Getting to the Core of Website Uptime – Part 1

Website Uptime isn’t a Condition, it’s a Calculation

Central to service level agreement (SLA) reports is the concept of website “uptime.” However, what exactly is uptime? Website uptime, in the recent past was often narrowly defined as the working vs. non-working condition of a web server, ie web server uptime. More recently, we have worked with many organizations that are carefully defining the details of website uptime vs. downtime, by taking into account variables like network uptime, server uptime, web application uptime, or website uptime, has become critical.

Vimeo Website Down – Dotcom-Monitor Verified Vimeo Website Outage

Vimeo Website Down – At approximately 1:30pm CST on 01/16/2013 Dotcom-Monitor began sending alerts to its clients regarding Vimeo webpage elements timing out. Vimeo, is a U.S.-based video-sharing website on which users can upload, share and view videos. Dotcom-Monitor testing verified intermittent connection Vimeo outages occurring from worldwide locations. Dotcom-Monitor captured a video of the Vimeo outage homepage error (note the 5-second domain name server (DNS) load time) using its UserView Monitoring – Video Capture Technology.

Case Study: Black Friday Website Outages, Downtime, Average Page Speed

Dotcom-Monitor recently chose 20 midsized online companies to monitor for one week from those ranked 500-600 in the Internet Retailer 2011 ranking. We focused our monitoring on a demographic that encompasses what is considered a mid-size company, not large enough to have inexhaustible budgets, and just large enough to begin considering ways to optimize web site performance. By testing their websites at a 15-minute frequency from nine North American monitoring locations for seven days using a non-caching, Internet Explorer browser we were able to pinpoint potential areas to improve and issues to avoid.