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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Given this limitation, it was advantageous to have fewer files: if we needed to download 18 files, that’s three separate chunks of work; if we could somehow bring that number down to six, it’s only one discrete chunk of work. 4,362ms of cumulative latency; 240ms of cumulative download. in this article. That’s almost 22× more!

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

Dynatrace

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. However, cloud complexity has made software delivery challenging.

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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 We Optimized Performance To Serve A Global Audience

Smashing Magazine

This commitment involves prioritizing websites that offer not only relevant content but also an excellent user experience. LCP is particularly vital for landing pages , which are predominantly content and often the first touch-point a visitor has with a website. The browser must then pause to fetch and parse the corresponding files.

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Optimizing Web Performance: Understanding Waterfall Charts

Dotcom-Montior

Waterfall charts are diagrams which represent how website resources are being downloaded, parsed by the engine, in a timeline that gives us the opportunity to see the sequence and dependencies between resources. Optimizing Web Performance by Understanding Waterfall Charts Performance and speed of a web site plays a tremendous role.

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Cache-Control for Civilians

CSS Wizardry

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all. If there is a newer file available on the server, we definitely want to download it. We can completely cut out the overhead of a roundtrip of latency. stale-while-revalidate.

Cache 264
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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. While this is suboptimal on desktop, it really kills performance on mobile, where round-trip latency is more important than raw download speed.

Latency 98