What powers 
duchenneheroes.nl?
Last seen Sep 2026 · 19 technologies across 12 categories
Analytics
CDN
Cloudflare
since Nov 2021
CMS
Framer Sites
since Dec 2023
Cookie compliance
CookieYes
since Oct 2024
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
React
since Jun 2020
JavaScript libraries
Miscellaneous
HTTP/3
since Mar 2024
Open Graph
since Dec 2023
Performance
Priority Hints
since Dec 2023
Security
Tag managers
Google Tag Manager
since Jul 2020
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
- 76% phone
- 24% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.09 / 10 · ranked #512,127 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 26.7 MB · 109 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (31.43.160.6)
- Email: no MX record returned, SPF names Mailgun
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 3,700,172, 5 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted