What powers 
opencitations.net?
Last seen Jul 2026 · 10 technologies across 7 categories
Caching
Varnish
since Sep 2025
CDN
jsDelivr
since Dec 2022
Font scripts
Font Awesome
since Sep 2022
JavaScript libraries
Operating systems
Windows Server
since Sep 2025
UI frameworks
Animate.css
since Sep 2025
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| citation net | #8 | 3 |
| citation model | #98 | 0 |
| openaccess api | #44 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
5.43 / 10 · ranked #167,296 of all domains
209 referring domains · OpenPageRank
Search traffic
3 est. monthly organic visits (US)
3 keywords in Google's top 30
Organisation
- OpenCitations
- Founded: 2010
From Wikidata (CC0).
Infrastructure
- Hosted on ASGARR Consortium GARR (137.204.119.90)
- DNS: Gandi
- Email: no MX record returned, SPF names Gandi
- Email security: SPF (neutral)
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 623,453, 13 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| search.opencitations.net | 7 |
| opencitations.net | 6 |
| api.opencitations.net | 5 |
| download.opencitations.net | 5 |