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Klaus Enzenhofer

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Top Stories by Klaus Enzenhofer

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 Swift and can now show you how easy it is to add proper tracking to your app in just four steps. Step 1: Add Lib to your Swift Project Once you have a Swift application, including the Mobile iOS Agent into the application project is very simple. First you add the iOS Agent static library and he... (more)

Case Study: Too Fast for the User

I just heard an interesting story from Runtastic, who is one of our Mobile Real User Monitoring customers. Runtastic's main mobile app allows their users to track their sport activities such as running, biking, hiking or skiing. They had a user complaining about too high speed. He didn't actually complain about the performance of the app but instead complained about his average speed during his workout as calculated by the app. After his one hour biking session, the app showed the he covered a distance of 490 km - that would probably be a world record and give him the yellow shir... (more)

You Only Control One-Third of Your Page Load Performance!

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 networ... (more)

Fact Finders: Sorting Out the Truth in Real User Monitoring

On my recent visits to Velocity, WebPerfDay and Apps World in London, Real User Monitoring (RUM) was the hot topic. That triggered my thinking about the differences between vendors. They all promise the same for a varying range of prices - from free to a couple thousand US dollars. What I found out is that there IS a big difference and - depending on what you want to do with RUM - you want to make sure you understand the capabilities and limitations of the available solutions. The false claim of 100% Coverage What all vendors claim to do is capture data from 100% of your users. Wh... (more)

What to Do If A/B Testing Fails to Improve Conversions?

A/B and multivariate testing are often used to improve the conversion funnel. What these tools do is randomly place alternative change images, text or other design elements to gather statistics about how these things affect site visitors. Companies have had great success using such solutions, but sometimes multiple rounds of testing still produce inconclusive data: changing the color or image on their pages did not have a significant impact on the overall conversion rate. Does this mean that there is no way for that business to improve the conversion funnel? In these cases, mark... (more)