The Netflix TechBlog

NOVEMBER 9, 2021

by Liwei Guo , Ashwin Kumar Gopi Valliammal , Raymond Tam , Chris Pham , Agata Opalach , Weibo Ni AV1 is the first high-efficiency video codec format with a royalty-free license from Alliance of Open Media (AOMedia), made possible by wide-ranging industry commitment of expertise and resources. Video encoding is essentially a search problem?—?the

Media 246

Media Open Source Efficiency Software Engineering 246

Speed Curve

SEPTEMBER 20, 2022

Largest Contentful Paint (LCP) measures when the largest visual element (image or video) finishes rendering. If you want to understand which elements are being chosen for LCP, you can either use synthetic monitoring or the webvital.js video element's poster image. How much did the content move around as it loads? text nodes.

Metrics 141

Metrics Retail Mobile Analytics 141

Dynatrace

JULY 16, 2021

We have seen users who joined our preview program “speed up their release validation by 90%”. Let’s Start: Answer driven automation – your full video tutorial. You have automated tests as part of delivery, monitored by Dynatrace, and you want to automatically validate to speed up your delivery pipeline (Lead Time).

DevOps 241

DevOps Open Source Cloud Azure 241

Dynatrace

NOVEMBER 20, 2023

IT operations teams need ways to monitor infrastructure, even if it’s not within their data centers and under their direct management. Plan, execute, and monitor your cloud migration for sustained success – eBook Cloud migration introduces complexity that requires an observability platform.

AWS 200

AWS Artificial Intelligence Analytics Cloud 200

Rigor

JUNE 4, 2019

With so many different metrics available to measure dozens of different aspects of a web page, it can be a struggle to know how best to quantify that page’s overall web performance. Metrics – Thick as Pea Soup. In the early days of performance monitoring, there were far fewer metrics than we have today.

Metrics 89

Metrics Performance Media Google 89

The Netflix TechBlog

OCTOBER 7, 2021

An example of this is Netflix’s video player or the TV UI javascript package. Application version adoption over time for a staged rollout This chart represents a counter metric, which exhibits version adoption over the duration of a staged rollout. Client Applications We deal with two classes of client application updates.

Metrics 197

Metrics Mobile Testing Strategy 197

Speed Curve

JULY 6, 2021

We've gotten a lot of questions about what has changed and the impact on your performance metrics, so here's a summary. In case you missed it, Lighthouse is a speed tool created by the Chrome Developer team at Google. No metrics were added or removed from the Lighthouse scoring in version 8. Speed Index: 15 -> 10.

Google 106

Google Metrics Best Practices Speed 106

Speed Curve

FEBRUARY 25, 2021

What do the different metrics mean? While the focus in most cases tends to be directed toward front-end developers, it's important to remember the back-end as well if you see higher than normal start render times or increases in more basic metrics like time to first byte. Synthetic monitoring. Real user monitoring (RUM).

Performance 143

Performance Benchmarking Metrics Monitoring 143

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. Let's get started! Background: How performance budgets work 1.

Performance 98

Performance Metrics Media Google 98

Speed Curve

JULY 3, 2023

For more than ten years, I've been writing about page bloat, its impact on site speed, and ultimately how it affects your users and your business. Video – For the first time in the many years that I've been covering the topic of page growth, I'm going to focus on the volume of video that pages contain. More on that later.)

Mobile 52

Mobile Google Metrics Retail 52

Smashing Magazine

MARCH 25, 2021

Of the many factors that affect page-load speed, media is a significant one. For example, a budget can help them decide if a page should contain five images — or three images and one video — and still remain within the planned limits. Performance budget, as used on performance monitoring tools, such as SpeedCurve.

Media 119

Media Performance Mobile Latency 119

Dotcom-Montior

JUNE 30, 2021

Why Should You Monitor Your Website Performance? As we’ve noticed, website performance, especially its speed and availability, are essential to the success of your business. High speed, on the other hand, improves your customers’ user experience, and results in an increased conversion rate and income. Performance Insights.

