What powers sefe-energy.nl?
Last seen Jun 2026 · 28 technologies across 16 categories
A/B Testing
Convert
since Nov 2024
Analytics
CMS
Umbraco
since Dec 2023
JavaScript frameworks
JavaScript libraries
Live chat
LiveChat
since Dec 2023
Miscellaneous
Open Graph
since Oct 2022
PWA
since Dec 2022
Operating systems
Windows Server
since Oct 2022
Performance
Priority Hints
since Dec 2023
Reviews
Trustpilot
since Oct 2022
Security
HSTS
since Oct 2022
Tag managers
Google Tag Manager
since Oct 2022
UI frameworks
Web frameworks
Microsoft ASP.NET
since Oct 2022
Web servers
Webmail
Apple iCloud Mail
since Apr 2026
Microsoft 365
since Oct 2022
Audience
- 67% desktop
- 33% phone
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.24 / 10 · ranked #1,212,546 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 1.4 MB · 43 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.sefe-energy.nl | 22 |
| offerte.sefe-energy.nl | 11 |
| mijn.sefe-energy.nl | 9 |
Full technology history →
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Recent changes
- detected Apple iCloud Mail Apr 2026
- dropped Adform Dec 2025
- dropped Microsoft Advertising Dec 2025