The Alexa Pro Uptime Monitor is included with the Certified Site Metrics feature in all of our subscription plans. With the Uptime Monitor you can track if your site was down and tie the downtime to traffic trends.
To monitor your site's uptime we have servers in North America, Asia, and Europe. By confirming that your site is down or unreachable from multiple locations worldwide, we can be positive your site is really down and minimize the number of false alarms.