Smashing Magazine

OCTOBER 18, 2021

Powered E-Commerce Website (Case Study). Powered E-Commerce Website (Case Study). There are many key performance indicators (KPI) that measure different points during the lifecycle of the web page (such as TTFB, domInteractive and onload ), but these metrics don’t reflect how the end-user experiences the page.

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Website Google Metrics Testing Tools 120

Smashing Magazine

MARCH 2, 2021

However, there are quite a few high-profile case studies exploring the impact of mobile optimization on key business metrics. WPO stats collects literally hundreds of them — case studies and experiments demonstrating the impact of web performance optimization (WPO) across verticals and goals. Mobile Web Testing.

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Mobile Testing Website Benchmarking 142

KeyCDN

AUGUST 29, 2019

Running speed tests with tools like Google PageSpeed Insights , WebPageTest , or KeyCDN’s Website Speed Test are always a good way to help gauge your website’s performance. While these metrics can be very helpful it is also important to keep this data in perspective.

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Google Cache Speed Analytics 103

Smashing Magazine

AUGUST 15, 2023

So noticeable, in fact, that Core Web Vitals has a metric all about it called Largest Contentful Paint (LCP). This metric measures the time it takes, in seconds, to render the largest image or text block that is visible on the initial load. We can test for LCP in a number of ways. And most of all, we need to care.

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Media Metrics Mobile Best Practices 77

Smashing Magazine

MAY 9, 2022

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. Back/Forward Cache Testing Tool. Large preview ). Large preview ).

Cache 106

Cache Games Performance Website 106

Rigor

SEPTEMBER 3, 2019

Case studies abound. At a minimum, Optimal recommends that you have RUM, APM, synthetic, and load test tools set up, instrumented, and producing meaningful data. To implement your plan, Optimal recommends that you take advantage of a tool like Akamai Bot Manage r, PerimeterX , or Shape.

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Website Cache Traffic Ecommerce 74

CSS - Tricks

OCTOBER 10, 2019

by Jake Archibald explains how analyzing WebPageTest results can lead you to performance improvements on a Formula 1-themed case study. The problem with testing Single Page Applications. However, I have found that none of these has the amount of performance-related information and easy-to-use tooling that WebPageTest offers.

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Performance Testing Testing Performance Open Source 53