At the moment, all fonts from
static.giffgaff.com are being served without cache-control headers, meaning browsers don’t cache the font files.
Maybe getting a header slapped on there would do some good, especially for page load speeds on data.
Last-Modified: Thu, 02 Jul 2020 00:00:00 GMT
Cache-Control: public, max-age=2592000, stale-while-revalidate=86400
The current CDN does add the
Last-Modified header and the
ETag header, but not the cache-control header, making the other two essentially useless.
With the cache-control header added, the giffgaff fonts would load as fast as the FontAwesome (fa-…) fonts (less than ⅒ the time!).
Scratch that everything is missing cache headers: fonts, design system doodles and icons, etc.