What powers 
ortho.nl?
Last seen Sep 2026 · 28 technologies across 17 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Search engines
Security
UI frameworks
Web frameworks
Webmail
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 Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
- Sep 2026 llms.txt appeared
- Aug 2026 llms.txt removed
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.05 / 10 · ranked #536,187 of all domains
52 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- CDN: Cloudflare
- Weight: 1.2 MB · 55 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- ORTHO Bibliotheek
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.46.126, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 2,689,878, 5 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| webshop.ortho.nl | 18 |
| ortho.nl | 17 |
| bibliotheek.ortho.nl | 16 |
Full technology history →
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Recent changes
- detected Algolia Jul 2026
- dropped Priority Hints Feb 2026
- detected Twitter Emoji (Twemoji) Jan 2026
- detected Cloudflare Turnstile Dec 2025
- detected Cloudflare Browser Insights Nov 2025