Speed Curve

MAY 1, 2023

If you've invested countless hours in speeding up your pages, but you're not using performance budgets to prevent regressions, you could be at risk of wasting all your efforts. A performance budget is a threshold that you apply to the metrics you care about the most. Which metrics should you start with? Let's get started!

Performance 98

Performance Metrics Media Google 98

Speed Curve

FEBRUARY 15, 2021

Web pages are unbelievably complex, and there are hundreds of different metrics available to track. A performance budget is a threshold that you apply to the metrics you care about the most. This is when you run into three important questions: Which metrics should you focus on? Which metrics should you focus on?

Performance 134

Performance Metrics Benchmarking Google 134

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Getting Ready: Planning And Metrics Performance culture, Core Web Vitals, performance profiles, CrUX, Lighthouse, FID, TTI, CLS, devices. Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Table Of Contents.

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

DECEMBER 7, 2020

by Zhi Li, Kyle Swanson, Christos Bampis, Lukáš Krasula and Anne Aaron Over the past few years, we have been striving to make VMAF a more usable tool not just for Netflix, but for the video community at large. VMAF is a video quality metric that Netflix jointly developed with a number of university collaborators and open-sourced on Github.

Metrics 154

Metrics Open Source Tuning Speed 154

Dean Hume

SEPTEMBER 21, 2016

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The total is your Speed Index score!" speedindex-test.

Speed 40

Speed Analytics Google Retail 40

Dean Hume

SEPTEMBER 21, 2016

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The total is your Speed Index score!" speedindex-test.

Speed 40

Speed Analytics Google Retail 40

Dean Hume

SEPTEMBER 21, 2016

Whilst web page load time is an important metric to measure, it doesn't tell the whole picture. As I started to learn more about web page performance, I started to experiment with webpagetest.org and discovered the different metrics that it uses. The total is your Speed Index score!" speedindex-test.

Speed 40

Speed Analytics Google Retail 40

Smashing Magazine

MARCH 2, 2021

Also, there was a 65% increase in video consumption on mobile devices in 2020. According to Tim Kadlec (video), that’s an Android device that’s couple of years old, and costs around $200. However, there are quite a few high-profile case studies exploring the impact of mobile optimization on key business metrics. Large preview ).

Mobile 133

Mobile Testing Website Benchmarking 133

Smashing Magazine

APRIL 29, 2022

And slow websites are, in a way, discrimination: The majority of the world’s population don’t have access to high-speed Internet or fast CPUs. Large images and videos aside, third-party scripts like pixel trackers, A/B testing, ads, widgets, CDNs, etc., This is why performance is crucial when building websites. The JavaScript Tax.

Website 80

Website Google Open Source Mobile 80

Smashing Magazine

JANUARY 6, 2020

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Table Of Contents.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

AUGUST 3, 2023

Google’s Core Web Vitals is a set of performance metrics that site owners can use to evaluate performance and diagnose performance issues. These metrics provide a different perspective on user experience: Largest Contentful Paint (LCP) Measures the time it takes for the main content on a webpage to load. One of the key Next.js

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Performance Cache Traffic Metrics 74

Smashing Magazine

JUNE 2, 2021

Every front-end developer is chasing the same holy grail of performance: green scores in Google Page Speed. Real-life performance for your users and how the website “feels” when you’re using it should not be discounted, even if it costs you a point or two in Page Speed (otherwise, we would all just have a search bar and unstyled text).

Performance 115

Performance Cache Website Mobile 115

The Netflix TechBlog

MARCH 13, 2020

SVT-AV1: open-source AV1 encoder and decoder by Andrey Norkin , Joel Sole , Mariana Afonso , Kyle Swanson, Agata Opalach , Anush Moorthy , Anne Aaron SVT-AV1 is an open-source AV1 codec implementation hosted on GitHub [link] under a BSD + patent license. A single-threaded compression mode is used.

Open Source 154

Open Source Efficiency C++ Speed 154

Smashing Magazine

JANUARY 7, 2019

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. 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. Table Of Contents. Setting Realistic Goals. Defining The Environment.

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JUNE 8, 2021

Next to videos, images are the heaviest, most requested assets on the web. Downloading files such as images or videos over the network can be slow and costly. Which metrics should you focus on to improve the user experience? His team focuses on speed , helping keep the web fast. DRM-free, of course. ePUB, Kindle, PDF.

