What powers 
hisgis.nl?
Last seen Aug 2026 · 14 technologies across 11 categories
Comment systems
JavaScript libraries
Maps
Miscellaneous
Performance
Turbo
since Feb 2026
Programming languages
Ruby
since Feb 2026
Security
HSTS
since Sep 2022
UI frameworks
Tailwind CSS
since Apr 2026
Web frameworks
Ruby on Rails
since Feb 2026
Web servers
Nginx
since Aug 2025
Webmail
Microsoft 365
since May 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 68% desktop
- 32% phone
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.76 / 10 · ranked #273,370 of all domains
95 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 1.6 MB · 18 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SURFNET-NL SURFnet, The Netherlands (195.169.88.174)
- DNS: socialhistoryservices.org
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, CAA
- SSL: HARICA, ECDSA P256, expires Feb 2027
- Common Crawl link graph: rank 760,644, 7 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| osm.hisgis.nl | 12 |
| beta.hisgis.nl | 4 |
| hisgis.nl | 4 |
| www.hisgis.nl | 4 |
| maps.hisgis.nl | 3 |