Leveraging CrUX and HTTP Archive for Theme Vitals

Jun 18, 2025, 4:00 PM UTC (see full event)

In this talk, I will walk through how I built the themevitals.com website which displays web performance data by Shopify theme populated with data from HTTP Archive and CrUX. In a similar talk for the 11ty meetup, I spoke more about the static website building process. In this talk, I will focus more on what data is available in HTTP Archive and CrUX and show this example of how I use it.

Sia Karamalegos (she/her) is a freelance web developer and performance engineer. She's also an international conference speaker, writer, and Google Developer Expert in Web Technologies. She co-organizes PerformanceObserver as well as the Eleventy Meetup.