What powers 
bookerz.nl?
Last seen Sep 2026 · 13 technologies across 7 categories
Analytics
JavaScript libraries
Miscellaneous
Security
UI frameworks
Video players
YouTube
since Feb 2024
Webmail
Microsoft 365
since Feb 2024
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 70% phone
- 30% desktop
Germany
Netherlands
Belgium
Sweden
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.90 / 10 · ranked #650,642 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.8 MB · 19 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INTERCONNECT Interconnect Services B.V. (212.83.254.254)
- DNS: masterdns.nl
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, wildcard, expires Oct 2026
- Common Crawl link graph: rank 14,592,016, 6 hosts
- Verified with: Atlassian
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.bookerz.nl | 9 |
| apps-passasports.bookerz.nl | 8 |