What powers 21-5.dk?
Last seen Jun 2026 · 22 technologies across 15 categories
Advertising
Microsoft Advertising
since Jul 2021
Analytics
Google Analytics
since Feb 2019
CDN
Cloudflare
since May 2022
Cookie compliance
Documentation
Zendesk
since Sep 2023
Font scripts
Google Font API
since Dec 2021
JavaScript frameworks
Next.js App Router
since Mar 2026
React
since Dec 2021
JavaScript libraries
Swiper
since Apr 2025
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Mar 2019
PaaS
Azure
since Aug 2022
Performance
Priority Hints
since Feb 2025
Programming languages
Node.js
since Aug 2022
Security
Cloudflare Bot Management
since May 2022
HSTS
since Jun 2023
UI frameworks
Headless UI
since Aug 2022
Tailwind CSS
since Apr 2022
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022
Audience
- 56% phone
- 44% desktop
Denmark
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.82 / 10 · ranked #4,229,682 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Danish
- CDN: Cloudflare
- Weight: 42.0 MB · 50 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.21-5.dk | 18 |
| membersite.21-5.dk | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Sentry May 2026
- detected Next.js App Router Mar 2026
- detected Priority Hints Mar 2026