What powers fs-tools.es?
Last seen Jun 2026 · 12 technologies across 8 categories
Analytics
Dynatrace
since Sep 2025
Font scripts
Font Awesome
since Jan 2019
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
RUM
Dynatrace RUM
since Sep 2025
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Jan 2019
Web frameworks
Microsoft ASP.NET
since Sep 2021
Audience
- 79% desktop
- 21% phone
Spain
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.74 / 10 · ranked #4,706,436 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 3.9 MB · 44 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Dynatrace Sep 2025
- detected Dynatrace RUM Sep 2025