Examples of websites using
Helvetica
(Helvetica is a sans serif font designed by Max Miedinger, Linotype Design Studio, and released by Linotype in 1957. It is available in a wide range of styles and weights)
with
GT Pressura Mono
(GT Pressura Mono is a monospace font designed by Dominik Huber and Marc Kappeler, and released by Grilli Type in 2012. The font family includes multiple styles and weights, offering a variety of options for typographic projects)