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Klaus Enzenhofer

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Top Stories by Klaus Enzenhofer

You don't agree with that? Have you ever looked at the details of your page load time and analyzed what really impacts Page Load Time? Let me show you with a real life example and let me explain that in most cases you only control 1/3 of the time required to load a page as the rest is consumed by third-party content that you do not have under control. Be Aware of Third-Party Content When analyzing web page load times we can use tools such as dynaTrace, Firebug or PageSpeed. The following two screenshots show timeline views from dynaTrace AJAX Edition. The timelines show all network downloads, rendering activities and JavaScript executions that happen when loading almost exactly the same page. The question is: Where does the huge difference come from? Timeline of web page with and without third-party content showing a difference of 8 seconds in total page load time ... (more)

Third-Party Content Management Applied

Today's web sites are often cluttered up with third-party content that slows down page load and rendering times, hampering user experience. In my first blog post, I discussed how third-party content impacts your website's performance and identified common problems with its integration. Today I want to share the experience I have had as a developer and consultant with the management of third-party content. In the following, I will show you best practices for integrating third-party content and for convincing your business that they will benefit from establishing third-party manage... (more)

The Difference Between Winning and Losing Mobile Shoppers

Mobile performance will make or break retailers this holiday shopping season - so the importance of application performance management (APM) cannot be underestimated. The convergence of Black Friday, Cyber Monday, Hannukah and Christmas shopping combined with a record level of mobile shopping is creating a perfect storm many companies have never weathered before. Over the coming weeks it will be clear which e-commerce players have read our previous blogs and employed a smart APM strategy. That strategy has to include load testing and web performance optimization in the preparation... (more)

How to Monitor Swift/iOS8 Applications for Crashes and Performance Issues

Apple just came out with the new programming language Swift. According to Apple, Swift will make it a lot easier and more fun to develop apps for both iOS and OS X. That's in contrast to the current language, Objective-C, which is somewhat antiquated and considered by many to be difficult to use. Although Swift is easier to use, we're sure that there will be issues like crashes, slow request, errors and so on as we already know it from Objective-C and other languages. We also know that business will ask for usage statistics. This is the reason why we immediately investigated Swif... (more)

Website Traffic Surge By @KEnzenhofer | @DevOpsSummit #APM #DevOps

Website Traffic Surge: Is It Marketing Driven or a Bot Attack? Nobody wants to be in the news with headlines like this, but it happens. I'd like to share an interesting experience I had when meeting on site with an anonymous customer. I've since noticed this same problem a few times, concerning email marketing, conversion impact, nervous operators, CDNs and what happens if there is no communication between the marketing teams and IT operations. Is it a bot/denial of service attack or a "successful" marketing effort that caused this increase in traffic and degradation in response... (more)