Shopify web font file count and the Core Web Vitals

Sites with 1 to 3 font files web font file count have a good LCP most often: 97%, against 97% of all Shopify sites. Sites with 7 or more font files font count have it least often, at 96%.

Sites with 1 to 3 font files web font file count have a good CLS most often: 90%, against 86% of all Shopify sites. Sites with 7 or more font files font count have it least often, at 80%.

4 to 6 font files is the most used: 39.2% of Shopify sites. 1 to 3 font files is 30.1% of Shopify sites.

Across the four LCP sub-parts in Chrome's field data, the largest gap between 1 to 3 font files and 7 or more font files sits in resource load delay: 558 ms median for 1 to 3 font files against 688 ms for 7 or more font files. Overall median field LCP is 1.2s for 1 to 3 font files (TTFB 291 ms, load delay 558 ms, load duration 163 ms, render delay 244 ms) versus 1.4s for 7 or more font files.

Across the four LCP sub-parts in Chrome's field data, the largest gap between 1 to 3 font files and 7 or more font files sits in resource load delay: 558 ms median for 1 to 3 font files against 688 ms for 7 or more font files. Overall median field LCP is 1.2s for 1 to 3 font files (TTFB 291 ms, load delay 558 ms, load duration 163 ms, render delay 244 ms) versus 1.4s for 7 or more font files.

On jQuery, 38% of sites use 4 to 6 font files web font file count, and 95% of jQuery sites have a good LCP, against 97% of all sites. On Vue, 42% of sites use 7 or more font files, and 97% of Vue sites have a good LCP.

On jQuery, 38% of sites use 4 to 6 font files web font file count, and 80% of jQuery sites have a good CLS, against 86% of all sites. On Vue, 42% of sites use 7 or more font files, and 80% of Vue sites have a good CLS.

FrameworkWeb font file count on its sitesGood LCP

All Shopify sites 8,246 sites4 to 6 font files 39%1 to 3 font files 30%7+ font files 29%97%

Vue 933 sites7+ font files 42%4 to 6 font files 39%1 to 3 font files 19%97%

jQuery 3,153 sites4 to 6 font files 38%7+ font files 34%1 to 3 font files 26%95%

4 to 6 font files 1 to 3 font files 7+ font files 0 web fonts (system fonts)

Does the framework explain the web font file count difference?

On jQuery, 97% of sites with 1 to 3 font files web font file count have a good LCP, against 95% of jQuery sites with 4 to 6 font files. Within jQuery, sites with 1 to 3 font files and 4 to 6 font files have a good LCP about equally often. On Vue, 96% of sites with 1 to 3 font files web font file count have a good LCP, against 98% of Vue sites with 4 to 6 font files. Within Vue, sites with 1 to 3 font files and 4 to 6 font files have a good LCP about equally often.

On jQuery, 87% of sites with 1 to 3 font files web font file count have a good CLS, against 84% of jQuery sites with 4 to 6 font files. Within jQuery, sites with 1 to 3 font files and 4 to 6 font files have a good CLS about equally often. On Vue, 83% of sites with 1 to 3 font files web font file count have a good CLS, against 85% of Vue sites with 4 to 6 font files. Within Vue, sites with 1 to 3 font files and 4 to 6 font files have a good CLS about equally often.

How font proliferation delays text and hero rendering

Each font weight and style is a high-priority download that competes with hero images and triggers layout recalculations when late-arriving faces swap in. Across 2,481 sites (30.1%) loading 1 to 3 font files, 97% pass field LCP at a 1.1s median, compared with 96% (1.4s median) across the 28.6% (2,356) loading 7+ font files.