Doing DNS Monitoring Right: The AT&T DNS Outage: The AT&T domain name server (DNS) outage of Aug. 15, 2012 exemplifies why a “non-cache based” method for monitoring of websites is important for mission-critical websites. Firstly, a bit of a review. The most common, basic form of website monitoring is conducted using a synthetic browser (not an actual browser), which connects to the target server via an HTTP request process. A number of server-focused processes, such as the availability of the target server, the time it takes to load the HTML file for the website from the server, and the capability to detect keywords within the HTML file are checked via the use of a synthetic browser using an HTTP request process.
August 15, 2012-The ATT DNS outage demonstrates the importance of real-time root cause diagnostics when monitoring Internet services. Intermittent ATT DNS errors were first detected at 5:23 AM PST by Dotcom-Monitor a full hour before AT&T reported the issue. The Dotcom-Monitor Minnesota node noted the issue and captured a diagnostic DNS trace at the time of error. Non-clients of Dotcom-Monitor can use a free DNS trace tool here to test if their domain is affected by selecting Trace Style “DNS”.
This piece of info was sent immediately to Dotcom-Monitor clients whose services were affected by the ATT DNS outage. This diagnostic gave Dotcom-Monitor clients immediate info that pinpointed the root cause of the issue without the need for additional troubleshooting. Dotcom-Monitor clients using ATT DNS made extremely fast, informed decisions, such as moving their DNS to another provider, or taking alternative measures to re-route traffic.
Aug. 15, 2012- Dotcom-Monitor is monitoring a DNS issue involving ATT DNS nameservers and will provide updates as new details emerge.
Dotcom-Monitor Makes Web Performance Testing Faster at Velocity Conference 2012
Santa Clara, CA- Velocity Conference (Booth 512), June 27, 2012 – Dotcom-Monitor launches the world’s fastest scripting tool for automating web performance monitoring of website applications with dynamic page content, UserView Monitoring.
“DevOps needs two things to respond to demands on their time for monitoring of complex web applications. Automation of web performance monitoring scripts that takes minutes – not days – and browser scripts that can step through dynamic page content without breaking,” said CTO Vadim Mazo, “UserView Monitoring gives them both.”
While at Velocity Conference 2012, Dotcom-Monitor is providing expert feedback on website performance and conducting live worldwide website performance tests. Dotcom-Monitor will also be demonstrating its exclusive Picture Match monitoring technology, which quickly automates the most complex monitoring scripts using its proprietary EveryStep Recorder tool.
The ability to quickly set-up effective monitoring is important for the same reason a fast website is important to website users – basically, goal-oriented people value their time. With that in mind, the EveryStep Recorder tool provides the fastest automation of complex website scripting of website monitoring available.