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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)

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)

With Confidence Through the Holiday Season: Manage Success in Production

In our last two articles, we discussed what we have learned from last year's holiday season as well as things that we can do in the preparation phase for this year's upcoming event. In this blog we show you those dashboards and data points you need throughout the holiday season to make it a success. The top goal for eCommerce sites is to ensure high conversion rates as this converts into business. IT's responsibility is to ensure that consumers can use the eCommerce site in an "enjoyable" way. But there is much more than measuring the UpTime or Response Time of your services. The ... (more)

Don’t Miss 50% of Your Paying Customers on Their Mobile Devices

"We expect that the revenue made via our mobile apps will cross the 50% mark within this year!" Most of our eCommerce customers are starting to say this to us. These customers have driven their businesses to the web and have successfully applied Real User Monitoring (RUM) for web. They have found and fixed many of the common performance problems described in Top 8 Performance Landmines, 5 Steps to improve eCommerce Performance and What if A/B Testing fails to improve conversions. As these customers start seeing an increase in revenue from mobile they have to extend their RUM cap... (more)