Profiling React performance with React 16 and Chrome Devtools.

Beyond the Bubble: Real world performance

My work is entirely dedicated to that of helping people build better, faster and more…

Your site without JavaScript

There are plenty of reasons why the presence of script (what it does, how it works, and how heavy it is) needs to be considered a little more thoughtfully.

Web traffic today is made up of more than 50% mobile devices, of these devices, many operate…

The Critical Request

Serving a website seems pretty simple: Send some HTML, the browser figures out what resources to load next. Then we wait…

Three reasons why you should care about Google Lighthouse

Deploying front-end apps to Heroku

The secret is right there in the package.json file

Deploying an app to Heroku is a reasonably straight-forward process, mostly due Heroku’s platform being smart enough to detect the language/framework/package…

Announcing Test Profiles and Budgets 2.0

Calibre can emulate real-world devices, connection speeds, and more

It’s been about 7 weeks since the last update, but this wait will have been worth it. Today marks the most significant…

Announcing Lighthouse Support

Performance, Progressive Web App, Best Practice, and Accessibility…

New in Calibre: JavaScript parse and compile runtime metrics

After a busy November, we’re pleased to let you know that Calibre will now help you understand another vector of web performance.

🏃‍♀ JavaScript runtime metrics