Smashing Magazine

OCTOBER 18, 2021

We use Lighthouse and WebPagetest as our synthetic testing tools for performance to measure CLS. At first, we decided to run some tests using synthetic testing tools. This component incorporates several image-related best practices. Barry Pollard has written an excellent in-depth article about CLS.

Website 105

Website Google Metrics Testing Tools 105

Speed Curve

FEBRUARY 15, 2021

You can then configure your monitoring tools to send you alerts – or even break the build, if you're testing in your staging environment – when your budgets are violated. The tricky part comes when you try to put them into practice. > Speed Index (Synthetic). > Lighthouse scores (Synthetic).

Performance 134

Performance Metrics Benchmarking Google 134

Dynatrace

OCTOBER 16, 2023

Synthetic testing simulates real-user behaviors within an application or service to pinpoint potential problems. Here’s a look at why this testing matters, how it works, and what companies need to get the most from this approach. What is synthetic testing? RUM, meanwhile, requires actual users.

Testing 213

Testing Best Practices Testing Tools Monitoring 213

Dynatrace

MAY 27, 2021

CD is the next step in the process that automates the delivery of applications to selected infrastructure environments, such as a development environment for a related feature, or testing environments to verify feature functionality and proper integration with other parts of the software. Testing quality improves. Test pass rate.

Best Practices 130

Best Practices DevOps Open Source Cloud 130

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. 400 pages , jam-packed with in-depth user research and best practices.

Cache 91

Cache Games Performance Website 91

Smashing Magazine

AUGUST 15, 2023

We can test for LCP in a number of ways. The following screenshot is taken from a test I ran through WebPageTest, resulting in an LCP of 2.4 That’s practically an eternity when talking about page speed performance. 400 pages , jam-packed with in-depth user research and best practices. seconds is not great.

Media 73

Media Metrics Mobile Best Practices 73

Smashing Magazine

AUGUST 2, 2021

Refactoring CSS: Strategy, Regression Testing And Maintenance (Part 2). Refactoring CSS: Strategy, Regression Testing And Maintenance (Part 2). In this article, we’ll take a deep dive into the refactoring process itself, and cover incremental refactoring strategy, visual regression testing, and maintaining the refactored codebase.

Strategy 132

Strategy Testing Best Practices Code 132

Dynatrace

JANUARY 5, 2022

Credits on content go to him and the work he has been doing around performance & resiliency testing automation. Our Application Performance Management (APM) and load test team at T-Systems MMS helps our customers reduce the risk of failed releases. Automation : Single load test executions can be repeated and tracked.

Testing 222

Testing Open Source Metrics Infrastructure 222

Dynatrace

MAY 28, 2020

After a new build gets deployed and automated tests executed, SLIs are evaluated against their SLOs and, depending on that result, a build is considered good (promoted) or bad (rolled back). “ The app description and supporting files such as load testing scripts are on the Keptn Example GitHub. This is what this blog is all about.

Engineering 195

Engineering Performance Metrics Best Practices 195

Dotcom-Montior

JUNE 30, 2021

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. For this article, we ran a speed test for the TED website as the target website.

Website 52

Website Monitoring Website Performance Performance 52

Dotcom-Montior

JUNE 30, 2020

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. For this article, we ran a speed test for the TED website as the target website.

Website 52

Website Monitoring Website Performance Performance 52

Dotcom-Montior

JULY 7, 2020

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. For this article, we ran a speed test for the TED website as the target website.

Website 52

Website Monitoring Website Performance Performance 52

KeyCDN

AUGUST 29, 2019

Running speed tests with tools like Google PageSpeed Insights , WebPageTest , or KeyCDN’s Website Speed Test are always a good way to help gauge your website’s performance. Why Care About Page Speed? There are a multitude of reasons why you should care about page speed.

Google 103

Google Cache Speed Analytics 103

Smashing Magazine

SEPTEMBER 6, 2021

Practical HTTP/3 deployment options ( current article ). This explains the challenges involved in deploying and testing HTTP/3 yourself. You would, however, be hard-pressed even today to find a good article that details the nuanced best practices. This is more in-depth and technical. Changes To Pages And Resources.

Network 104

Network Servers Cache Traffic 104

KeyCDN

JUNE 20, 2019

The lower conversion rate on mobile could be due to a variety of reasons including the website not being responsive for mobile devices, the speed isn’t up to par, etc. Improve Site Speed In 2019, having fast site speed is imperative. There are many ways to speed up a slow website.

Ecommerce 41

Ecommerce Speed Website Mobile 41

Smashing Magazine

JANUARY 11, 2021

Testing And Monitoring Auditing workflow, proxy browsers, 404 page, GDPR cookie consent prompts, performance diagnostics CSS, accessibility. You can then mimic the 90th percentile’s experience for testing. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!), Quick Wins.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Testing And Monitoring. 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. You can then mimic the 90th percentile’s experience for testing. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Testing And Monitoring. 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. You can then mimic the 90th percentile’s experience for testing. Now you have something measurable to test against.

Performance 103

Performance Cache Metrics Network 103