Common myths about performance
User experience can be captured with a single metric. Good user experience is not captured by a single point in time. It’s composed of a series of key milestones in your users’ journey. Understand the different metrics and track the ones that are important to your users’ experience.
User experience can be captured with a single “representative user.” Real-world performance is highly variable due to differences in users’ devices, network connections, and other factors. Calibrate your lab and development environment to test a variety of such different conditions. Use field data to inform selection of test parameters for device type (i.e., mobile vs. desktop), network connections (i.e., 3G or 4G), and other key variables.
My website loads fast for me, so it should load fast for my users. The devices and networks that developers test load performance on are often much faster than what your users actually experience. Use field data to understand what devices and networks your users are on and appropriately mirror those conditions when you test performance.
This website is yet to be developed, like I did for ElenaBenitoRuiz.es
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