None. No tracking or analytics frameworks are active on the site, I've no use for your data. All assets are also local to the server, no fetching of external fonts, CSS or JavaScript.
As a static website fan, this site is built with the ol' "reliable" Jekyll (yes, I know) but because of my brainworms I write nearly all the pages in plain HTML, though they haven't eaten through the grey matter that prevents me from using SASS for stylesheets.
Inter a sans-serif typeface for most body text.
Fraunces a serif typeface for headings.
Chivo a monospace font for preformatted and other misc. text.