Web Performance: Talking the Talk | Most Common WebPerf Tech Terms

Web Performance Tech Terms

The web performance industry is filled with words and terms that describe the actions taking place as a website loads. In fact, the process of measuring web performance has been broken down such that each discrete action and measurement has a unique term. This makes it easier for those that are measuring to track individual steps as a page loads and spot areas that need improvement. Across various companies, however, performance tracking terms can vary, so the same phrase can mean slightly different things. Most of the time-based metrics, noted in the list below, are measured in milliseconds.

“Word, words, words….once, I had the gift! I could make love out of words like a potter makes cups out of clay.” – from the movie Shakespeare in Love

Let’s take a look at some of these words and terms in order to establish a definitive meaning for them as they relate to measuring web performance.

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SSL Checker | SSL Certificate Monitoring

Dotcom-Monitor HTTPS monitoring also includes Secure Socket Layer (SSL) Certificate monitoring, which checks SSL certificates for problems and expiration. (try our free instant HTTPS web server performance test)

SSL Certificate monitoring

SSL Certificate Monitoring sends alerts when SSL problems occur or when expiration dates approach.

When a browser visits a website whose web address starts with https, communication with the site is encrypted to help ensure privacy. Before starting the encrypted communication, the website will present the browser with a “certificate” to identify itself.

If the browser cannot verify that the certificate is associated with the website then the user will receive a warning message, such as “This Connection is Untrusted” or “This site’s security certificate is not trusted!”. After receiving this type of message most users will abandon the website. Therefore, an SSL Certificate checker is important for retaining a user’s trust in a website.

Monitor SSL Certificate Problems

Dotcom-Monitor HTTPS monitoring checks the properties of the SSL Certificate to make sure the properties are valid for the website where the SSL certificate is installed. The SSL certificate properties, such as: Certificate Authority (CA), Certificate Common Name (CN), etc… -  should not change. Therefore, if monitoring detects changes in the properties of the SSL certificate, then the SSL certificate may have a problem thereby exposing website users to vulnerabilities.

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2014 Starts with Added Value at Dotcom-Monitor – New Feature Updates

Release 9 Notes – Functionality and Feature Updates

The first of several functionality and feature updates for 2014 have been made to Dotcom-Monitor.


Added Functionality

Mobile Monitoring – BrowserView Monitoring using a Mobile browser on selected Apple Devices including: iPhone4, iPhone5, iPodTouch4, iPodTouch5, iPad1, iPad2, iPad3, iPad4, iPadMini. [Read More]

ActiveSync Mail Monitoring for Microsoft Exchange is now available at; USER PATH = Add New monitoring Device > ServerView Monitoring > ActiveSync Mail Task > Device Set-up / Continue > Add/Edit Task of ActiveSync Task Type

Multiple DNS Options delivers specific types of DNS monitoring within the ServerView, BrowserView, and UserView platforms, including: Device Cached, Non-Cached (ServerView only), Time-to-Live (TTL) Cached, as well as targeted DNS “External DNS Server”; USER PATH = Device > Edit / Continue > Task > DNS Options > DNS Resolve Mode
[Read More]

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New Release: Mobile Browser Monitoring Platform

Mobile Browser Traffic on the Rise

The wave of global web traffic accessed by mobile devices has begun to surge. With that in mind, Dotcom-Monitor has rolled out its mobile browser monitoring of Apple devices, such as iPad, iPhone, iPhone4, iPhone5, iPodTouch4, iPodTouch5, iPad1, iPad2, iPad3, iPad4, iPadMini, etc (Android devices coming soon).

Several data points noting the growing wave of mobile browser usage, notably:

  • Mobile phones account for 17% of global web usage, Aug. 2013, StatCounter
  • U.S. mobile internet usage has doubled between 2009 and 2013, going from one-third to two thirds of cell-phone owning Americans, according to the Pew Internet and American Life Project. (Moreover, according to Pew, mobile is a primary way to access the Internet for 21% of users.)
Mobile Browser Monitoring

Desktop vs Mobile Browser Usage – Jan 2013 - Jan 2014

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Worldwide Monitoring Shows CNN Website Down

Feb. 11, 2014 – Dotcom-Monitor is tracking a CNN website outage on Feb. 11, 2014. Testing using worldwide locations indicated an inability to connect to the CNN server and load the website.

CNN website outage

Testing for the ability to connect to CNN mobile sites also indicated an error condition. Free test of CNN.com using mobile and web browsers here:  http://www.dotcom-monitor.com/WebTools/website-speed-test.aspx

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