Anecdotally, they do have some very strong direct&#x2F;organic traffic based on word of mouth and brand awareness (that doesn&#x27;t mean zero CAC of course)<p>I don&#x27;t know where this derives its data from, but it seems to support it:<p><a href="http:&#x2F;&#x2F;www.similarweb.com&#x2F;website&#x2F;airbnb.com#overview" rel="nofollow">http:&#x2F;&#x2F;www.similarweb.com&#x2F;website&#x2F;airbnb.com#overview</a>