Felix Gerschau

Welcome!

I'm Felix and I'm a web developer.

I use this blog for writing about the things I learn and what I'm interested in.

Lately, this includes React, PWAs, and frontend performance.

Custom Metrics with WebPageTest and TravisCI

29/03/20 | 7 min

Learn how to set up custom metrics using WebPageTest API and TravisCI

Measuring the Performance of JavaScript Functions

25/03/20 | 7 min

Start measuring your JavaScript function's performance with these APIs and learn how to use them.

How to communicate with Service Workers

22/02/20 | 4 min

This article gives you an overview of the MessageChannel, Broadcast API and Client API and helps you to decide which one to use.

PWA Update Notification with Create React App

27/01/20 | 4 min

Learn how to trigger update notifications that ensure that your users are using the latest version of your Progressive Web App.