Unveiling the new WebPageTest UI - WebPageTest Blog

Will Serving Real HTML Content Make A Website Faster? Let’s Experiment! - WebPageTest Blog

Spoiler: the answer to the question in the title is a resounding “hell yeah!”

Scott brings receipts.

Introducing Opportunities & Experiments: Taking the Guesswork out of Performance - WebPageTest Blog

WebPageTest just got even better! Now you can mimic the results of what would’ve previously required actually shipping, like adding third-party scripts, switching from a client-rendered to a server-rendered architecture and other changes that could potentially have a big effect on performance. Now you can run an experiment to get the results before actual implementation.

Who has the fastest website in F1? - JakeArchibald.com

I think I physically winced on more than one occassion as I read through Jake’s report here.

He makes an interesting observation at the end:

However, none of the teams used any of the big modern frameworks. They’re mostly Wordpress & Drupal, with a lot of jQuery. It makes me feel like I’ve been in a bubble in terms of the technologies that make up the bulk of the web.

Yes! This! Contrary to what you might think reading through the latest and greatest tips and tricks from the front-end community, the vast majority of sites out there on the web are not being built with React, Vue, webpack or any other “modern” tools.

SpeedTracker

This is a great free service for doing a bit of performance monitoring on your site. It uses WebPageTest and you do all the set up via a Github repo that then displays the results using Github Pages.

It won’t give you the power or control of Calibre but it’s a handy option for smaller sites. Here are the results for adactio.com running on a Moto G over 3G.

Obrigado, Eduardo!

SpeedCurve | PWA Performance

Steve describes a script you can use on WebPageTest to simulate going offline so you can test how your progressive web app performs.