Arbor is indexed in Web of Science: Arts & Humanities Citation Index (A&HCI) y Current Contents - Arts & Humanities; SCOPUS, CWTS Leiden Ranking (Journal indicators), ERIH Plus, REDIB, DOAJ, Francis, Index Islamicus, Periodical Index Online (PIO), Regesta Imperii, Dialnet, Sherpa Romeo and ÍnDICEs CSIC. It is indexed in Latindex Catalogue 2.0 and has obtained the FECYT Seal of Quality.