Tim Kadlec

APRIL 10, 2023

First up, the mobile results. For both desktop and mobile data, the 80 / 20 rule still holds strong. As we increasingly focus our conversations of performance on how metrics that relate to the user experience, the divide between backend and frontend goes past murky and starts becoming problematic. 1,001 - 10,000 12.5%

Performance 111

Performance Servers Mobile Metrics 111

Smashing Magazine

AUGUST 9, 2022

It can be measured based on real data from users visiting your sites ( field metric ) or in a lab environment ( lab metric ). In fact, several user-centric metrics are used to quantify web vitals. Ultimately, for now it seems that it’s only the latter that contribute to SEO ranking — both on mobile and on desktop.

Performance 130

Performance Benchmarking Website Metrics 130

The Netflix TechBlog

SEPTEMBER 8, 2020

This allows the app to query a list of “paths” in each HTTP request, and get specially formatted JSON (jsonGraph) that we use to cache the data and hydrate the UI. To prepare ourselves for a big change in the tech stack of our endpoint, we decided to track metrics around the time taken to respond to queries.

Latency 233

Latency Cache Java Traffic 233

Dynatrace

DECEMBER 20, 2021

Session replay is an IT technology that creates anonymized video-like recordings of actions taken by users interacting with your website or mobile application. Streamlined asset caching: Asset caching is critical for creating accurate replays. This step is critical because the metrics needed to achieve these goals differ.

Mobile 246

Mobile Website Analytics Cache 246

CSS Wizardry

AUGUST 7, 2019

However, one metric I feel that front-end developers overlook all too quickly is Time to First Byte (TTFB). Armed with this knowledge, we can soon understand why TTFB can often increase so dramatically on mobile. Surely, you’ve wondered before, the server has no idea that I’m on a mobile device—how can it be increasing its TTFB?!

Latency 269

Latency Ecommerce Servers Mobile 269

MachMetrics

JUNE 30, 2021

Ever since Google is switching towards “ mobile fast indexing ” it’s very important for a webmaster to keep the pages very well optimized to maintain visitor’s + search engine’s satisfaction level high. Yet 53% of visits are abandoned if a mobile site takes longer than three seconds to load. seconds on mobile devices.

Cache 78

Cache Speed Google Website 78

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. Getting Ready: Planning And Metrics. DOM complete, time to first byte, first input delay, client CPU and memory usage. Get a free trial of LogRocket today.

Performance 145

Performance Cache Media Metrics 145

Dynatrace

APRIL 21, 2022

Most monitoring tools for migrations, development, and operations focus on collecting and aggregating the three pillars of observability— metrics, traces, and logs. Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host.

Azure 188

Azure Monitoring Virtualization Metrics 188

Alex Russell

DECEMBER 18, 2022

2023 Content Targets Desktop Devices Networks Mobile Devices Networks Developing Your Own Targets The Performance Inequality Gap is Growing. We've been tracking the mobile device landscape more carefully over the years and, as with desktop, ASP s today are tomorrow's performance destiny. This is an ethical crisis for the frontend.

Performance 113

Performance Network Mobile Latency 113

MachMetrics

DECEMBER 14, 2019

Similar to our article Average Page Load Times for 2018 , we’ll go over the averages for metrics and help you determine if your site is faster or slower than average. As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is.

Best Practices 105

Best Practices Speed Mobile Google 105

KeyCDN

AUGUST 29, 2019

While these metrics can be very helpful it is also important to keep this data in perspective. Take these statistics from Google’s industry benchmarks for mobile page speed guide: We’ve said it before but it’s worth reiterating that as web page load times increase, so does the likelihood of your visitors.

Google 103

Google Cache Speed Analytics 103

Smashing Magazine

JULY 18, 2022

Remember that most visitors browse via a mobile device! The “stale-while-revalidate” cache control strategy can reduce the TTFB issue by serving a cached version of the page until it’s updated. Treat Your Users Right With Http Cache And Segmented Rendering ,” Eric Burel. And now we even pay for it! More after jump!

