AlertKick
AlertKick combines server security and uptime monitoring in one product. A lightweight eBPF agent for Linux detects intrusions, file changes, rootkits, and SSH activity (login alerts, failed-attempt auto-blocking, maintenance lock), with detections mapped to MITRE ATT&CK and AI triage that attaches a written verdict to each alert. External monitors check HTTP, TCP, and DNS from outside the network, with response-time thresholds, SSL certificate expiry, and domain expiry from live registry RDAP data. Heartbeat monitors catch silent cron and backup failures, and public status pages keep users informed. Alerts flow through escalation policies and on-call rosters to email, Slack, Telegram, WhatsApp, SMS, and phone calls. Server changes are recorded and attributed for compliance evidence, with PCI DSS and SOX reports on Business plans. Setup is a one-line install per server. The free plan includes 10 uptime monitors and heartbeats - no card, commercial use allowed.
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ManageEngine OpManager
OpManager is a network management tool geared to monitor your entire network. Ensure all devices operate at peak health, performance, and availability. The extensive network monitoring capabilities lets you track performance of switches, routers, LANs, WLCs, IP addresses, and firewalls.
Monitor the finer aspects of your network:
Hardware monitoring enables CPU, memory, and disk monitoring, for efficient. performance of all devices.
Perform seamless faults and alerts management with real-time notifications and detailed logs for quick issue detection and resolution.
Achieve network automation, with workflows enabling automated diagnostics and troubleshooting actions.
Advanced network visualization-including business views, topology maps, heat maps, and customizable dashboards give admins an at-a-glance view of network status.
250+ pre-built reports covering metrics like device performance, network usage, uptime, facilitate capacity planning and improved decision-making.
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Larm
Larm is an uptime monitoring platform that checks websites, APIs, and services from multiple global locations and only alerts you when multiple probes confirm a problem. This multi-location verification eliminates the false positives that plague most monitoring tools.
Larm supports HTTP, TCP, DNS, SSL certificate, and heartbeat/cron monitoring. Every HTTP check captures a full request waterfall (DNS, TCP, TLS, TTFB, transfer), giving you the data you need to debug performance issues, not just know something is down.
Status pages are included on every tier, including the free plan. Pages are rendered as static HTML and served from a CDN, so they stay up even when your infrastructure doesn't. Custom domains, email subscribers, automated incident updates, and component grouping are supported on paid plans.
Alerts can be sent through 13+ channels.
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WatchCron
WatchCron is a cron job monitoring service that helps DevOps teams and developers ensure their scheduled tasks run on time. Create monitoring endpoints, attach them to your cron jobs with a simple HTTP ping, and get instant alerts via email, Slack, or webhook when a job fails, runs late, or doesn't execute at all. WatchCron supports custom schedules, grace periods, team collaboration, and detailed execution history. Designed for reliability-focused teams who need confidence that their background jobs, backups, and automated scripts are running as expected.
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