What powers ef.si?
Last seen Jun 2026 · 29 technologies across 18 categories
A/B Testing
Optimizely
since Feb 2024
Advertising
Microsoft Advertising
since Jun 2025
Reddit Ads
since Feb 2024
Analytics
Google Analytics
since Feb 2024
Linkedin Insight Tag
since Feb 2024
CDN
Amazon CloudFront
since Feb 2025
Amazon S3
since May 2026
cdnjs
since Feb 2024
Cloudflare
since Feb 2024
CMS
Storyblok
since May 2024
Cookie compliance
OneTrust
since Aug 2024
Customer data platform
BlueConic
since Feb 2024
JavaScript frameworks
JavaScript libraries
Load balancers
Amazon ALB
since Feb 2024
Miscellaneous
PaaS
Amazon Web Services
since Feb 2024
Programming languages
Node.js
since Feb 2026
Reviews
Trustpilot
since Feb 2025
Security
Cloudflare Bot Management
since Jun 2025
HSTS
since Feb 2024
Tag managers
Google Tag Manager
since Feb 2024
UI frameworks
Radix UI
since Sep 2024
Tailwind CSS
since Sep 2024
Webmail
Microsoft 365
since May 2024
Audience
Slovenia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.08 / 10 · ranked #1,459,457 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Slovenian
- CDN: Amazon CloudFront, Cloudflare
- Weight: 2.5 MB · 138 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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