Port Monitor Alternatives

Free Website Uptime Monitoring

freemium $5.5 / Monthly (Pro Account)

With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.

paid Free Trial $164.45 / Annually (Starter)

NinjaOne (Formerly NinjaRMM) provides remote monitoring and management software that combines powerful functionality with a fast, modern UI. Easily remediate IT issues, automate common tasks, and support end-users with powerful IT management tools.

Try for free paid Free Trial

Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring

RapidSpike is a reliability, performance and security monitoring service for transactional websites. Using next-generation synthetic monitoring & deeper than ever before data, RapidSpike is for businesses serious about protecting their online revenue

paid Free Trial £25.0 / Monthly

Downtime Monkey: website downtime alerts & uptime monitoring worldwide.

updown.io is a HTTP(S)/TCP/ICMP monitoring service which checks periodically the URL you want and reports back any anomaly.

Pingometer is a service that monitors the uptime, downtime, and performance of websites. Get 24/7 monitoring - sign up for your FREE account today!

PingTurk is a cloud-based platform to monitor website from many locations and behind different networks, reporting on customers experience.

AlertBot provides availability and performance monitoring from an end user perspective.

Netformx helps Cisco partners & Solution Providers deliver multi-vendor IT solutions quickly & effectively while improving profitability & customer success.

Affordable uptime monitoring service for webmasters and website owners. Have your website or server checked every minute and get alerted instantly.

paid Free Trial $5.99 / Monthly (1 check)

Website & Web Application Monitoring

Atwatch provides advanced website monitoring services that include instant alerts when your site is unavailable and detailed report on monitoring stats.