What powers sypesteyn.nl?
Last seen Aug 2026 · 32 technologies across 18 categories
Caching
CMS
Databases
Font scripts
Hosting panels
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Page builders
Performance
Photo galleries
Programming languages
UI Frameworks
Video Players
Web servers
WordPress plugins
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
- 83% phone
- 17% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.11 / 10 · ranked #501,938 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 12.2 MB · 107 requests
- WordPress theme: dt-the7 · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Kasteel-Museum Sypesteyn
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on METAREGISTRAR (194.213.127.31, IPv6)
- DNS: mijndomein.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 3,144,265, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sypesteyn.nl | 25 |
| www.sypesteyn.nl | 18 |
Full technology history →
Report an incorrect detection