Curious about the design behind yammer.com?

SiteFontCheck scanned their live CSS architecture and identified 2 unique font families.

The website relies heavily on segoe ui webfont, -apple-system, helvetica neue, lucida grande, roboto, ebrima, nirmala ui, gadugi, segoe xbox symbol, segoe ui symbol, meiryo ui, khmer ui, tunga, lao ui, raavi, iskoola pota, latha, leelawadee, microsoft yahei ui, microsoft jhenghei ui, malgun gothic, estrangelo edessa, microsoft himalaya, microsoft new tai lue, microsoft phagspa, microsoft tai le, microsoft yi baiti, mongolian baiti, mv boli, myanmar text, cambria math for its main text elements, paired with segoe ui, helvetica neue, lucida grande, roboto, ebrima, nirmala ui, gadugi, segoe xbox symbol, segoe ui symbol, meiryo ui, khmer ui, tunga, lao ui, raavi, iskoola pota, latha, leelawadee, microsoft yahei ui, microsoft jhenghei ui, malgun gothic, estrangelo edessa, microsoft himalaya, microsoft new tai lue, microsoft phagspa, microsoft tai le, microsoft yi baiti, mongolian baiti, mv boli, myanmar text, cambria math as fallback options.

Below is the precise map of font sizes, weights, and text elements used across their site.