What powers 
libr.rv.ua?
Last seen Aug 2026 · 17 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Font Awesome
since Feb 2020
JavaScript Frameworks
JavaScript libraries
Axios
since Apr 2024
Miscellaneous
Open Graph
since Dec 2023
Operating systems
Ubuntu
since Feb 2024
Windows Server
since Jun 2020
Programming languages
PHP
since Jun 2020
Security
HSTS
since Apr 2024
UI frameworks
Bootstrap
since Feb 2024
Web frameworks
Laravel
since Feb 2024
Web server extensions
Web Servers
Nginx
since Nov 2017
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 59% phone
- 41% desktop
Ukraine
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.88 / 10 · ranked #668,363 of all domains
87 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Ukrainian
- Weight: 1.7 MB · 60 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Rivne State Oblast Library
- Founded: 1940
- Country: Ukraine
From Wikidata (CC0).
Infrastructure
- Hosted on MIROHOST (89.184.79.210)
- DNS: mirohost.net
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Oct 2026
- Common Crawl link graph: rank 66,126, 19 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| audio.libr.rv.ua | 10 |
| libr.rv.ua | 9 |
| www.libr.rv.ua | 9 |
| catalog.libr.rv.ua | 8 |
| calendar.libr.rv.ua | 6 |
| mistecka.libr.rv.ua | 6 |
| collections.libr.rv.ua | 5 |
| photo.libr.rv.ua | 5 |
| bookforum.libr.rv.ua | 4 |