TTFB? FCP? LCP? INP? CLS? Something else? What's your most important perf metric?

https://aarontgrogg.com/blog/2026/03/25/whats-the-most-important-performance-metric/

Speedcurve’s Page Speed Benchmarks reported Costco.com's LCP averaging at 6.85s. But could it be that CLS is at least part of the problem? Read to find out!

https://aarontgrogg.com/blog/2026/03/03/investigating-can-cls-cause-a-high-lcp/

On February 18, 2026, I sat down with Chrisitan Heilmann of Coffee with Developers to chat about NoLoJS and lots and lots of other web-type stuff. Have a listen and let me know what you think!

https://aarontgrogg.com/blog/2026/02/26/nolojs-featured-on-the-coffee-with-developers-podcast/

Speedcurve’s Page Speed Benchmarks reported Nike.com's LCP averaging at 4.36s. I got it down to 1.36s. Read to find out how! @nike

https://aarontgrogg.com/blog/2026/02/25/investigating-a-high-lcp-for-nike-com/

After YEARS of the same design and having only a blogroll as my home page, I decided to add a landing page in front. Things are likely to change, but would love to hear what you think so far!

https://aarontgrogg.com/blog/2026/02/19/home-page-update/

An upgrade to the NoLoJS repo, adding an auto-generated static documentation site, with loads of bells and whistles. Would love to hear your thoughts! Happy reducing!

https://aarontgrogg.com/blog/2026/02/18/nolojs-repo-gets-new-doc-pages/

The latest installment in my "Today's Readings" series, offering my rants and thoughts based on findings from around the world-wide web, including Accessibility, CSS, CWV, Design, DevTools, HTML, JS, NoLoJS, Performance, Shopify, Speculation Rules and more. Happy reading!

https://aarontgrogg.com/blog/2026/02/16/todays-readings-417/

The latest installment in my "Today's Readings" series, offering my rants and thoughts based on findings from around the world-wide web, including A11Y, AI, CSS, CSV, Debugging, DevTools, JS, NoLoJS, Performance, Progressive Enhancement, RWD, UI, UX, WP and more. Happy reading!

https://aarontgrogg.com/blog/2026/02/06/todays-readings-416/

Introducing NoLoJS: an open-source design library of components that reduce reliance on JS, where possible, in favor of HTML and CSS.

https://aarontgrogg.com/blog/2026/02/04/nolojs-reducing-the-js-workload-with-html-and-css/

Had a chance to write a guest post for DebugBear all about the JPEG XL (JXL) image format. Would love to hear your thoughts on it!

https://aarontgrogg.com/blog/2026/02/03/what-is-jpeg-xl-and-do-we-really-need-another-image-format/