Smashing Magazine

OCTOBER 31, 2023

But do you know how Lighthouse calculates performance metrics like First Contentful Paint (FCP), Total Blocking Time (TBT), and Cumulative Layout Shift (CLS)? There’s a handy calculator linked up in the report summary that lets you adjust performance values to see how they impact the overall score. But it comes with caveats.

Speed 97

Speed Google Website Metrics 97

IO River

NOVEMBER 2, 2023

Let’s break it down into four parts:(A) Time From End user to CDN (B) Time inside the CDN platform (C) Time From CDN to Data Center(D) Time inside the Data Center itself‍‍How to measure each part:(A) Measure by performance tests for cacheable content (A+B+C+D) Measured by RUM (Real User Monitoring) or dedicated synthetic checks of dynamic traffic.(D)

Monitoring 52

Monitoring Performance Traffic C++ 52

Dotcom-Montior

NOVEMBER 27, 2018

While the agile approach is focused on implementing small, iterative tests throughout the development and testing phases, the primary goal should be to deliver a world-class, consistent user experience. Your customers demand optimal performance, whether they’re the only user or one of a thousand.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Smashing Magazine

JUNE 10, 2021

Note : If you’re looking for a complete overview of best practices and tools, have a look at the Frontend performance checklist. Waterfaller: A Tool Focusing On Network Waterfalls. Contrary to Lighthouse or WebPage Test, Waterfaller focuses on one thing alone — issues in the network waterfall.

Cache 106

Cache Website Best Practices Network 106

CSS - Tricks

OCTOBER 10, 2019

Selecting DOM elements is a key part of doing all sorts of automated testing, be it for end-to-end testing with Selenium or Cypress or for performance testing with WebPageTest. WebPageTest allows us to select which location, browser and network conditions the test will use. Automating your scripts.

Performance Testing 51

Performance Testing Testing Performance Open Source 51

Speed Curve

MARCH 7, 2022

If you've been working in the performance space for a while and you hear me start to talk about page growth, I'd forgive you if you started running away. ;). How does page bloat affect other metrics, such as Google's Core Web Vitals? 62 requests before the Largest Layout Shift (a CLS-related metric that SpeedCurve captures).

Mobile 145

Mobile Benchmarking Google Metrics 145

Speed Curve

MARCH 12, 2023

Pages - This detailed view gives you trended information for all the metrics you know and love. Easily identify areas of opportunity and how things are performing over time for specific pages you are monitoring. Tests - We've had a lot of requests for this, so we're happy to deliver it. As always, let us know what you think!

Testing 52

Testing Metrics Monitoring Website 52

Apica

JULY 18, 2022

The industry is shifting from basic performance metrics to focusing on the business outcomes and the user experience. Apica also features in GigaOm’s latest Radar Report for Performance Testing. It recognizes important performance metrics and engagement with the application performance monitoring sector.

Innovation 52

Innovation Media Monitoring Metrics 52

Speed Curve

JULY 3, 2023

That's because video seems to have had a surge in growth, which should be a cause of concern for anyone who cares about metrics like Largest Contentful Paint, which measures the largest visual element on a page – including videos. The more scripts on your page, the greater the performance risk. More on that below.)

Mobile 52

Mobile Google Metrics Retail 52

Apica

DECEMBER 12, 2022

If you were on a desert island and forced to bring only one service level objective of a successful application, you would absolutely want to keep tracking user journeys, leaving the rest of the metrics behind. If that is true, what is stopping organizations from truly testing user journeys? Variability and complexity.

Testing 52

Testing DevOps Monitoring Media 52

CSS - Tricks

JULY 25, 2019

Lighthouse records metrics from the browser, applies a scoring model to them, and presents an overall performance score. Guidelines for improvement are suggested based on how specific metrics score. Like PageSpeed, Lighthouse also has a performance score. the performance score is taken from Lighthouse directly.

Google 71

Google Engineering Speed Mobile 71

Smashing Magazine

JANUARY 6, 2020

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Getting Ready: Planning And Metrics. Testing And Monitoring. Getting Ready: Planning And Metrics.

Performance 145

Performance Cache Network Metrics 145

Apica

OCTOBER 17, 2022

Along with that primary workflow of on-screen requests and responses, the journey also includes metrics that are directly experienced by users, such as response times, the frequency of interruptions, visual consistency, and accurate results. All of these aspects of a digital user journey should be tested by a person. The Intellyx Take.

