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
Source Sans Pro
(Source Sans Pro is a Sans Serif font designed by Paul D. Hunt. The font family includes six styles, each with regular, italic, bold, and bold italic variations, providing a versatile range of options for designers)