What powers 
collectieoverijssel.nl?
Last seen Sep 2026 · 27 technologies across 16 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Programming languages
Security
SEO
Tag managers
UI frameworks
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 71% desktop
- 29% phone
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #352,306 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 6.6 MB · 105 requests
- WordPress theme: collectie-overijssel · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Overijssel Heritage Collections, Deventer branch
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on Leaseweb (85.17.83.193)
- DNS: starthost.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 655,511, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Priority Hints May 2026
- dropped WP Rocket May 2026
- detected Priority Hints Mar 2026
- detected WP Rocket Mar 2026