Dark Social

Dark social is social traffic whose source signal is gone — a link shared in a private message, a messenger or an app — that lands in Direct instead of Social.

Dark social is the name for the invisible share: when someone sends your link over WhatsApp, Telegram or an Instagram DM, the recipient's browser often carries no referrer, so that click is entirely real and social yet arrives unlabeled in Direct. It matters doubly in Iran, where a large share of content distribution runs through these messenger channels rather than a public social feed. The result is an inflated Direct and an under-sized Social, and the value of shareable content is undercounted. The only practical way to light part of this darkness is to add UTM to the links you publish for sharing yourself; user-to-user shares stay invisible.