What powers 
ggdc.net?
Last seen Aug 2020 · 3 technologies across 2 categories
Analytics
Google Analytics
since Jul 2020
JavaScript libraries
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
5.41 / 10 · ranked #170,195 of all domains
320 referring domains · OpenPageRank
Organisation
- Maddison Project
From Wikidata (CC0).
Infrastructure
- Hosted on SURFNET-NL SURFnet, The Netherlands (129.125.36.140)
- DNS: surfnet.nl
- Email: rug.nl
- Email security: no SPF record, no DMARC record, CAA
- SSL: HARICA, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 517,148, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted