Outline the logo, don't load the font
A wordmark is one shape. It doesn't need a typeface at runtime.
The mm.coffee wordmark is set in R41 Stop, an Adobe Font. The obvious way to put
that on a website is an Adobe Fonts web project: add the family, get a kit ID,
drop a <link> in the head.
Don’t.
What you’re actually shipping
A webfont for a logo means a render-blocking request to a third-party host, a flash of the wrong typeface while it loads, and a licence that has to stay valid for as long as the site is up. All so the browser can render nine glyphs it will never rearrange.
A logo isn’t text. It’s one fixed shape. Convert it to outlines once and it
becomes a few hundred bytes of <path> data that renders identically forever,
with no request, no licence question, and no flash.
The catch
Illustrator’s SVG export keeps type as live text by default:
<text font-family="R41Stop-Regular, 'R41 Stop'" font-size="200">
mm.coffee
</text>
That renders correctly on your machine, because you have the font installed. On anyone else’s it silently falls back to a default sans — and it looks fine enough that you might not notice.
Select all, Type → Create Outlines, save again. The file should contain
<path> and no <text>. That’s the whole fix.
Worth doing anyway
Outlining also means the mark can inherit colour. Set fill="currentColor" on
the root <svg> and the wordmark recolours by context — black on paper in the
header, paper on red in the footer — from one file.
The site now makes zero third-party font requests. The two faces that are type are self-hosted and subset at build time; the logo isn’t type at all.