I use Archivo for the website, and Arial for exported SVGs.

These TTFs aren't actually served or rendered. graphviz uses them to measure text, for box sizing purposes.

The WOFF2 files are served, to optimize pageload times.

The WOFF2 files are from Google Fonts. They were grabbed from this reference CSS file.

I'm sure there's more legit sources for these TTFs... I got these files from these URLs:

• https://github.com/Omnibus-Type/ArchivoNarrow/raw/master/fonts/ttf/ArchivoNarrow-Regular.ttf
• https://github.com/matomo-org/travis-scripts/raw/master/fonts/Arial.ttf