Due to the volume of traffic on our websites as a whole, we need to purchase the FontAwesome Pro plan. The login information is in the shared Eventhosts 1Password vault. Search for FontAwesome. The card used for payment is shared among several conferences. Currently, the price is $99 per year.
We use a FontAwesome “kit” that specifies “web fonts” rather than SVGs. In their own documentation, they claim that SVGs are more functional but less performant. In our hands, using SVGs makes changing font icons dynamically difficult. For example, the bookmark icon needs to change from open to filled, and this is easier when using web fonts. Hendrik Strobelt's paper page also has bookmarks on it that require web fonts. As of Jan 2024, the kit we are using is be44b7e05d. Our kit includes “Pro” icons but use a free icon if at all possible.
Because the link to the kit is publicly visible and we don't want people “borrowing” our paid plan, we restrict the domains that can use our kit. If you bring up a new conference website, be sure to add its domain to the FontAwesome Domain List.