Humans identify AI content correctly 28% of the time. Worse than a coin flip. ScanTrace does it in 15 seconds — forensic analysis across three independent layers, with a written explanation of every verdict. We return 3 verdicts: REAL, AI_GENERATED, or INDETERMINATE — because when evidence is weak, the honest answer is we don't know. Built for journalists, fact-checkers, and photo editors. Free: 10 analyses/month, forever. Pro: 400/month · video analysis · PDF certificates.