Internet Performance for Dummies

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6 Internet Performance For Dummies, Dyn Special Edition These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. ✓ Consumer expectations evolve as quickly as the tech- nology landscape. The adoption rate of mobile tech- nology is one profound example of rapidly evolving consumer expectations. In many countries, mobile web browsing now exceeds traditional desktop browsing and companies that don't have websites built for mobile devices lose business. ✓ Businesses must constantly evaluate their investments in technology. Three-to five-year technology refresh cycles driven by "useful life" financial definitions are becoming irrelevant. Paradoxically, most technology today is built to last for many years, but technology changes so quickly that a three-or five-year refresh cycle may limit innovation and place your business at a strate- gic and competitive disadvantage. ✓ Growth and reliance on the global Internet have created demand for Internet Performance. Nearly 3 billion people (40 percent of the world's population), use the Internet — and the next 3 billion are quickly coming online. Today, everyone relies on the Internet for global commerce, data sharing and exchange, and critical infrastructure (such as transportation and utilities). The Internet of Things (IoT) is rapidly evolving and will create many innovative new uses for the Internet of the future. Defining Internet Performance Internet Performance means different things to different people. Ultimately, Internet Performance is defined by the end‐to‐end user experience for an Internet user who accesses a company website or application. Potentially thousands of variables can affect that experience: from the end user's device hardware and operating system to the company's back- end web server infrastructure — and everything in between. In this book, I focus on the "in between" — often depicted as a nebulous cloud labeled "Internet" on network diagrams. Companies have long thought about how they connect to their customers. They should, however, be thinking about how their customers connect to them. Thus, Internet Performance is defined by what happens after an end user has opened a web browser and entered a website address;

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