Media 105

Media Cache Google Best Practices 105

Rigor

SEPTEMBER 11, 2019

list of those who are making a significant impact on speeding up the web today. Follow him on Twitter @ RickByers and be sure to watch the video of his conversation at Chrome Dev Summit 2016 , where he discussed the ways Chrome is “improving predictability for developers.” Here is our (ever-growing!) Rachel Andrew.

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Performance Education Google Website 89

Smashing Magazine

APRIL 28, 2021

Next to videos, images are the heaviest, most requested assets on the web. Downloading files such as images or videos over the network can be slow and costly. Which metrics should you focus on to improve the user experience? His team focuses on speed , helping keep the web fast. DRM-free, of course. ePUB, Kindle, PDF.

Media 92

Media Cache Google Best Practices 92

Speed Curve

OCTOBER 19, 2015

The idea is to identify your performance goals and track the metrics that help you achieve your goals. Benchmark a variety of metrics and choose a target of 20% faster or less resources. If this was your site you could pick a metric like JS requests, set a lower budget and see if you can beat the competition!

Performance 45

Performance Benchmarking Metrics Media 45

Smashing Magazine

NOVEMBER 17, 2022

Web performance refers to the speed at which a website loads, how fast it’s downloaded, and how an app is displayed on the user’s browser. Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page. Fixes To Common Problems. The Benefits Of Using An Image Service CDN. Conclusion.

Media 105

Media Cache Website Mobile 105

Dean Hume

JULY 5, 2016

When you view the video for this site, you'll notice that you've simulated a SPOF and the site should take significantly longer to load. The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated.

Website 40

Website Metrics Speed Testing 40

Dean Hume

JULY 5, 2016

When you view the video for this site, you'll notice that you've simulated a SPOF and the site should take significantly longer to load. The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated.

Website 40

Website Metrics Speed Testing 40

Dean Hume

JULY 5, 2016

When you view the video for this site, you'll notice that you've simulated a SPOF and the site should take significantly longer to load. The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated.

Website 40

Website Metrics Speed Testing 40

Smashing Magazine

APRIL 29, 2021

Largest Contentful Paint (LCP) is a Core Web Vitals metric that measures when the largest contentful element (images, text) in a user’s viewport, such as one of these images, becomes visible. Cumulative Layout Shift (CLS, a Core Web Vitals metric) measures the instability of content. Lighthouse. Large preview ). Large preview ).

Media 145

Media Network Metrics Mobile 145

Rigor

OCTOBER 30, 2019

Reading time 11 min As companies become more aware of the importance of web performance, internal teams begin to research tools they can use to use to track their metrics and improve the user experience of their websites and applications. When it comes to network speed, Lighthouse gives you three options – and no others.

Google 51

Google Best Practices Energy Website 51

Tim Kadlec

OCTOBER 8, 2015

The story was about a fast food chain that determined customer service was an important metric that they needed to track in some way. The AMP Project is an open source initiative to improve performance and distribution on the mobile web. A few years ago there was a story of incentives gone wrong that was making the rounds.

Cache 75

Cache Google Mobile Open Source 75

Smashing Magazine

NOVEMBER 22, 2021

We deployed these enhancements gradually over time to ensure that our users didn’t experience any disruptions, but instead only a consistent improvement of their site speed. While some noticeable progress was made, it was challenging to implement significant changes just for the sake of speed. Creating A Performance Culture.

Website 126

Website Performance Google Media 126

Alex Russell

JUNE 20, 2020

rich multimedia (animations, video, audio). Huge reach, plus the licensing of On2's video codecs , made Flash the default video delivery mechanism for many years. a lab's worth of sensors , including: cameras (both still and video). Unfortunately, much has already been done to speed the web's irrelevance.

Hardware 55

Hardware Games Java Media 55

O'Reilly

JANUARY 17, 2023

In the past they understood the APIs of TensorFlow and Torch to build models by hand; today they are fluent in the autoML vendor’s APIs to train models, and they understand how to review the metrics. Only the larger shops have the bandwidth to really bring someone up to speed. There’s just not much for them to do.

Tuning 130

Tuning Open Source AWS Software 130

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. It is physically limited by the speed of light or, practically, how fast signals can travel in wires or in the open air.

Performance 105

Performance Network Latency Servers 105

Smashing Magazine

SEPTEMBER 29, 2021

Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page. Assuming encode/decode speeds meet your needs. Smaller file size directly impacts the Largest contentful Paint (LCP) metric for the page as image resources needed by the page get loaded faster. Encode/Decode Speed.

Open Source 144

Open Source Speed Website Google 144