What powers openerfgoed.nl?
Last seen Sep 2026 · 29 technologies across 16 categories
Advertising
Analytics
Caching
CMS
Cookie compliance
Databases
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
WordPress plugins
WordPress themes
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.37 / 10 · ranked #1,043,404 of all domains
25 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 3.7 MB · 104 requests
- WordPress theme: hello-elementor (child: hello-theme-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- OPEN Erfgoed
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on CLDIN-NL Your Hosting B.V. part of Your.Online (62.221.216.24, IPv6)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Oct 2026
- Common Crawl link graph: rank 16,558,391, 2 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Turnstile Sep 2026
- detected Microsoft Advertising Jan 2026