What powers 
swimfun.nl?
Last seen Aug 2026 · 55 technologies across 24 categories
Analytics
Authentication
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Maps
Marketing automation
Miscellaneous
Mobile frameworks
Performance
Programming languages
Security
UI frameworks
Video players
Web frameworks
Web servers
Widgets
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 claudebot removed from robots.txt
- Sep 2026 gptbot removed from robots.txt
- Aug 2026 *: Restricted (was Allowed)
- Aug 2026 claudebot added to robots.txt
- Aug 2026 gptbot added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 94% phone
- 6% desktop
Netherlands
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.73 / 10 · ranked #749,841 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 3800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 9.0 MB · 147 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on CJ2-AS (91.208.60.56)
- DNS: rapidehosting.nl
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P384, expires Nov 2026
- Common Crawl link graph: rank 14,630,872, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.swimfun.nl | 43 |
| swimfun.nl | 39 |
| tickets.swimfun.nl | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Bunny Jul 2026
- dropped Bunny Fonts Jul 2026
- detected Bunny May 2026
- detected Bunny Fonts May 2026
- dropped Bunny Apr 2026
- dropped Bunny Fonts Apr 2026