AJAX and ContinuousAPM

The new release of dynaTrace AJAX Edition provides Beta support for the Firefox 11 browser enabling you to test the performance of your websites with the latest available Browsers from Mozilla and Microsoft. AJAX Edition 3.6 supports Firefox 10, 11 and Internet Explorer 8, 9. To h... (more)

Whether or not you are a fan of U.S. football - it was really hard to avoid this huge sports event on February 5. In addition to the actual game, it's the Super Bowl commercials that - besides being very expensive to air - usually drive a lot of load on the websites of the compan... (more)

The success of the Web performance movement shows that there is increasing interest and value in fast websites. That faster websites lead to more revenue and reduced costs is a well-proven fact today. So being exceptionally fast is becoming the dogma for developing web applicatio... (more)

Five years ago the OpenAjax Alliance was founded with the intention of providing interoperability between what was quickly becoming a morass of AJAX-based libraries and APIs. Where is it today, and why has it failed to achieve more prominence? I stumbled recently over a nearly f... (more)

Response times are in many – if not in most – cases the basis for performance analysis. When they are within expected boundaries everything is ok. When they get to high we start optimizing our applications. So response times play a central role in performance monitoring and analys... (more)

Last week at Velocity we hosted a Birds of a Feather Session (BoF) and offered the attendees to analyze their web sites using dynaTrace Ajax Edition. Besides finding the typical performance problems (no cache settings, too many images, not minimized content, …) we found several s... (more)

From time to time I access my work emails through Outlook Web Access (OWA) – which works really great on all browsers I run on my laptop (IE, FF, Chrome). Guessing that Microsoft probably optimized OWA for its own browser I thought that I will definitely find JavaScript code tha... (more)

Just in time for the upcoming Webinar with The BonTon Stores, where we talk about the challenges in operating complex WebSphere environments, we had another set of prospects running their applications on WebSphere. Francis Cordon, a colleague of mine, shares some of the screensho... (more)

Last time I explained logical and organizational prerequisites to a successful production level application performance monitoring. I originally wanted to look at the concrete metrics we need on every tier, but was asked how you can correlate data in a distributed environment, so... (more)

In the last week my task was to create stable functional tests for a new eCommerce application. We picked several use cases, e.g.: clicking through the different links, logging in, searching for products and actually buying a product. We needed functional tests that run on both I... (more)

When we get engaged with prospects that are interested in our performance management solution we walk them through a Proof of Concept. We let them install dynaTrace on their own prior to the actual POC. During the POC we ask them to exercise typical use cases on their application... (more)

Recently there was a bigger discussion at dynaTrace around the cost of exceptions. When working with customers we very often find a lot of exceptions they are not aware of. After removing these exceptions, the code runs significantly faster than before. This creates the assumptio... (more)

If you are serious about Web Development then I am sure you are working on Web 2.0 Applications leveraging several JavaScript Frameworks, making XHR calls to the Server to retrieve dynamic content and also include 3rd party content such as Ads or Social Network Plugins. You proba... (more)

With its latest release, dynaTrace updates its Product Suite for Deep Dive, Automated Cross-Browser Web Performance Optimization with two products: dynaTrace AJAX Edition 3.0 is the free standalone tool that has been downloaded by 30k+ users so far supporting both Firefox (3.6, 4.... (more)

One of our clients occasionally runs into the following problem with their web app: They host their B2B web application in their East Coast Data Center with their clients accessing the app from all around the United States. Occasionally they have clients complaining about bad pag... (more)

2010 is over and there has been a lot going on in the application performance space.  We started this project at the beginning of the year inspired by Stoyan Stefanov’s   performance advent calendar of 2009. (There is also one for 2010). Now twelve months later we have our 2010 ... (more)

Alois Reitbauer explained in detail how dynaTrace continuously monitors several thousand URLs and uploads the performance data to the public ShowSlow.com instance. More and more of our dynaTrace AJAX Community Members are taking advantage of this integration in their internal tes... (more)

HTML5 introduces Application Cache, a new feature that enables you to make web apps and sites available offline. The new specification also provides an easy way to prefetch some or all of your web app's assets (HTML files, images, CSS, JavaScript, and so on) while the client is s... (more)

The dynaTrace AJAX Community has been really active lately – with lots of great forum posts and “discoveries”. As the Community Lead I want to update you about the recent activities as there are several topics that should be interesting for everybody that is interested in Web Per... (more)

We are celebrating the first birthday of dynaTrace AJAX Edition with a new version of this deep-dive browser diagnostics tool for Internet Explorer. We just recently reached 20k+ active users and are glad that people like Steve Souders or John Resig endorsed this tool in the last... (more)