What powers lucasonderwijs.nl?
Last seen Sep 2026 · 18 technologies across 10 categories
Analytics
Google Analytics
since Jan 2025
Font scripts
Typekit
since Jan 2025
Hosting panels
Plesk
since Jan 2019
JavaScript libraries
Miscellaneous
Programming languages
Rich text editors
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Apple iCloud Mail
since Oct 2025
Microsoft 365
since Aug 2022
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 checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 68% phone
- 32% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.99 / 10 · ranked #575,419 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 7.8 MB · 72 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Lucas Onderwijs
- Founded: 1842
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on CLDIN-NL Your Hosting B.V. part of Your.Online (185.232.250.163)
- DNS: argewebhosting.eu
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed, CAA, MTA-STS
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 6,962,344, 4 hosts
- Verified with: Adobe, Apple Business, Atlassian, Google, Have I Been Pwned
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| lucasonderwijs.nl | 18 |
| www.lucasonderwijs.nl | 18 |