AI Authority, the metric that says where to start

AI Authority (AA) is a metric from 0 to 100 that says how much a given AI engine leans on a given source, where 100 is the source that engine cites most. It is a count of detections over a rolling 30-day window, scaled against the leading source of the entire corpus of sources Epovest knows, and it is computed separately for each engine. Epovest publishes it on every source of its Atlas, so a list of sources to appear in comes with an order.

AA = 100 x the detections of the source / the detections of that engine's leading source, over the same 30-day window and read from the same daily snapshot. It is a count put on a scale, with no constant to calibrate and no weighting to arbitrate, which is what makes a movement attributable: an AA that rises rose because the engine cited that source more.

No. The scale is computed over the entire corpus of sources Epovest knows, across every survey run on the platform. You read the AA of the sources your own surveys revealed, but the 100 those numbers are measured against is the leader of the whole corpus. That is what makes the metric stable: restricting the set on display never rescales it, so a source at 61 keeps its 61 as your coverage widens, and your number means the same thing as anyone else's.

They answer different questions. A domain authority score in SEO estimates how a site is likely to rank in search results, from link signals. AI Authority counts something observed instead: how often an AI engine actually leaned on that source when answering real prompts, over the last 30 days. It is measured per engine, from archived answers, which is why the same domain can sit high on one engine and low on another.

Because each engine has its own leading source, so its own scale, and because engines genuinely read different things. The rankings of two engines are close to disjoint on the same market. Keeping one AA per engine preserves that: it tells you a source is worth the effort for one audience and a different source is worth it for another.

Pick the engine that matters most to your market, sort your Atlas by its AI Authority, and work the list from the top. The first entries are the sources that engine leans on hardest, so a mention obtained there is repeated more often than the same mention lower down. Record each corroboration you obtain with its date, and the citation curves tell you what it was followed by.