Examples of websites using
GT America
(GT America is a sans-serif font designed by Noël Leu and Seb McLauchlanand released by Grilli Type in 2016. It is a modern interpretation of classic American Gothic fonts and comes in 84 styles, including regular and italics, in various weights and widths)
with
GT Zirkon
(GT Zirkon is a geometric sans-serif font released by Grilli Type. The family consists of 18 styles, including regular, book, bold, condensed, and extended widths, each with matching italics)