There are many alternatives to Port Monitor as a web app and since it's discontinued a lot of people are looking for a replacement. The best Online alternative is UptimeRobot, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Port Monitor and loads of them are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to Port Monitor are Pingdom, StatusCake, HetrixTools and Site24x7.
Free real-time monitoring for 50 sites every 5 minutes. Custom alerts through email, SMS, calls, and apps like Slack, PagerDuty, and more. Use status pages and mobile apps for easy management.
Tracks uptime, downtime, and page speed with synthetic and real user monitoring, simulates critical flows, analyzes visitor data by location, device, and browser, sends instant alerts, and provides analytics and reporting to troubleshoot and optimize sites.
Provides uptime, performance, and page speed monitoring for up to 10 websites. Offers customizable alerts by email, SMS, or third-party apps, root cause analysis, mobile support, server and SSL checks, plus a free plan with detailed reports for diagnostics.
HetrixTools offers minute-by-minute global uptime monitoring with 15 free monitors, blacklist alerts for IPs and domains, and server resource tracking. Features a user-friendly design, public uptime pages, white label reports, and continuous updates for enhanced functionality.
![(dark mode) Server Resource Monitoring [1]](https://img.alternativeto.net/s/618x394/avif/hetrixtools_672860_full.png)
Website & Web Application Monitoring
Dotcom-Monitor instantly alerts you when your website has problems. Detailed diagnostics enable you to take quick corrective action and see troubling trends, bottlenecks and intermittent issues clearly. We monitor externally, from the end.
Receive detailed website downtime alerts by phone, SMS, email, or Slack, monitor uptime and performance in real time from global data centers, avoid false positives, create customizable status pages, generate incident management and performance reports.
SaaS monitoring tool for linux servers and websites. Think up-time robot but with more features. You can monitor your linux hosts, windows hosts under development.
Server monitoring software for physical, virtual, and cloud-based IT. They also do email monitoring, application monitoring. The system is used to provide insight into server up-time and reduce outages.
Monitoring availability and performance of websites & web applications. Checking uptime, content, testing forms & transactions, measuring page loading speed, watching for domain and SSL certificate expiration.
Proactively monitor your websites and online services. Receive immediate notification when a problem is detected so you can quickly resolve the root cause and prevent potential escalation.
You can monitor up to 5 URLs with 1-minute monitoring interval, for FREE!.
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