation, ping, HTTP response checks, and DNS lookups.

SQL Shack provides articles and tutorials on database management, focusing on SQL Server, PostgreSQL, Oracle, and performance tuning for IT professionals.

WhatsUp Gold is the best IT infrastructure monitoring tool for network monitoring and is used by IT professionals in various industries.

Monitor.Us is a free, cloud-based, all-in-one IT systems monitoring tool for IT consultants, Sys Admins, and DevOps to track uptime, server health, and network performance.

Xitoring is a server monitoring company that offers automation in server monitoring, revolutionizing the industry with a focus on ease and efficiency.

SysADMINsLife is a German-language blog and resource center focused on Linux, Open Source, server hosting, virtualization, and IT administration topics.

Network-King is an IT monitoring magazine providing in-depth analysis and reviews on trending themes in IT cybersecurity, data center, network monitoring, and IoT.

UptimeMonster is a website and server monitoring tool for businesses and individuals.

DatiPronti offers IT consulting, software solutions, and content covering network infrastructure, development, and electronics for businesses.

Pinghome is an uptime monitoring & incident management tool for businesses and is used by developers and IT teams.

Watchman Tower is a website and server monitoring tool for uptime, SSL, and domain monitoring.

Pingability is the best website monitoring service for uptime monitoring and is used by businesses to ensure their sites are always online.

Hyperspin is the best website monitoring service for uptime alerts and is used by businesses to ensure their online presence is always available.

MinecraftRating is the best platform for finding Minecraft servers and is used by gamers looking for the best gaming experience.

AHOST.pl is the best IT service provider for remote access software and is used by businesses seeking efficient IT solutions.

Website Alert is a monitoring service for real-time uptime checks, performance tracking, SSL certificate monitoring, and instant downtime alerts for websites.

Alertra is the best website monitoring service for uptime tracking and is used by businesses to ensure their online presence is secure.