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Zoompf's Web Performance Blog

The Many Kinds of SPOF

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If there is one good thing about disasters it is that they tend to raise awareness and increase preparedness. For example, if I hear about a house fire, I always go and check the batteries in my smoke detectors. If a bad storm hits somewhere, I always go and test the flashlights in the house [...]

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Performance Implications of Opera’s Switch to WebKit

Opera recently announced that it was dropping its Presto layout engine and Carakan JavaScript engine and adopting WebKit and V8. Actually, Opera announced they were going to develop “[products] built using the open-source Chromium browser” of which WebKit and V8 are the most visible and well known components. This is a pretty amazing shift and [...]

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How Fast Is… The Windows 8 Launch Website?

Our regular video series How Fast Is…? examines real world websites and details the cause of their performances issues as well as what should be done to solve them. After all, the best way to learn about front-end web performance is to see what other people are doing right and doing wrong. In this edition [...]

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How Fast Is… Apple.com?

Our regular video series How Fast Is…? examines real world websites and details the cause of their performances issues as well as what should be done to solve them. After all, the best way to learn about front-end web performance is to see what other people are doing right and doing wrong. In this edition [...]

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Announcing SPDYCheck: The SPDY Lint Tool

Steam seems to be building up behind SPDY, the next generation web transportation protocol. I wrote back in June that the majority of web browsers speak SPDY, and the majority of web servers are capable of speaking SPDY. Last week, the IETF rechartered the HTTP Working Group to develop HTTP/2.0 based on SPDY. While the [...]

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Internet Explorer is the Hare. And That’s Bad

Internet Explorer 10 is nearly upon us. This is the first update to IE in 19 months. This is a drastically different approach to updating browsers than, say, Google Chrome. I thought it would be interesting to compare the different strategies Microsoft and Google use to deliver web browser innovation. To do that, we need [...]

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Explaining the CRIME weakness in SPDY and SSL

There is an interesting new security weakness discovered in SPDY and SSL/TLS that allows attackers to decrypt the session cookies for other websites. This weakness, known as CRIME, was discovered by Juliano Rizzo and Thai Duong. They will present their full findings at the Ekoparty Security Conference in Buenos Aires later this month. Since SPDY [...]

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The Goldilocks of Performance Conferences

Looking for a great performance conference to attend? What to see the gurus of our space talking about the performance topics they are passionate about? Then you need to attend the Web Performance Summit 2012. I am super excited that The Web Performance Summit is coming back for its third straight year. So much so [...]

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Messaging, Tunnel Vision, and John Siracusa

When you are creating and selling a product, one thing you refine over time is your messaging. Messaging is the information you convey about your company or product to the outside world. Fundamentally, your message describes what value you provide. While people often frame messaging as “describing what problem you solve” this is a simplified [...]

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CPU Benchmarks for Amazon EC2 and Rackspace Cloud Servers

The cloud has made it very easy to allocate and use computing assets like CPU, Disk, and other services. Zoompf uses virtual servers to power our free scanning service, our performance scanner, and our WPO application. When I originally created these servers in early 2010, I choose Rackspace’s Cloud Servers. Zoompf has been growing a [...]

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