Performance can be a disruptive competitive advantage

All of us are used to going to travel sites, especially for airline tickets, and waiting a while for the appropriate results to be extracted and displayed to us. I recently saw Google Flight Search for the first time and was astonished by its raw speed — essentially completely instant.

I frequently talk to customers about acceleration solutions, and discuss the business value of performance. Specifically, this is a look at business metrics that measure the success of a website or application — time spent on your site, conversion rate, shopping basket value, page views, ad views, transactions processed, employee productivity, decline in call center volume, and so forth. You compare the money associated with these metrics, against the cost of the solutions, to look at comparative ROI.

The business value of performance is usually tied to industry in a narrow and specific way, because users have a particular set of expectations and needs. For instance, for travel sites, a certain amount of performance is necessary in order to make the site usable, but the long waits for searches are things that users are conditioned to, making their overall performance expectations relatively low. Travel sites usually discover that generalized site responsiveness improve the user experience and cause revenue per site visit to increase — but only up to a certain point, at which point in time it plateaus, as the site has enough responsiveness that users aren’t discouraged from using it, and they’re going to buy what they came to buy.

Google Flight Search proves that you can “break through” the performance ceiling to actually entirely change the user experience, though. This is not the kind of incremental improvement you can achieve through acceleration techniques, though; instead, it’s a core change that affects the thing that is slowest, which is generally the back-end database and business logic, not the network. This can actually be a disruptive competitive advantage.

I typically ask my CDN clients, “What are the factors that make your site slow?” In many cases, they need to do something that goes beyond what edge caching or even network optimization (dynamic acceleration) can achieve. They need to reduce their page weight, or write better pages (and may benefit from front-end optimization techniques), or to improve the back-end responsiveness. Acceleration techniques are often used to band-aid a core problem with performance, just like CDN professional services to make a site cacheable are often used to band-aid a core problem with site structure. At some point in time it becomes more cost-effective to fix the core problem.

Too few businesses design their websites and applications with speed in mind.

Posted on December 1, 2011, in Industry and tagged , , . Bookmark the permalink. 1 Comment.

  1. Henry Steinhauer


    All too true. I heard a recent add that people who are trained in how to use Word and other tools can do things 5x faster than those who just hunt and peck. Just like those that actually know how to type can do things faster than those that have learned how to be fast two finger typers.

    Even if your users are captive users and have no where else to go, they can still appreciate good service.

    We saw that recently when we made a small change in some service times for a major application. Overall the response time improvement was measured in taking the average from 1.5 seconds to 1.2. But at the same time that also allowed more transactions per day.

    We used to see that with TSO response time and later with CICS response time. A small change in response time resulted in more transactions being done per unit of time.

    Some parts of management has a hard time wrapping their head around a .3 second response time change could have that effect. But that is the mystery of averages and the ‘user end-to-end’ experience.


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