What powers 
123boeken.nl?
Last seen Aug 2025 · 12 technologies across 9 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Google Font API
since Aug 2023
JavaScript libraries
Miscellaneous
Webpack
since Aug 2023
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Nov 2020
UI frameworks
Web servers
Nginx
since Jan 2019
Webmail
Microsoft 365
since May 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #521,792 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on COBYTES Cobytes B.V. (185.71.63.70, IPv6)
- DNS: sectigoweb.com
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P384, expires Dec 2026
- Common Crawl link graph: rank 14,244,135, 10 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| frame.123boeken.nl | 12 |
| www.123boeken.nl | 12 |
| integratie.123boeken.nl | 1 |