New font loading causing slower performance

[Burnett2k]

Ran a lighthouse audit on the site and saw this:

It appears the introduction of the new font was done in a way that introduces a bottleneck before DOM rendering can be completed. It's the second thing to load when looking at the network tab, and it then causes subsequent loads later on of the actual woff2 files

https://web.dev/render-blocking-resources/?utm_source=lighthouse&utm_medium=devtools

Ideally, we would mark this script as async or defer, so that it doesn't block rendering of the page. Or, self-host the font in the _next/static folder so it's faster to retrieve.

I don't fully understand the usage of this script / api, so I could be wrong, but it should probably be looked into at some point if Lighthouse is flagging it.

[Burnett2k]

Looks like NextJs has some optimizations possibilities, but it doesn't work for the current font's host we're using: https://nextjs.org/docs/basic-features/font-optimization

[binoy14]

I think self hosting is the best option here so we get more control. We can move the font in /public folder so it should be automatically cached

[Burnett2k]

Just taking some random notes here. The component requests information from api.fontshare.com and we get the following response back

/* Cabinet Grotesk */
@font-face {
  font-family: 'Cabinet Grotesk';
  src: url('//cdn.fontshare.com/wf/7GWNQ5AHAZORLOWZ7ELKPLOIQITAR5S5/NYLYMGXMB4RANWVNJSIHG2IKPZ44CN5E/MT4CWVHB3N2C6KFUZ75QK4JQ2FYK4J4M.woff2') format('woff2'),
       url('//cdn.fontshare.com/wf/7GWNQ5AHAZORLOWZ7ELKPLOIQITAR5S5/NYLYMGXMB4RANWVNJSIHG2IKPZ44CN5E/MT4CWVHB3N2C6KFUZ75QK4JQ2FYK4J4M.woff') format('woff'),
       url('//cdn.fontshare.com/wf/7GWNQ5AHAZORLOWZ7ELKPLOIQITAR5S5/NYLYMGXMB4RANWVNJSIHG2IKPZ44CN5E/MT4CWVHB3N2C6KFUZ75QK4JQ2FYK4J4M.ttf') format('truetype');
  font-weight: 300;
  font-display: swap;
  font-style: normal;
}

@font-face {
  font-family: 'Cabinet Grotesk';
  src: url('//cdn.fontshare.com/wf/J6PPRPKWXDUIYA47IXLEQB4R4OPVYDQH/N2ZXAXWEHVMLISD2TIXJC7EF4GOY43L4/NXM4Z4TDCMYWBZ7AVI2N6DQ5VMWNENMU.woff2') format('woff2'),
       url('//cdn.fontshare.com/wf/J6PPRPKWXDUIYA47IXLEQB4R4OPVYDQH/N2ZXAXWEHVMLISD2TIXJC7EF4GOY43L4/NXM4Z4TDCMYWBZ7AVI2N6DQ5VMWNENMU.woff') format('woff'),
       url('//cdn.fontshare.com/wf/J6PPRPKWXDUIYA47IXLEQB4R4OPVYDQH/N2ZXAXWEHVMLISD2TIXJC7EF4GOY43L4/NXM4Z4TDCMYWBZ7AVI2N6DQ5VMWNENMU.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
  font-style: normal;
}

@font-face {
  font-family: 'Cabinet Grotesk';
  src: url('//cdn.fontshare.com/wf/CKQBK2QBTCDREE7L3MXZ3PPW7LDNJCWU/OTOY7FQFSFOJVZKJWKO2EHUJLOGBDN4Q/4CO2ETY7NITKLUDKMYJ75RHJSPHOJ7XT.woff2') format('woff2'),
       url('//cdn.fontshare.com/wf/CKQBK2QBTCDREE7L3MXZ3PPW7LDNJCWU/OTOY7FQFSFOJVZKJWKO2EHUJLOGBDN4Q/4CO2ETY7NITKLUDKMYJ75RHJSPHOJ7XT.woff') format('woff'),
       url('//cdn.fontshare.com/wf/CKQBK2QBTCDREE7L3MXZ3PPW7LDNJCWU/OTOY7FQFSFOJVZKJWKO2EHUJLOGBDN4Q/4CO2ETY7NITKLUDKMYJ75RHJSPHOJ7XT.ttf') format('truetype');
  font-weight: 500;
  font-display: swap;
  font-style: normal;
}

@font-face {
  font-family: 'Cabinet Grotesk';
  src: url('//cdn.fontshare.com/wf/XMXWOHABYLQDJ42L65EFRYNVRY37HQCB/B2O4O6V3JMFM2WDCYQI3A47L5U4THDUL/WN5274VQ3AUBDFP74GB4EC4XYJ3EKVNE.woff2') format('woff2'),
       url('//cdn.fontshare.com/wf/XMXWOHABYLQDJ42L65EFRYNVRY37HQCB/B2O4O6V3JMFM2WDCYQI3A47L5U4THDUL/WN5274VQ3AUBDFP74GB4EC4XYJ3EKVNE.woff') format('woff'),
       url('//cdn.fontshare.com/wf/XMXWOHABYLQDJ42L65EFRYNVRY37HQCB/B2O4O6V3JMFM2WDCYQI3A47L5U4THDUL/WN5274VQ3AUBDFP74GB4EC4XYJ3EKVNE.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
  font-style: normal;
}

Which then causes the following dependent fonts to be loaded. Probably based on the size of the browser.