What powers 
surfnet.nl?
Last seen Apr 2025 · 16 technologies across 8 categories
JavaScript frameworks
JavaScript libraries
Isotope
since Jul 2022
Underscore.js
since Aug 2018
Miscellaneous
RSS
since Mar 2025
Programming languages
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Aug 2018
Web servers
Apache HTTP Server
since Aug 2018
Wikis
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Open Page Rank
7.21 / 10 · ranked #30,614 of all domains
358 referring domains · OpenPageRank
Organisation
- SURFnet
- Founded: 1989
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Registered Mar 1987 (39 years) via SURF B.V.
- Hosted on SURFNET-NL SURFnet, The Netherlands (145.100.190.243, IPv6)
- DNS: ja.net
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed, CAA
- SSL: HARICA, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 44,684, 68 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| wiki.surfnet.nl | 13 |
| dashboard.surfnet.nl | 5 |
| pgp.surfnet.nl | 3 |