Examples of websites using
Silk Serif
(Silk Serif is a serif font designed by Rakel Tómasdóttir and released by SilkType in 2017. The font family includes multiple styles and weights)
with
Roboto
(Roboto is a sans-serif font designed by Christian Robertson and published through Google. The font family consists of 12 styles, including regular, italic, bold, and bold italic variations)