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Performance Testing - Tools, Steps, and Best Practices

KeyCDN

Types of Performance Tests Although web page testing tools are helpful and can give you a quick overview of a website’s speed and overall performance, you should conduct a more thorough analysis using a variety of tests including: Load Tests: Load tests look at how increased workload affects an application’s response time.

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An In-Depth Guide To Measuring Core Web Vitals

Smashing Magazine

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. Cumulative Layout Shift (CLS). A very interesting metric, quite unlike other metrics that have come before for a number of reasons.

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

Smashing Magazine

Luckily, there are many great options that help you automate the collection of data and measure how your website performs over time according to these metrics. synthetic testing tools and RUM together provide a complete picture of performance in your application. Image credit: Addy Osmani ) ( Large preview ).

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

Smashing Magazine

Luckily, there are many great options that help you automate the collection of data and measure how your website performs over time according to these metrics. synthetic testing tools and RUM together provide a complete picture of performance in your application.

article thumbnail

Front-End Performance Checklist 2021

Smashing Magazine

Luckily, there are many great options that help you automate the collection of data and measure how your website performs over time according to these metrics. synthetic testing tools and RUM together provide a complete picture of performance in your application.