Examples of websites using
MT Grotesque
(designed by Steve Matteson, Frank Hinman Pierpont, Monotype.Design Studio and Frank and released by Monotype in 1926)
with
Dia
(Dia is a sans-serif font designed by Florian Schick and Lauri Toikka and released by Schick Toikka in 2014. The font family is available in a range of styles, including regular and condensed widths, each with multiple weights and matching italics)