Fonts used on this site, all self-hosted, all under the SIL Open Font License 1.1
(commercial use allowed; the licence text must travel with the files):

  GFS Didot           Greek Font Society            OFL-gfsdidot.txt
  Noto Serif Display  Google                        OFL-notoserifdisplay.txt
    (also as "Noto Serif Headline": the full variable font, condensed to normal
     width and thin to black, for the newspaper theme; notoserifheadline-*.woff2)
  EB Garamond         The EB Garamond Project       OFL-ebgaramond.txt
  Commissioner        The Commissioner Project      OFL-commissioner.txt
  UnifrakturMaguntia  j. 'mach' wust, Peter Wiegel  OFL-unifrakturmaguntia.txt
    (Latin only, on purpose: the newspaper theme's English masthead "The Wedding Post";
     Greek letters fall back to Noto Serif Headline)

  Literata            The Literata Project Authors      OFL-literata.txt
  Alegreya            The Alegreya Project Authors      OFL-alegreya.txt
  Cardo               David J. Perry                OFL-cardo.txt
  Brygada 1918        The Brygada 1918 Project Authors  OFL-brygada.txt
  Comfortaa           The Comfortaa Project Authors     OFL-comfortaa.txt
  Advent Pro          The Advent Pro Project Authors    OFL-adventpro.txt
  GFS Neohellenic     Greek Font Society            OFL-gfsneohellenic.txt
  Mynerve             The Mynerve Project Authors       OFL-mynerve.txt

  Bona Nova           The Bona Nova Project Authors     OFL-bonanova.txt
  Piazzolla           The Piazzolla Project Authors     OFL-piazzolla.txt
  Libertinus Serif Display  The Libertinus Serif Display Project Authors  OFL-libertinusserifdisplay.txt
  Vollkorn            The Vollkorn Project Authors      OFL-vollkorn.txt
  Ysabeau             The Ysabeau Project Authors       OFL-ysabeau.txt
  Manrope             The Manrope Project Authors       OFL-manrope.txt
  Mansalva            The Mansalva Project Authors      OFL-mansalva.txt

Only the Greek and Latin subsets are bundled (woff2), taken from Google Fonts.