What powers walburgcollege.nl?
Last seen Oct 2026 · 36 technologies across 19 categories
Advertising
Analytics
CMS
Cookie compliance
Databases
Font scripts
JavaScript libraries
Maps
Miscellaneous
Performance
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
Webmail
WordPress plugins
WordPress themes
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
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.42 / 10 · ranked #2,646,170 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 6.0 MB · 155 requests
- WordPress theme: astra (child: schoolthema) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Walburg College
- Industry: Arts and entertainment (declares
Event)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on NL-BIT BIT BV (185.173.20.83, IPv6)
- DNS: sqr.nl
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 18,978,770, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| walburgcollege.nl | 32 |
| www.walburgcollege.nl | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Fluent Forms Jul 2026
- dropped Complianz May 2026
- detected Cookiebot Apr 2026
- detected Google Analytics Apr 2026
- detected Google Tag Manager Apr 2026
- detected Microsoft Advertising Apr 2026
- detected YouTube Apr 2026