What powers esj.nl?
Last seen Jun 2026 · 27 technologies across 18 categories
A/B Testing
Google Optimize
since Sep 2021
Advertising
Microsoft Advertising
since Oct 2024
Analytics
Google Analytics
since Feb 2019
Hotjar
since Apr 2021
Leadinfo
since Mar 2026
Linkedin Insight Tag
since Jun 2022
CDN
Cloudflare
since Jun 2025
CMS
Concrete CMS
since Sep 2020
Cookie compliance
Documentation
Zendesk
since Aug 2022
Microsoft 365
since Aug 2022
Sendgrid
since Jan 2023
Font scripts
Font Awesome
since Sep 2020
Google Font API
since Feb 2024
Hosting panels
Plesk
since Apr 2025
JavaScript libraries
Miscellaneous
Programming languages
PHP
since Sep 2020
Security
Tag managers
Google Tag Manager
since Feb 2019
UI frameworks
Bootstrap
since Sep 2020
Video players
YouTube
since Sep 2020
Web servers
Nginx
since Feb 2019
Audience
- 56% desktop
- 44% phone
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.26 / 10 · ranked #1,180,890 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch
- Weight: 5.9 MB · 194 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Leadinfo Mar 2026