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.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2025-09-13 |
| Last crawled | 2026-06-15 |
| IPv4 | 18.204.164.133 |
| Network | AS14618 Amazon.com, Inc. · United States |
| CNAME | crossref.org |
| Mail (MX) | aspmx.l.google.com.,aspmx3.googlemail.com.,alt1.aspmx.l.google.com.,alt2.aspmx.l.google.com.,aspmx2.googlemail.com. |
| Language | en-us |
| Server | AmazonS3 |