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Black Friday traffic exposes gaps in observability strategies

Dynatrace

Moreover, website performance problems during peak times have a clear economic impact. In 2021, nearly 180 million Americans shopped online and in person during the Black Friday period, according to a report by the National Retail Federation and Prosper Insights & Analytics.

Traffic 188
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Web Performance Bookshelf

Rigor

Progressive Web Apps teaches you PWA design and the skills you need to build fast, reliable websites by taking you step-by-step through real world examples in this practical tutorial. Web Performance Collection. A collection of practical articles on front-end website performance for front-end developers.

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Don’t Sink Your Website With Third Parties

Smashing Magazine

These services use requests to external hosts (not servers you control) to deliver JavaScript framework libraries, custom fonts, advertising content, marketing analytics trackers, and more. There are two big questions: How do you quantify the impact that these third-party requests have on website performance?

Website 131
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Improving JavaScript Bundle Performance With Code-Splitting

Smashing Magazine

In this article, we’re going to cover code-splitting best practices and showcase some examples using React, so we load the minimum JavaScript necessary to render a page and dynamically load sizeable non-critical bundles. It’s an admin page that has an overview of all user activity, accounts, and analytics (admin page).

Code 89
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Front-End Performance Checklist 2021

Smashing Magazine

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. Explore how improving performance can help relieve some of these common problems. Vitaly Friedman. Quick Wins.

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Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]

Smashing Magazine

Performance isn’t just a technical concern: it matters, and when baking it into the workflow, design decisions have to be informed by their performance implications. Testing And Monitoring. Study your main competitors, collect metrics on how they perform on mobile and desktop and set thresholds that would help you outpace them.

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Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]

Smashing Magazine

Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Testing And Monitoring. Getting Ready: Planning And Metrics. Setting Realistic Goals.