What powers indexbooks.nl?
Last seen Jun 2026 · 13 technologies across 9 categories
CDN
Font scripts
Google Font API
since Sep 2020
JavaScript libraries
Miscellaneous
Popper
since Sep 2021
Operating systems
UNIX
since Sep 2020
Programming languages
PHP
since Sep 2021
Security
HSTS
since Sep 2022
UI frameworks
Web servers
Audience
- 73% desktop
- 27% phone
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.04 / 10 · ranked #1,521,344 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 1.1 MB · 24 requests
Homepage as crawled by the HTTP Archive, Jul 2026.