What powers zero23.nl?
Last seen Oct 2026 · 20 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
Webmail
WordPress plugins
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- GPTBot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
1 of 33 AI crawlers blocked
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.34 / 10 · ranked #8,199,140 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.8 s |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Dutch (Netherlands)
- CDN: Cloudflare
- Weight: 10.7 MB · 72 requests
- WordPress theme: breakdance-zero · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- ZERO23 Health Studios
- Profiles: Facebook
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.51.70, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 37,746,387, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Google Font API Sep 2026
- detected Breakdance Jul 2026
- detected Cloudflare Jul 2026
- detected Cloudflare Browser Insights Jul 2026
- detected Cloudflare Rocket Loader Jul 2026
- detected Google Analytics Jul 2026
- detected Google Font API Jul 2026
- detected Google Tag Manager Jul 2026
- detected Google Workspace Jul 2026
- detected GSAP Jul 2026
- detected HSTS Jul 2026
- detected HTTP/3 Jul 2026
- detected Lozad.js Jul 2026
- detected MySQL Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected RankMath SEO Jul 2026
- detected Swiper Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected Unpkg Jul 2026
- detected WordPress Jul 2026
- detected WP Fastest Cache Jul 2026
- detected Twitter Emoji (Twemoji) Dec 2025