Website downtime alerts and website monitoring worldwide. With the free plan you can monitor up to 60 websites every 3 minutes.

Powerful Website Monitoring & Performance Testing Tools

Uptime Doctor is a leading provider of website monitoring services. Our enterprise-grade infrastructure continuously monitors websites on six continents, looking for the first sign of trouble, 24 hours a day, 7 days a week, 365 days a year.

Agent Slug is a little creature that would be happy to monitor your website. It can monitor a website’s uptime and test a whole website by looking for dead links.

A new, powerful monitoring tool. Keep track of your servers performance and website uptime with our easy to use monitoring platform.

Uptime and performance monitoring with detailed reporting, flexible alerting and more. Increase customer retention and improve SEO with a performant and highly available website, application, or API.

Combining the power of data visualization with modern tooling, Treo helps you build fast websites.

Our highly available monitoring system periodically checks your online services and sends you immediate notification when a problem is detected. Catch issues before they become incidents!

StatusCast provides a unified communications cloud based platform that allows IT to easily communicate up-time status and scheduled maintenance messages to its end-users with a powerful application status page.

Arcturus Technologies is a US-based application performance monitoring company. Our product, Applicare is an application performance management (APM) solution that not only monitors but also improves your enterprise application’s performance, stability and availability.