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Have you noticed a slight slowdown in your websites lately, but timing them with a stopwatch is doing you no favors? If you find this is happening, you know you’ll have to report it to management, but ...

The download speed of your Internet connection is important, but if you send a lot of information from your computer, the upload speed is just as vital. Download speeds determine how quickly Web pages ...

Here we present a guide on how to test a website, full of updated information and tips to make sure everything looks and works exactly as it should on launch day. Three years ago, Mark Knowles wrote a ...

We've been using the same basic methodology since our first set of browser speed tests, but we've changed the tools, and a few of the specifics, along the way. For a long time, we tested web browsers ...

A/B testing (split testing) is the process of setting up two versions of one page, and testing which page outperforms the other. Here's how to do it right. Did you know that you can test certain ...