performance

• Cross-Origin Storage API: Stop Downloading Twice

  July 17, 2026

  The Cross-Origin Storage API lets sites share one cached copy of a file (a JS library, font, or AI model) across origins by SHA-256 hash. Here's how it works.

  • webdev
  • javascript
  • ai
  • performance

• Build-Time OG Images with Satori and Astro

  July 12, 2026

  How this Astro site renders social cards at build time with Satori and resvg-js, and the design and performance choices that keep it fast.

  • astro
  • webdev
  • javascript
  • performance