Cache 116

Cache Website Energy Servers 116

Smashing Magazine

JUNE 2, 2021

This Lighthouse mobile report for the front page showed that a lot of work needed to be done. And while you can usually cache the full page of an article, the same is not true of many shop pages and elements. This way, the file can be cached on the server and in the browser, and no superfluous SVGs will need to be interpreted.

Performance 117

Performance Cache Website Mobile 117

CSS - Tricks

JULY 25, 2019

Last year, Google made two significant changes to their search indexing and ranking algorithms : In March, indexing became based on the mobile version of a page , rather than desktop. In July, the SEO ranking algorithm was updated to include page speed as a ranking factor for both mobile pages and ads. Cache-Headers missing?

Google 71

Google Engineering Speed Mobile 71

CSS - Tricks

MAY 3, 2021

Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Mobile Safari/537.36 Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Linux; Android 6.0.1;

Transportation 86

Transportation Cache Google Mobile 86

Smashing Magazine

NOVEMBER 17, 2022

Mobile image transfer size by year graphic from Media, Images, Web Almanac 2021 chapter. Images are crucial elements for performance and UX, and data extracted from Core Web Vitals metrics such as Largest Contentful Paint , which attempts to identify the most important piece of the above-the-fold content on a given page, proves this.

Media 107

Media Cache Website Mobile 107

Alex Russell

MARCH 6, 2021

The scale of the effect can be deeply situational or hard to suss out without solid metrics. A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. A silver lining on this dark cloud is that mobile JavaScript payload growth paused in 2020.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JULY 29, 2019

Many of us are lucky enough to be on mobile plans which allow several gigabytes of data transfer per month. But there are parts of the world where mobile data is prohibitively expensive, and where there is little or no broadband infrastructure. The Cost Of Mobile Data. As for mobile network connection type, 84.7%

Cache 97

Cache Google Mobile Network 97

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. Speed is also something Google considers when ranking your website placement on mobile. Having a slow site might leave you on page 452 of search results, regardless of any other metric. Compressing, minifying and caching assets. Text-based assets.

Cache 92

Cache Social Media Media Website 92

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. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

Dotcom-Montior

AUGUST 5, 2020

And not only that, the tool also allows you to select from different desktop/mobile browsers, which comes in handy if you know what devices your visitors utilize. Browser Caching: Although it may seem commonplace, caching is sometimes overlooked. Setting them up to load asynchronously can help speed load times.

Website 92

Website Speed Cache Traffic 92

Dynatrace

DECEMBER 15, 2020

Resolved IIS crash on RUM activity interactions (user caching is now disabled if UEM is enabled). Container metrics are reported for Amazon ECS containers on hosts with Amazon Linux (v1). OneAgent for mobile resolved issues. ONE-49694). ONE-45777). Resolved issue in which outbound SOAP requests from CICS/IMS were not correlated.

Operating System 108

Operating System Java Mobile Cache 108

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 104

Performance Cache Metrics Network 104

Tim Kadlec

JUNE 21, 2022

The browser stores alt-svc info in alt-svc cache. Google Search with QUIC: p90 went down 6% on desktop, 5% on mobile. p99 went down 16% on desktop, 14% on mobile. Digging in though, TTFB metric was heaviliy influenced by the HTTP/2 connections including a DNS lookup and the HTTP/3 connections not including the DNS lookup.

Network 64

Network Mobile Google Cache 64

Smashing Magazine

MAY 17, 2021

This is a screenshot from our mobile Core Web Vitals report in Google Search Console. There are three Core Web Vitals metrics that Google will use to help rank sites in their upcoming search algorithm update. A 75th percentile (p75) metric strikes a reasonable balance for performance goals. We still have a lot of work to do!

Google 95

Google Analytics Serverless Metrics 95

Smashing Magazine

MARCH 19, 2021

We did manage to resolve plenty of accessibility issues and layout issues on mobile just by removing floating labels. But we can’t really say just yet whether it had any impact on the business metrics — well, we’ll need to wait for a big book release to see that. Green Scores in Lighthouse on Mobile. Large preview ).

