Bonnes pratiques pour l'utilisation des web fonts

Over the past months there have been a few articles taking care of different font loading optimization techniques. Reading all of them, I ran into a few other issues that are not covered there. Finally, I wanted to have one resource combining the information of the others. Some code snippets are borrowed or adapted from the articles I linked here.
Anselm Hannemann, Using Web Fonts The Best Way (in 2015).

Liste des bonnes pratiques pour l’utilisation des web fonts : chargement asynchrone, perfectionnement du temps de chargement des fontes, gestion du cache, etc.