internetVista Monitoring

Avoid traffic and sales loss, be alerted when your website is down! Monitor all of your web services (site, server, database, ...) 24/7 with our multiple check locations...

Commercial Android iPhone iPad

Binary Canary

Website monitoring service that offers a comprehensive free plan with: * escalation levels (if a first-responder contact doesn't acknowledge the downtime, another...

Commercial

WatchMouse

Founded in February 2002, WatchMouse is a global industry leader in self-service website and application performance monitoring. WatchMouse product tests the...

Commercial Web

Uptime Web

UpTimeWeb is a simple, clean, easy to use powerful monitoring system without the “bloat”, that is easy to use thanks to our no-nonsense User Interface. The system itself...

Free Personal Mac OS X Windows Linux Android Web

Monitoshi

Website uptime monitoring. Be notified by email when your site is down. Free and open source, monitor as many URLs as you want. You can hack it and host it yourself or...

Free Open Source Web

HostTracker

Possibility to receive error notifications both to your Email, ICQ, GTalk or cell-phone via SMS; Possibility to receive specified (daily, weekly, monthly, quarterly...

Commercial Web

Howsthe.com

Simple to use website monitoring supporing both HTTP, HTTPS and web serivce monitoring service, with email and sms notificataion. Free Sign up!

Commercial Web

EZ Website Monitoring

EZ Website Monitoring provides keyword rank tracking, uptime monitoring, and error checking for your website.

Freemium Web

Is It Working?

SSL Certificate Monitoring, Cron Script Monitoring, Domain Monitoring.

Freemium Web

100Pulse

Monitor 2 websites with 15 min interval for FREE! Checks your website every 15 minutes. Get trouble alerts by email or sms. Instant alert through SMS, email...

Freemium Web

updown.io

updown.io is a HTTP monitoring solution with a clean UI and a cheap and simple pricing. It notifies you of downtimes by email or SMS and provides a public status page...

Commercial Web

isUp

An intuitive website monitoring tool. You get: 25 monitors, checked every 3 minutes. Totally free!.

Free Web

Monitor Scout

Monitor Scout is a leading website and server monitoring company, with a wide selection of flexible, high quality services. The reliable web-based system monitors your...

Free Windows Linux Web

AppDynamics

The AppDynamics platform gives today’s software-defined businesses the ability to analyze and optimize digital business performance in real time.

Free iPhone

Glowroot

Trace capture for slow requests and errors Continuous profiling (with very handy filtering) Response time breakdown charts Response time percentile charts SQL...

Free Open Source Self-Hosted

MonitorHub

Monitor your website from worldwide locations 24x7 and be the first to know when your website is down. Receive instant alerts via SMS, email & twitter. Detailed...

Commercial Android iPhone Web

Pingrely Website Monitor

24x7 Monitoring Our monitoring is performed with a frequency of 60 seconds, 24 hours, 365 days a year. This way you will be the first to know against any incidence.

Freemium Mac OS X Windows Linux

Uptime

uptime is a remote monitoring application using Node.js, MongoDB, and Twitter Bootstrap.

Free Open Source Web Node.JS MongoDB

AppSignal

Monitoring for Ruby developers. All the metrics and alerts you need to keep your app running smooth. Support for Rails, Rack, Sinatra, Padrino & Grape.

Commercial Mac OS X Windows Linux BSD

Super Monitoring

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

Commercial Web