Initially, the service provided by dblp was started at the database systems and logic programming (dblp) research group at the University of Trier, Germany, and focused on publications from this field of research. Through the years, dblp gradually expanded toward all fields of computer science, while the acronym survived. At times, the label "Digital Bibliography & Library Project" has been adopted as a backronym for dblp, but we are no longer actively using this label.
You may now accept "dblp computer science bibliography", or just "dblp", as the proper name of this web service. The initial acronym has lost its meaning.