What powers naboj.org?
Last seen Aug 2026 · 27 technologies across 13 categories
Analytics
Facebook Pixel
since Nov 2021
Plausible
since Apr 2023
Authentication
Facebook Login
since Jul 2021
CDN
cdnjs
since May 2023
Cloudflare
since May 2023
Google Hosted Libraries
since May 2023
jsDelivr
since Sep 2023
Unpkg
since Nov 2022
Mailjet
since Aug 2022
Font scripts
Google Font API
since Nov 2022
JavaScript libraries
Miscellaneous
Operating systems
Debian
since Jan 2019
Programming languages
Security
Cloudflare Bot Management
since Nov 2023
HSTS
since Nov 2022
UI frameworks
Web frameworks
Nette Framework
since Jun 2021
Web servers
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 51% phone
- 49% desktop
Poland
Czechia
Germany
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.60 / 10 · ranked #387,053 of all domains
136 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.3 MB · 36 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SANET Slovak Academic Network (158.195.86.172)
- DNS: cuni.cz
- Email: cuni.cz
- Email security: SPF (neutral), DMARC monitor only, CAA
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 2,722,259, 12 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| chemistry.naboj.org | 11 |
| junior.naboj.org | 11 |
| math.naboj.org | 11 |
| physics.naboj.org | 11 |
| math.old.naboj.org | 10 |
| online.math.naboj.org | 10 |
| physics.old.naboj.org | 9 |
| junior.old.naboj.org | 8 |
Full technology history →
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Recent changes
- dropped Font Awesome May 2026