Shopify web font file count and the Core Web Vitals

Sites with zero web fonts web font file count have a good LCP most often: 98%, against 95% of all Shopify sites. Sites with 7 or more font files font count have it least often, at 93%.

Sites with zero web fonts web font file count have a good CLS most often: 97%, against 94% of all Shopify sites. Sites with 7 or more font files font count have it least often, at 91%.

4 to 6 font files is the most used: 39.2% of Shopify sites. Zero web fonts is 2.2% of Shopify sites.

Across the four LCP sub-parts in Chrome's field data, the largest gap between zero web fonts and 7 or more font files sits in element render delay: 232 ms median for zero web fonts against 382 ms for 7 or more font files. Overall median field LCP is 1.2s for zero web fonts (TTFB 389 ms, load delay 559 ms, load duration 236 ms, render delay 232 ms) versus 1.5s for 7 or more font files.

Across the four LCP sub-parts in Chrome's field data, the largest gap between zero web fonts and 7 or more font files sits in element render delay: 232 ms median for zero web fonts against 382 ms for 7 or more font files. Overall median field LCP is 1.2s for zero web fonts (TTFB 389 ms, load delay 559 ms, load duration 236 ms, render delay 232 ms) versus 1.5s for 7 or more font files.

On jQuery, 38% of sites use 4 to 6 font files web font file count, and 93% of jQuery sites have a good LCP, against 95% of all sites. On Vue, 42% of sites use 7 or more font files, and 94% of Vue sites have a good LCP.

On jQuery, 38% of sites use 4 to 6 font files web font file count, and 91% of jQuery sites have a good CLS, against 94% of all sites. On Vue, 42% of sites use 7 or more font files, and 90% 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%95%

Vue 933 sites7+ font files 42%4 to 6 font files 39%1 to 3 font files 19%94%

jQuery 3,153 sites4 to 6 font files 38%7+ font files 34%1 to 3 font files 26%93%

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, 92% of sites with 4 to 6 font files web font file count have a good LCP, against 97% of jQuery sites with 1 to 3 font files. Within jQuery, sites with 4 to 6 font files have a good LCP less often. On Vue, 95% of sites with 4 to 6 font files web font file count have a good LCP, against 98% of Vue sites with 1 to 3 font files. Within Vue, sites with 4 to 6 font files and 1 to 3 font files have a good LCP about equally often.

On jQuery, 91% of sites with 4 to 6 font files web font file count have a good CLS, against 94% of jQuery sites with 1 to 3 font files. Within jQuery, sites with 4 to 6 font files and 1 to 3 font files have a good CLS about equally often. On Vue, 90% of sites with 4 to 6 font files web font file count have a good CLS, against 95% of Vue sites with 1 to 3 font files. Within Vue, sites with 4 to 6 font files and 1 to 3 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 1.2s median, compared with 93% (1.5s median) across the 28.6% (2,356) loading 7+ font files.