Website 52

Website Monitoring Website Performance Performance 52

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 133

Performance Metrics Benchmarking Google 133

Speed Curve

NOVEMBER 7, 2021

The metrics that comprise Web Vitals are still evolving. These metrics will (I think) always be in a state of evolution. We need to do our best to stay up to date – not just with which metrics to track, but also with what they measure and why they're important. Which performance metrics should you focus on for SEO?

Performance 96

Performance Google Metrics Mobile 96

Speed Curve

NOVEMBER 27, 2023

Earlier this year, Google announced that Interaction to Next Paint (INP) is no longer an experimental metric. Now that INP has arrived to dethrone FID as the responsiveness metric in Core Web Vitals, we've turned our eye to scrutinizing its effectiveness. When it comes to new performance metrics, it's easy to jump on bandwagons.

Google 109

Google Traffic Ecommerce Metrics 109

Dynatrace

FEBRUARY 10, 2021

Think curbside delivery for groceries, video conferencing for work and school, and telemedicine for doctor visits. Today, the speed of software development has become a key business differentiator, but collaboration, continuous improvement, and automation are even more critical to providing unprecedented customer value. What’s next.

Cloud 160

Cloud DevOps Speed Metrics 160

Dynatrace

JANUARY 5, 2022

Any testing that’s done without getting insights with an observability platform or monitoring solution ends up consuming too much time to analyze problems. The Dynatrace documentation and video tutorials give a good overview of integrating any HTTP-based testing tool with Dynatrace. from other test tools or real users).

Testing 206

Testing Open Source Metrics Infrastructure 206

Speed Curve

DECEMBER 21, 2022

Jumped into in-person events, and were so happy to catch up with some of you at SmashingConf and performance.now() (You can watch videos of my talk about performance budgets and Andy Davies' talk about third parties.). You can see at a glance: Key metrics like Core Web Vitals and your User Happiness score. Home dashboard.

Benchmarking 52

Benchmarking Retail Traffic Metrics 52

Dotcom-Montior

JUNE 30, 2020

Why Should You Monitor Your Website Performance? As we’ve noticed, website performance, especially its speed and availability, are essential to the success of your business. High speed, on the other hand, improves your customers’ user experience, and results in an increased conversion rate and income. Performance Insights.

Website 52

Website Monitoring Website Performance Performance 52

Dotcom-Montior

JULY 7, 2020

Why Should You Monitor Your Website Performance? As we’ve noticed, website performance, especially its speed and availability, are essential to the success of your business. High speed, on the other hand, improves your customers’ user experience, and results in an increased conversion rate and income. Performance Insights.

Website 52

Website Monitoring Website Performance Performance 52

Dynatrace

NOVEMBER 19, 2020

The Jenkins to Keptn integration was explained and demoed in one of our Performance Clinic videos; “. The Dynatrace API is used to automate your monitoring tasks, export different types of data into your third-party reporting and analysis tools, and to integrate into workflow tools such as Jenkins. Dynatrace API.

Software 140

Software Software DevOps Open Source 140

Dotcom-Montior

AUGUST 5, 2020

Page speed has been a key factor in Google’s ranking algorithm since 2010 , so it is essential to understand the various ways you can optimize your pages and why implementing synthetic monitoring can ensure your pages perform flawlessly and revenue isn’t lost. Remember, speed is key to the user experience. Optimize Your Pages.

Website 92

Website Speed Cache Traffic 92

Dotcom-Montior

MAY 12, 2020

Website and Web Application Monitoring. Web monitoring is a comprehensive term that describes the activity of testing a website or web application for its availability and performance. HTTP Monitoring. HTTP monitoring allows you to test availability and performance from around the world. The list goes on and on.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Smashing Magazine

JANUARY 11, 2021

This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. LogRocket tracks key metrics, incl. Getting Ready: Planning And Metrics. Vitaly Friedman. 2021-01-11T15:30:13+00:00.

