What powers 
vakbondshistorie.nl?
Last seen Sep 2026 · 22 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Mar 2026
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Twitter Emoji (Twemoji)
since Jan 2019
Hosting panels
Plesk
since Nov 2020
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
LiteSpeed
since Nov 2020
WordPress plugins
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
- 66% phone
- 34% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.94 / 10 · ranked #620,501 of all domains
51 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 2.3 MB · 66 requests
- WordPress theme: stichtingvhv · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on DUOCAST-AS (45.82.188.46, IPv6)
- DNS: cloud86.nl
- Email: vakbondshistorie.nl
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 1,062,165, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| vakbondshistorie.nl | 20 |
| www.vakbondshistorie.nl | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Mar 2026
- detected Cloudflare Bot Management Mar 2026
- detected hCaptcha Mar 2026
- detected Contact Form 7 Feb 2026
- dropped Nginx Jan 2026
- dropped OpenResty Jan 2026
- detected Nginx Nov 2025
- detected OpenResty Nov 2025