As a Shopify theme gets more fully featured, it is likely that large amounts of JavaScript are being used to improve and expand the user experience. Making theme changes gets more nerve wracking as the amount of code increases. Did my sales go down because I broke something with the last JavaScript change? If you’re worried about that next theme publish, it’s time to start monitoring user experiences for JavaScript errors. TrackJS makes error monitoring quick and easy to do!
Slow-loading assets on your web pages can lead to frustrated users, high bounce rates, and lost conversions. For the vast majority of websites, slow-loading resources will be your main performance bottleneck. There’s no way to get around going through the network for essential resources like JavaScript, CSS, and images — thus, it’s crucial that you can quickly identify and fix your slow-loading assets.
Monitoring and observing application performance is a cornerstone for maintaining robust and efficient systems in the ever-evolving development landscape. One key player in this domain is OpenTelemetry. This post provides a comprehensive tutorial and unpacks what OpenTelemetry is, its applications and integration into the JavaScript ecosystem.