Examples of websites using
Noto Serif
(Noto Serif is a serif font designed by Google and released in 2012 as part of the Noto font family, which aims to support all languages with a harmonious look and feel. It includes a wide range of styles, with regular, italic, bold, and bold italic variations available)
with
Open Sans
(Open Sans is a sans-serif font designed by Steve Matteson. It offers a wide range of styles, including regular, italic, bold, bold italic, and light)