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Note: Archived Content

This is the archived version of the Zoompf blog. Since our acquisition by Rigor, all our new research and posts on web performance are being published on The Rigor Blog

What’s in your Webperf Stack?

In the tech world, when we’re discussing software development, we use the term “development stack” with great frequency. One simple example is “LAMP”, which is the acronym for the development stack consisting of Linux, Apache, MySQL, and PHP. There are many other dev stacks, and just recently, we’ve started hearing of new kinds of stacks, […]

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What’s Your Web Performance Sleep Number?

  No, Zoompf is not pivoting into mattress performance, though it does make for a good analogy. With a Sleep Number Bed, you can try any number between 1 – 100 to find out what your optimal mattress firmness is for your best night’s sleep. Somewhat similarly (ok, not really at all), you can run […]

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Determining Someone’s Name From Their Email Address

This post has nothing to do with our awesome web performance products, but is about how I used software and some public data to solve an interesting problem, and how that helped improve how Zoompf sells our product. Hundreds of people a week use our free performance report. Our sales team sends these people a […]

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Web Performance is part of User Experience

There are many courses available today for individuals to learn how to design the user experience, or UX, for a website. All of these courses are slightly different, but generally encompass at least some of the following topical elements. Research to determine users’ problems or difficulties. Empathizing with the users’ journey, including problems and difficulties. […]

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Web performance at the speed of light!

  Did you know the data on your website – text, images, code…everything! – travels at the speed of light? Hard to believe, isn’t it? But it’s true. The bits of data traveling from your web site to the browser screens of your audience move at the speed of light. So why isn’t your web […]

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Treat Web Performance Issues Like Software Bugs

When was the last time you received, saw, or even heard of a web performance issues report that preceded or followed a bug report? Why is it that when someone reports a bug in our software, that bug gets: (1) thoroughly investigated, (2) documented, and (3) scheduled within some form or fashion of bug tracking […]

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Performance Optimization is a Process Not an Event

If someone asks you, "is your website optimized?" your answer should always be "no", because, like software, it’s never done. Optimizing your website’s performance is not a one time event, but rather a seamless, repeatable, and non-disruptive process that the web team implements for applying performance optimizations. The concept of website performance optimization is simple, […]

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SPDY is Dead. Long Live HTTP/2!

Earlier this week Google announced that they will deprecate support for SPDY and transition to HTTP/2. As we have discussed before, SPDY was Google's experiment in making the web faster by improving the way your browser communicates with websites. SPDY formed the basis for HTTP/2 and has been largely replaced by it. With HTTP/2 is […]

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Visualizing image optimizations with hex editors and strings

I’m a big fan of image optimizations, and have written several posts about it. Images dominate the web in terms of both byte size and request count. Luckily, they are super easy to optimize with free and/or open source tools. For lossless image optimization, you can expect to consistently reduce the size of your image […]

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Apple’s Nitro JavaScript Engine Available To All Apps

Last weeks announcement that Safari would support SPDY wasn’t the only interesting piece of web performance news to come out of Apple’s WWDC 2014 event. Apple also announced that, with iOS 8, apps using the embedded web browser control, WKWebView, will gain full access to the powerful Nitro JavaScript engine. And this is a big […]

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