What powers zrzv.nl?
Last seen Aug 2026 · 26 technologies across 17 categories
Analytics
Google Analytics
since Mar 2020
Caching
CDN
cdnjs
since Jun 2026
Cloudflare
since Jun 2026
CMS
WordPress
since Mar 2020
Cookie compliance
CookieYes
since Jul 2021
Databases
MySQL
since Mar 2020
Font scripts
Google Font API
since Mar 2020
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Mar 2020
Security
HSTS
since Jun 2026
Really Simple SSL & Security
since Apr 2024
UI frameworks
Video players
Webmail
Microsoft 365
since Sep 2024
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.89 / 10 · ranked #3,887,163 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch
- Weight: 15.2 MB · 32 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Zwolsche Roei- en Zeilvereeniging
- Founded: 1887
- Country: Netherlands
From Wikidata (CC0).
Infrastructure
- Hosted on Microsoft (213.199.128.74)
- DNS: oni.be
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 36,696,749, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.zrzv.nl | 20 |
| zrzv.nl | 10 |