Examples of websites using
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)
with
Calibre
(Calibre is a sans-serif font designed by Kris Sowersby and released by Klim Type Foundry in 2011. The font family consists of 10 styles, including regular, italic, bold, and bold italic variations)