Port Monitor
Port Monitor is an easy tool that does website and server monitoring 24/7 every 60 seconds for free. It records uptime, performance and downtime causes
18 Alternatives To Port Monitor
Avospy
Avospy offers website monitoring, instant alerts, SEO analyzer, spying competition to get precise statistics about error on the website.
Downtime Monkey
Downtime Monkey: website downtime alerts & uptime monitoring worldwide.
Monitis
Monitis specializes in IT monitoring, covering server, website, app monitoring and more within an all-in-one monitoring platform.
OneAPM Browser Insight
OneAPM Browser Insight is a web performance monitoring platform for statistical analysis of site traffic.
PingTurk
PingTurk is a cloud-based platform to monitor website from many locations and behind different networks, reporting on customers experience.
Pingdom
With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Pingometer
Pingometer is a service that monitors the uptime, downtime, and performance of websites. Get 24/7 monitoring - sign up for your FREE account today!
Radar Website Monitor
Radar Website Monitor is a multithreaded website monitoring tool, watching different protocols, including HTTP, SMTP, POP3, FTP, TCP, DNS and Database.
RapidSpike
RapidSpike is an uptime and performance monitoring service for websites and web applications.
Site24x7
Site24x7 offers both free & paid website monitoring services. Monitor websites remotely and receive instant email/sms alerts if your website becomes unavailable. View uptime & performance graphs of your website monitors.
Super Monitoring
Affordable uptime monitoring service for webmasters and website owners. Have your website or server checked every minute and get alerted instantly.
WebGazer
Monitor your website’s availability with WebGazer, review its performance and get instant notifications when your website goes down. No installation required and free plan available.