Retail 52

Retail Website Infrastructure Software Architecture 52

Smashing Magazine

JANUARY 7, 2019

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Getting Ready: Planning And Metrics. Testing And Monitoring. Getting Ready: Planning And Metrics.

Performance 104

Performance Cache Metrics Network 104

MachMetrics

JANUARY 23, 2020

You may even have a client who’s wondering why they’re getting inconsistent results on tests they’ve run on a site you built for them. It’s one of the most common (and frustrating) scenarios in web performance testing. PSI uses a Moto G4 on a slow 4G mobile network for its testing.

Speed 62

Speed Testing Website Cache 62

Smashing Magazine

FEBRUARY 2, 2022

This problem is more apparent on unreliable and slow networks and lower-end devices. Users can browse the Internet using slow and unreliable networks, so minification, optimization, and code-splitting of JavaScript files ensure that the user downloads the smallest file possible. Large preview ). Large preview ).

Code 89

Code Performance Network Website 89

Smashing Magazine

NOVEMBER 17, 2022

Webpage performance test report for the Smashing Magazine website. The Relation Between Images And Web Performance. This data makes it clear that there will be no good performance without well-optimized images. Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page.

Media 106

Media Cache Website Mobile 106

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

Testsigma

SEPTEMBER 4, 2021

From game development to machine learning projects to neural networks to automation testing- everything is on the cloud. If there are people who can lend you extraordinary infrastructures, tools, and high-performance servers, you should take advantage of them for the project. Geo-location testing – A huge plus point.

Cloud 52

Cloud Testing Infrastructure Testing Tools 52

Tim Kadlec

MARCH 10, 2015

As our understanding of performance on the web improves, we are starting to shift from the traditional metrics we’ve focused on. Things like load time and page weight are rightfully being given less focus as we move to more mature metrics like SpeedIndex that provide a better understanding of perceived performance.

Metrics 58

Metrics Mobile Testing Tools Testing 58

MachMetrics

JUNE 30, 2021

Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. Core web vitals are modern performance metrics that analyze page speed signals that are crucial to providing a superior web experience.

Cache 78

Cache Speed Google Website 78

The Netflix TechBlog

JANUARY 24, 2022

This post describes how the Netflix TVUI team implemented a robust strategy to quickly and easily detect performance anomalies before they are released?—?and What do we mean by Performance? Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time.

Performance 199

Performance Metrics Performance Testing Testing 199

Rigor

SEPTEMBER 11, 2019

He has also hosted the NY Web Performance Meetup, which boasts over 5,000 members, since 2009. Developers representing hundreds of companies work together at these meetups to become masters in performance metrics and the latest trends in measuring site speed.) MDN (Mozilla Developers Network) @MozDevNet. Paul Irish.

Performance 89

Performance Education Google Website 89

Smashing Magazine

MAY 9, 2022

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. When investigating the impact on your site look at all available metrics for any improvement.

Cache 91

Cache Games Performance Website 91

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Finally, we’ll see which tools you can use to evaluate the performance impact of the new protocols (that’s the almost impossible part, at least for now). Servers and Networks. Network Configuration.

Network 105

Network Servers Cache Traffic 105

SQL Server According to Bob

JANUARY 11, 2020

Microsoft strongly recommends maintaining the default recovery interval to ensure optimal recovery metrics and to function cleanly within the current cluster resource constraints. SQLIO.exe SQLIO.exe is a SQL Server 2000 I/O utility used to establish basic benchmark testing results.

Servers 40

Servers Cache Media Hardware 40

The Netflix TechBlog

MARCH 6, 2019

during a typical week at Netflix, MezzFS performs ~100 million mounts for dozens of different use cases and streams about ~25 petabytes of data. MezzFS collects metrics on data throughput, download efficiency, resource usage, etc. We use this to debug errors and performance issues in specific mounts.

Media 214

Media Storage Processing Cache 214

High Scalability

NOVEMBER 25, 2019

To add elasticity, reliability and durability, these data centers are connected to Google Cloud platform using high speed, secure Google Interconnect network. As events are immutable we were caching them in Memcache for 12 hours but even them downloading the same events so many times from Memcache was causing network issues.

Architecture 52

Architecture Cache Azure Storage 52