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How to Estimate Web Performance Impact Before Making Fixes

Jos

Look, there are many case studies proving a correlation between loading time and business metrics!” ?-?I The reason why Rel mCvR can be a good metric is that it is not influenced by changes in traffic (eg seasonality or promotional campaigns). What is the business opportunity for web performance improvements?

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How Data Inspires Building a Scalable, Resilient and Secure Cloud Infrastructure At Netflix

The Netflix TechBlog

How can we develop templated detection modules (rules- and ML-based) and data streams to increases speed of development? Can we adjust our auto-scaling policies to be more efficiency without risking our availability during traffic spikes? What will be the cost of rolling out the winning cell of an AB test to all users?

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How to use Server Timing to get backend transparency from your CDN

Speed Curve

Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. For example, processing of web application firewall (WAF) rules, detecting bots or other malicious traffic though security services, and growing in popularity, edge compute.

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Fostering a Web Performance Culture

Jos

At the same time, they open a door to lots of concepts that might be overwhelming: PRPL, RAIL, Paint Timing API, TTI, HTTP/2, Speed Index, Priority Hints and more … Why Performance doesn’t get Prioritized Web performance at organizations is a real challenge. Lots of case studies where changes in performance led to key metric improvement.

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How We Optimized Performance To Serve A Global Audience

Smashing Magazine

It increases our visibility and enables us to draw a steady stream of organic (or “free”) traffic to our site. While paid marketing strategies like Google Ads play a part in our approach as well, enhancing our organic traffic remains a major priority. The higher our organic traffic, the more profitable we become as a company.

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Fostering a Web Performance Culture

Jos

At the same time, they open a door to lots of concepts that might be overwhelming: PRPL, RAIL, Paint Timing API, TTI, HTTP/2, Speed Index, Priority Hints and more …. Also, the speed of my internet connection is humongous and I’m close to data centres located in Stockholm and London. Ideally, shoot for 30% speed improvements.

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

Smashing Magazine

You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Study common complaints coming into customer service and see how improving performance can help relieve some of these common problems.