Curious about the design behind github.io? SiteFontCheck scanned their live CSS architecture and identified 2 unique font families. The website relies heavily on <mona sans, monasansfallback, -apple-system, blinkmacsystemfont, segoe ui, helvetica, arial, sans-serif, apple color emoji, segoe ui emoji> for its main text elements, paired with <-apple-system, blinkmacsystemfont, segoe ui, noto sans, helvetica, arial, sans-serif, apple color emoji, segoe ui emoji> as fallback options. Below is the precise map of font sizes, weights, and text elements used across their site.