Performance 145

Performance Cache Media Metrics 145

Speed Curve

AUGUST 21, 2017

That's why we're very excited to introduce Hero Rendering Times, a set of new metrics for measuring the user experience. These metrics are available right now to SpeedCurve users. A brief history of UX metrics. Then Speed Index came along. Speed Index is based on measuring when visual content (e.g.,

Metrics 49

Metrics Speed Retail Media 49

Speed Curve

DECEMBER 20, 2021

We've been tracking these as individual metrics – Largest Contentful Paint, First Input Delay, and Cumulative Layout Shift – since before Google branded them as a set. Watch a video walkthrough of the Vitals dashboard.). Watch a video walkthrough of the Vitals dashboard.). RUM Live dashboard. Time period.

Retail 52

Retail Benchmarking Metrics Website 52

Speed Curve

APRIL 9, 2023

Here's how the update to Lighthouse 10 may affect your metrics. Metrics and scoring weights include the deprecation of Time to Interactive (TTI) and the increase in weight for Cumulative Layout Shift (CLS). It's important to note that the recommended thresholds may still be adjusted, as this is still an experimental metric.

Cache 73

Cache Best Practices Metrics Google 73

Speed Curve

DECEMBER 19, 2023

This site is already monitoring the demo Home page. However, I do see that the asset size for video (the video I updated in place of the original image) has increased dramatically to over 1MB: This is confusing to me, so I follow the link to view my deployment in SpeedCurve. This is done in your site configuration in SpeedCurve.

Performance Testing 62

Performance Testing Testing Performance Mobile 62

The Netflix TechBlog

SEPTEMBER 2, 2020

In an earlier blog post, we discussed Telltale , our health monitoring system. Tracing as a foundation Logs, metrics, and traces are the three pillars of observability. In Edgar’s early days, as we strove to build valuable abstractions on top of trace data, the Edgar team first targeted streaming video use cases.

Latency 296

Latency Transportation Engineering Traffic 296

Speed Curve

MARCH 7, 2022

How does page bloat affect other metrics, such as Google's Core Web Vitals? I intentionally left out the numbers for video, because they seemed inconsistent. Google's Core Web Vitals are a set of metrics that are intended to focus on measuring performance from a user-experience perspective. Cumulative Layout Shift.

Mobile 145

Mobile Benchmarking Google Metrics 145

Speed Curve

OCTOBER 25, 2023

Fighting regressions should be the top priority of anyone who cares about the speed of their site. The best way to fight regressions is to create performance budgets on key metrics, and get alerted when they go out of bounds. Make sure you're tracking the right metrics There are a lot of performance metrics out there!

Benchmarking 62

Benchmarking Metrics Website Monitoring 62

Speed Curve

SEPTEMBER 25, 2018

This gives us a relatively unique opportunity to analyse and aggregate performance metrics to gain some interesting insights. In this post, I'm going to analyse some browser-based paint timing metrics: First Paint & First Contentful Paint (defined in the Paint Timing spec and implemented in Chromium). What are paint timing metrics?

Metrics 49

Metrics Performance Testing Testing Internet 49

Speed Curve

JULY 26, 2022

Fixing high-traffic but poorly performing areas of your site will improve your overall metrics – and create a faster, better experience for more of your users. You can then prioritize and focus on these areas to improve important metrics like Largest Contentful Paint. Change summary metrics on your charts. Suggestions?

Testing 52

Testing Performance Metrics Traffic 52

Speed Curve

MAY 9, 2023

Today at Google I/O 2023, it was announced that Interaction to Next Paint (INP) is no longer an experimental metric. It's been hugely helpful to have a simple set of three metrics – focused on loading, interactivity, and responsiveness – that everyone can understand and focus on. How does INP compare to FID?

Metrics 95

Metrics Google Mobile Analytics 95

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. Collecting the data.

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. Collecting the data.

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. Collecting the data.

Speed 40

Speed Analytics Google Retail 40