What powers construction21.org?
Last seen Dec 2025 · 13 technologies across 9 categories
Analytics
Cloudflare Browser Insights
since Jul 2025
Matomo Analytics
since Aug 2020
CDN
cdnjs
since Oct 2024
Cloudflare
since Nov 2021
Mailjet
since Nov 2024
Font scripts
Bootstrap Icons
since Sep 2023
JavaScript libraries
Swiper
since Sep 2023
Miscellaneous
Performance
Priority Hints
since Aug 2024
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Aug 2018
Audience
- 62% desktop
- 36% phone
- 1% tablet
Morocco
France
Italy
Spain
Belgium
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.88 / 10 · ranked #52,039 of all domains
728 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Full technology history →
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Recent changes
- dropped Cloudflare Rocket Loader Oct 2025