cl0q

www.crossref.org

Crossref

Crossref runs open infrastructure to link the world's research outputs. 25,000+ members, 167 countries, 2.1 billion monthly API queries.

Status200 OK — live & indexed by cl0q
First seen2026-05-15
Last crawled2026-06-14
IPv444.195.221.2
NetworkAS14618 Amazon.com, Inc. · United States
CNAMEwww.crossref.org
Languageen-us
ServerAmazonS3