Uptime.com website monitoring solutions provide unmatched visibility and availability, empowering engineering, operations and SRE teams to monitor & respond to their most essential services. Simple & intuitive industry leading Enterprise-grade features delivered at a fair price, that are continuously improving.
G2, Sourceforge and TechRadar Pro have recognized us as one of the world’s best uptime monitors for several consecutive years, including this one. Try 100% free.
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The ultimate uptime monitoring service. Get 50 monitors with 5-minute checks completely free. Set up in seconds and stay informed about your website’s health at all times.
Website monitoring: Get instant alerts when your website goes down. Reliable and accurate monitoring helps you fix issues before they affect users and prevent revenue loss.
SSL certificate monitoring: Avoid losing visitors due to expired SSL certificates. Get notified 30 days before expiration so you can renew in time.
Ping and port monitoring: Check if your server is online or if your email service is running on port 465. Monitor any port you need with real-time alerts.
Cron job monitoring: Track scheduled tasks with heartbeat monitoring. We verify if the request arrives on time, making sure server-side jobs and internet-connected devices are running properly.
Status pages: Create up to 100 branded status pages, protect them with a password, and allow subscribers to receive updates.
Stay informed with email, SMS, voice calls, push notifications, or integrations with Slack, Zapier, PagerDuty, Telegram, Discord, Microsoft Teams, Google Chat, and more.
Maintenance windows: Pause monitoring when you schedule downtime to avoid unnecessary alerts
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ZnowPulse
Bring endpoint checks and incident communication into one hosted workspace. ZnowPulse monitors websites, APIs and servers using HTTP/S, TCP, ping, DNS, keyword and certificate checks. Its Nexus Points summarize related monitors so teams can follow the health of a service. The dashboard also supports incident handling, scheduled maintenance and configurable alert destinations. Start free with unlimited monitors checked every five minutes, a 30-day history, one user and one Nexus Point. An annual Pro subscription costs US$59.99 and enables intervals down to ten seconds, team access, public status pages, more Nexus Points, report exports and S3-compatible backups. Explore a prepared sample workspace at the product website. Monitoring intervals describe plan capabilities; they do not guarantee detection times or uptime. ZnowPulse is operated by ZnowSoft.
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Xitoring
Monitoring shouldn't require a dedicated team to run the monitoring. Xitoring consolidates server monitoring, uptime checks, SSL tracking, cron/heartbeat monitoring, and status pages into one platform with one lightweight agent.
Install is a single command (curl on Linux, MSI on Windows). The Xitogent agent auto-detects what's running — Nginx, Apache, IIS, MySQL, PostgreSQL, MongoDB, Redis, Docker, RabbitMQ, Kafka, HAProxy, and 30+ other services — and starts collecting metrics without manual configuration. Uptime checks (HTTP(S), Ping, DNS, TCP, UDP, API, Mail, FTP, Heartbeat, Cron) run at 1-minute intervals from 15+ global probing nodes, so one flaky route doesn't page you at 3 AM.
Alert routing covers 20+ channels, from the usual (email, Slack, Teams, PagerDuty, Opsgenie, webhooks) to the ones your on-call actually answers (SMS, phone call, WhatsApp, Telegram).
The differentiator: Xitoring ships an MCP server. Connect Claude, Cursor, or any MCP-compatible agent and your AI tooling gets the same access as the web panel — read metrics, inspect incidents, ack alerts, create and modify monitors. The built-in AIOps assistant answers plain-English questions ("what changed in the last hour?", "top 5 RAM-hungry hosts this week") against your real telemetry instead of generic advice.
Also included: white-label status pages on your own domain, incident management with root-cause context, REST API, and native iOS/Android apps.
Pricing is flat and public. Free forever for 2 servers and 8 uptime checks; paid from $4.99/month. No per-metric billing, no per-seat surprises, no "contact sales."
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