Archive for the tag “performance”

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Web Performance Optimization (WPO)

Yesterday I held a talk at the Webmontag in Frankfurt about web performance optimization. According to the prophecy WPO will become an industry like SEO in the near future. Tenni Theurer and Steve Souders began to examine the performance of websites at Yahoo! in 2003, I learned about it in 2006 from Nate Koechley and subsequently blogged about it. […]

Better Foreground Sprites

A while ago I wrote about using CSS Sprites in img tags — Foreground Sprites. Thus you avoid HTTP requests, but the page turns really ugly when CSS is switched off because the sprite image will be displayed in its full size. Now Google’s accessibility specialist T.V. Raman explained their idea of using sprites for foreground images — a much better solution!

@media 2008

I had the chance to visit the @media conference in London again, for the third time. Again it was different than the last times. Perhaps less spectacular, a little less people, no real revelation. There were excellent talks inside the halls, but the best talks happened outside. Like speaking with Nate Koechley about […]

Website Performance Tweaks, Part Two

Nate Koechley presented the research results of the Yahoo! Exceptional Performance Team two weeks ago in London. The traditional focus of performance optimization has been on the backend, i.e. system efficiency. But comparing a number of high profile websites, the Yahoo! team found that frontend performance is responsible for 80-98% of the perceived response time. Therefore doubling the frontend performance gains more than doubling the backend performance. […]

Website Performance Tweaks

In the last six months I became more aware of techniques for optimizing website performance. I learned about memory leaks and JavaScript performance, but what impressed me most was Nate Koechley’s presentation about large scale website performance issues in “Yahoo! vs. Yahoo!” at the @media conference 2006. In the meantime there have been more blog posts about particular aspects of performance optimization, so I wrote a summary. […]