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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Given that 66% of all websites (and 77% of all requests ) are running HTTP/2, I will not discuss concatenation strategies for HTTP/1.1 Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download.

Cache 291
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Site reliability done right: 5 SRE best practices that deliver on business objectives

Dynatrace

Mobile retail e-commerce spending in the U. With so many of their transactions occurring online, customers are becoming more demanding, expecting websites and applications to always perform perfectly. Website load times have been found to have a direct correlation with conversion rates.

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Time to First Byte: What It Is and Why It Matters

CSS Wizardry

This is understandable—forgivable, almost—when you consider that TTFB begins to move into back-end territory, but if I was to sum up the problem as succinctly as possible, I’d say: While a good TTFB doesn’t necessarily mean you will have a fast website, a bad TTFB almost certainly guarantees a slow one. But what else is TTFB?

Latency 269
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Mobile browser testing – what is it and when is it done?

Testsigma

The native and mobile web browser testing is being performed more and more compared to desktop testing. What are Mobile Web Applications? Applications that do not require to be downloaded and can be accessed via hitting the URL on a mobile browser are known as mobile web applications. What are Native Applications?

Mobile 52
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Image CDN - Speed Up the Delivery of Your Most Important Asset

KeyCDN

Well, that is probably true, as long as they don’t slow down your website to the point where you are losing visitors. When it comes to optimizing your website, images are generally the most important asset you should spend time on figuring out how to reduce in size and deliver in a more efficient way. Mbps ( Opensignal ).

Speed 52
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How BizDevOps can “shift left” using SLOs to automate quality gates

Dynatrace

Establishing clear, consistent, and effective quality gates that are automatically validated at each phase of the delivery pipeline is essential for improving software quality and speeding up delivery. Automating quality gates creates reliable checks and balances and speeds up the process by avoiding manual intervention.

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HTTP Archive’s Annual State of the Web Report

CSS - Tricks

The HTTP Archive looked at more than 7 million websites and compiled their annual report detailing how the sites were built. Mobile pages do use slightly less CSS code across all percentiles, but only by 4 to 7 KB. And there’s an enormous wealth of information about how the web changed in 2020.

Latency 98