What powers 
callebaut.org?
Last seen Sep 2026 · 6 technologies across 6 categories
Analytics
Miscellaneous
Programming languages
Web frameworks
Web servers
Widgets
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 70% desktop
- 30% phone
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.37 / 10 · ranked #176,357 of all domains
309 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 1.6 MB · 44 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Registered Oct 2000 (25 years) via Gandi SAS, renews Oct 2027
- Hosted on Leaseweb (78.159.99.205)
- DNS: opalstack.com
- Email: opalstack.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,076,174, 5 hosts
- Verified with: Brevo, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| vincent.callebaut.org | 6 |
| www.vincent.callebaut.org | 6 |