Quick analysis of a CORS issue that only hits Chrome.
Page Speed Insight and Lighthouse are now part of the modern Web workflow, and now that they integrate Web Vitals quality reports they are even more useful. But just do not blindly apply everything it suggest. Measure first.
A recent Twitter trending post lead me to develop something, just for fun! Spoiler alert: maybe there's something serious at the end of the article.
A big change has been pushed recently to every recent Chrome out there: an important change to SameSite cookies policy. How this messed up my development environment and how I fixed it
HTTP compression is a well-known web server configuration, but you can reach enormous benefit by switching to brotli. And pre-compressing offline.
How a common companion like Google Analytics can mess up your preload performance boost.
Using a "preload" link can be the Holy Grail for boosting performance on some applications, but enabling it is not so straightforward.
A story about how I moved away from a legacy (and expensive) mess of hosting service keeping some historical contents. And save €€€.