WebPageTest API
I’m willing to bet you know WebPageTest. It is the premier tool in the toolbox of web performance people. Maybe you didn’t know that WebPageTest was a side project of one fella, Patrick Meenan, for most of its lifetime, …
Articles Tagged
performance
139 Articles
How to Monitor Core Web Vitals and Take Action with Raygun
Raygun is an error and performance monitoring software for websites and mobile apps. In the case of websites, you install their JavaScript snippet onto your site, which takes 2 seconds, and now you’ve got monitoring in place. Why? Well now …
How to Improve CSS Performance
There is no doubt that CSS plays a huge role in web performance. Milica Mihajlija puts a point on exactly why:
…When there is CSS available for a page, whether it’s inline or an external stylesheet, the browser delays rendering
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Chris Coyier
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Space Jam
It’s certainly worth noting that the Space Jam website, which made its way into umpteen conference talks for being fabulous evidence of the web’s strength in backward compatibility, has been replaced. We could have saw that coming. Everything is …
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Chris Coyier
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Fixing a slow site iteratively
Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. A 2017 study by Akamai says as …
Kealan Parr
on
(Updated on )
Tricking CWV
Google has said that Core Web Vitals (CWV) are going to be an SEO factor, and the date is nigh: May 2021. So, I’m seeing some scrambling to make sure those metrics are good. Ya know, the acronym …
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Chris Coyier
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(Updated on )
Tools for Auditing CSS
Auditing CSS is not a common task in a developer’s everyday life, but sometimes you just have to do it. Maybe it’s part of a performance review to identify critical CSS and reduce unused selectors. Perhaps is part of effort …
The Mobile Performance Inequality Gap
Alex Russell made some interesting notes about performance and how it impacts folks on mobile:
…[…] CPUs are not improving fast enough to cope with frontend engineers’ rosy resource assumptions. If there is unambiguously good news on the tooling front,
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Robin Rendle
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Maximally optimizing image loading for the web in 2021
Malte Ubl’s list for:
…8 image loading optimization techniques to minimize both the bandwidth used for loading images on the web and the CPU usage for image display.
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Chris Coyier
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(Updated on )
Some Performance Blog Posts I’ve Bookmarked and Read Lately
- Back/forward cache — I always assumed browsers just do fancy stuff with the back/forward buttons and us developers had very little control. Philip Walton tells us it’s critical that we understand “what makes pages eligible (and ineligible) for bfcache to
Chris Coyier
on
A font-display setting for slow connections
Me, I really dislike FOUT. I like that it’s an option, because not displaying text quickly on the web is no good. I know font-display: swap; is popular because it’s good for performance, but that FOUT stuff pains me. Matt …
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Chris Coyier
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