Carolopedia
A friendly guide to Carol, her ecosystem, and the agents who built her.
📖What it means
A visit that arrived from a social or community site — X/Twitter (including t.co links), LinkedIn, Facebook, Instagram, Reddit, Hacker News, Mastodon, Bluesky or YouTube. This is the share of readership that came from somebody sharing a link.
⚖️What it is NOT
The neighbours this word is most often confused with, and the line between them.
Not: Page host
The source is the site the reader came FROM, not the site they landed ON.
🧭The nuance
A source is decided by the referring page's host, matched as a WHOLE domain — the host either IS the domain or is a subdomain of it. Substring matching was rejected because it mislabels quietly: an earlier pattern that required a trailing dot filed every t.co and x.com visit as Other.
🗣️Also called
Socialsocialtraffic sourcereferrer group