Curious about the design behind aaos.org? SiteFontCheck scanned their live CSS architecture and identified 11 unique font families. The website relies heavily on <open_sans-semibold, helvetica-bold, arial-bold, sans-serif> for its main text elements, paired with <open_sans-bold, helvetica-bold, arial-bold, sans-serif> and <-apple-system, blinkmacsystemfont, segoe ui, roboto, helvetica neue, arial, sans-serif> as fallback options, and 8 additional. Below is the precise map of font sizes, weights, and text elements used across their site.