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Let’s make 2021… fast! An annual front-end performance checklist (available as PDF, Apple Pages, MS Word), with everything you need to know to create fast experiences on the web today, from metrics to tooling and front-end techniques. Updated since 2016. Ah, you can also get useful front-end tips in our email newsletter. This guide has been kindly supported by our friends at LogRocket, a service that combines frontend performance monitoring, session replay, and product analytics to help you build better customer experiences. LogRocket tracks key metrics, incl. DOM complete, time to fir...

Progressive web applications are proven to raise user engagement and keep the costs down effectively. Building a modern PWA requires more than just the core setup to keep up with the user’s expectations. Therefore, let’s take a first-hand look at adding contemporary characteristics to PWAs, from functioning offline to user-friendly permission requests. Progressive web applications (PWA) are still gathering popularity in 2020. It doesn’t come as a surprise, considering the benefits of higher conversion rates, customer engagement, decreased page loading speed, and lower costs on developme...