Curious about the design behind ndl.go.jp? SiteFontCheck scanned their live CSS architecture and identified 2 unique font families. The website relies heavily on <noto sans jp, arial, sans-serif> for its main text elements, paired with <-apple-system, blinkmacsystemfont, segoe ui, roboto, oxygen, ubuntu, cantarell, open sans, helvetica neue, sans-serif> as fallback options. Below is the precise map of font sizes, weights, and text elements used across their site.