Mobile 141

Mobile Design Cache Code 141

MachMetrics

DECEMBER 27, 2019

While it’s important to check various speed metrics , the Web Almanac uses data from the Chome UX Report which focuses on how Chrome users actually experience the web. The first metric that analyzed was First Contenful Paint (FCP). This shows 17% of websites have fast FCP for desktop users, with only 11% for mobile users.

Performance 52

Performance Speed Website Mobile 52

Smashing Magazine

JANUARY 16, 2023

Largest Contentful Paint (or LCP) is one of three metrics of the Core Web Vitals. These metrics are used by Google to evaluate the quality of user experience. The images used in the article’s Codepen demonstrations will be integrated with TwicPics to save time in their creation and speed up the optimization of the LCP metric.

Media 106

Media Mobile Website Metrics 106

Smashing Magazine

APRIL 29, 2022

Performance needs to be built in starting at the code level, and user-centric metrics like time to interactive (TTI), total blocking time (TBT), and first input delay (FID) help you gauge how fast a website is. This dramatically improved performance, with a 100 ⁄ 100 Google Lighthouse score on PageSpeed Insights even on mobile.

Website 82

Website Google Open Source Mobile 82

Dynatrace

SEPTEMBER 17, 2019

REDIS for caching. Having Dynatrace also looking at key EFS metrics gives them additional root cause information in case something goes wrong. For more details on how to use Dynatrace for Web Performance Optimization , solving JavaScript errors or mobile crashes check out my YouTube Tutorials on these topics. #2:

AWS 127

AWS Monitoring Ecommerce Lambda 127

Smashing Magazine

JANUARY 21, 2021

Image source: Lighthouse Metrics ) ( Large preview ). Plus a service worker that caches all static assets and serves them for repeat views, along with cached versions of articles that a reader has already visited. This is where we started. As it happened, we lost track of performance in the busyness of day-to-day routine.

Performance 145

Performance Cache Mobile Network 145

Smashing Magazine

MARCH 7, 2022

Approximately two-thirds of Indian mobile Chrome users of Smashing Magazine have this setting turned on, for example. Expanding that to look at the top-10 mobile users that support Save Data, by volume for this site, we see the following: Country. Mobile user. Mobile SaveData support. Mobile SaveData on.

Website 104

Website Media Mobile Network 104

Smashing Magazine

NOVEMBER 2, 2021

But many, including Gartner , believe that PWAs are the future of mobile sales that’ll overtake the market in the 2020s: “Progressive web apps are a cost- and a skills-effective way to reach a wide audience with a close-to-native app experience that supports the full customer life cycle. What Does This Mean? Image credit: Garten-und-Freizeit.

Code 75

Code Cache Retail Mobile 75

MachMetrics

JANUARY 23, 2020

Some visitors will be coming to your site via a blazing fast internet on an overpowered, flagship mobile device. The website hasn’t had any changes made to it, (it’s a personal site I haven’t updated in some time), and you can see how each individual metric varies. The trend is your friend.

Speed 62

Speed Testing Website Cache 62

MachMetrics

MAY 14, 2020

When we gave a complete overview of the state of the web in 2020 we challenged our readers to compare their own website metrics to the multiple metric averages. MB for mobile. This is especially true for users who are using a slow internet connection or accessing your page on an older/mobile device. That is a huge gap!

Website 52

Website Testing Speed Cache 52

KeyCDN

JANUARY 23, 2020

During a user session, a variety of metrics can be collected, including: Failed login attempts APDEX score Load times for specific elements Time-to-first-byte A software development team would gather these types of metrics to find problems in an application that negatively affect the user experience. Basic server metrics.

Strategy 72

Strategy Metrics Monitoring Servers 72

The Netflix TechBlog

JUNE 14, 2023

We migrated Netflix’s mobile apps to GraphQL with zero downtime, which involved a total overhaul from the client to the API layer. Until recently, an internal API framework, Falcor , powered our mobile apps. And we definitely couldn’t replay test non-functional requirements like caching and logging user interaction.

Traffic 353

Traffic Latency Cache Metrics 353