DEJAN verifies sources by normalizing and parsing grounded model outputs from providers like Google and OpenAI, separating selected versus unselected citations to distinguish actively cited references from merely browsed search results. The platform then assesses the factual fidelity of these sources using the Veracity Engine, which compares the source page content directly against generated response segments to measure survived facts, omissions, and distortions. Finally, automated link liveness probing tests citation URLs through SSRF-guarded HTTP checks, unwrapping dead or non-responsive links to protect draft integrity before publication.