載っbe published, appear (in a publication)+てTe-form (conjunctive)+るProgressive/resultative aspect
verb · present indicativeRare#31,812
be posted, be listed, appearColloquial contraction of 載っている; commonly used for information appearing in a book, newspaper, website, or other publication.
JA: このサイトに詳しい説明が載ってる。
EN: A detailed explanation is posted on this website.