Former Shopify performance engineer Sia Karamalegos explains the nuances of Core Web Vitals, the Chrome User Experience Report, and the difference between field data and Lighthouse scores.
Former Shopify performance engineer Sia Karamalegos explains the nuances of Core Web Vitals, the Chrome User Experience Report, and the difference between field data and Lighthouse scores.
An investigation into the technical foundation of site speed, exploring why Core Web Vitals are critical for SEO crawlability and how to avoid fraudulent 'instant fix' services.
A 2025 SEO masterclass guide for Shopify store owners, covering site speed, image optimization, and a structured week-by-week plan including Core Web Vitals baselining.