Host-Tracker
HostTracker is a 24/7 website monitoring service that helps businesses and webmasters track availability, performance and security from over 300 global locations.
With 13 monitor types, you can check HTTP/S, ping, TCP ports, transactions, web content, APIs, page speed, databases, server resources, SSL and domain expiry, plus Web Risk and DNS blacklist status.
Track response times and page load speeds, receive scheduled reports, and get alerts via email, SMS, voice call, Telegram, Slack, Viber, Discord, web push or webhooks. Alert delays, active hours and maintenance windows help prevent unnecessary notifications.
HostTracker also provides public status pages, a REST API and an MCP server for instant checks through AI assistants and developer tools.
The free plan includes 2 monitors. Paid plans start at $10/month, with a 30-day trial including 100 monitors at 1-minute checks - no credit card required.
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Paessler PRTG
Paessler PRTG is an all-inclusive monitoring software solution developed by Paessler. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine, PRTG optimizes connections and workloads as well as reduces operational costs by avoiding outages while saving time and controlling service level agreements (SLAs). The solution is packed with specialized monitoring features that include flexible alerting, cluster failover solution, distributed monitoring, in-depth reporting, maps and dashboards, and more.
PRTG monitors your entire IT infrastructure. All important technologies are supported:
• SNMP: ready-to-use and custom options
• WMI and Windows Performance Counters
• SSH: for Linux/Unix and macOS systems
• Traffic analysis using flow protocols or packet sniffing
• HTTP requests
• REST APIs returning XML or JSON
• Ping, SQL, and many more
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RealUptime
RealUptime combines four hosted reliability tools in one account: Status for public status pages and incident updates; Monitor for external HTTP, TCP, DNS and heartbeat checks plus server monitoring; Errors for application error tracking; and Outages, a public directory of checks for widely used services. Monitoring checks run from multiple regions, with regional results visible so teams can distinguish location-specific failures. Monitor can collect server metrics through an agent, while alerts and incident workflows help teams respond to service issues. Errors groups application events into issues for investigation. The platform also provides a REST API, command-line interface, Terraform provider, GitHub Actions workflow and MCP server for developer workflows. Free plans are available for Status, Monitor and Errors, and public Outages checks can be viewed without an account; paid plans add usage capacity and features.
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Xitoring
Xitoring is an all-in-one monitoring platform for servers, websites, and status pages. One command installs the Xitogent agent (curl on Linux, MSI on Windows), auto-discovering 30+ services: Nginx, Apache, IIS, MySQL, PostgreSQL, MongoDB, Redis, Docker, RabbitMQ, Kafka, and more.
Monitor CPU, memory, disk I/O, network, and processes, plus uptime checks (HTTP(S), Ping, DNS, TCP, UDP, API, Mail, Heartbeat, Cron) at 1-minute intervals from 15+ global probing nodes. SSL monitoring included.
Alerts via 20+ channels: email, SMS, phone call, WhatsApp, Telegram, Slack, Teams, PagerDuty, Opsgenie, webhooks, and more.
Built-in AIOps answers plain-English questions about your metrics and incidents. The Xitoring MCP server lets Claude, Cursor, or any AI agent read metrics, ack alerts, and manage monitors.
Plus white-label status pages, incident management, REST API, and iOS/Android apps.
Free forever: 2 servers + 8 uptime checks. Paid from $4.99/mo, flat pricing, 30-day trial.
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