What powers 
prb.bg?
Last seen Aug 2026 · 19 technologies across 13 categories
Analytics
CDN
Font Scripts
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
Tag managers
UI frameworks
Video players
Web Servers
Webmail
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| prokura | #87 | 0 |
| jleba | #46 | 0 |
| fuw portal | #44 | 0 |
| glaven | #90 | 0 |
| edrev | #55 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 80% phone
- 20% desktop
Bulgaria
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.34 / 10 · ranked #179,960 of all domains
171 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Bulgarian
- Weight: 2.1 MB · 40 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- National Investigative Service
- Founded: 1979
- Country: Bulgaria
From Wikidata (CC0).
Infrastructure
- Hosted on IS-BG-AS Bulgarian ISP (217.145.175.20)
- DNS: Cloudflare DNS
- Email: prb.bg
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed, CAA
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 479,066, 10 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| e-services.prb.bg | 9 |
| webmail.prb.bg | 8 |
| prb.bg | 7 |
| www.prb.bg | 7 |
Full technology history →
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Recent changes
- detected Nginx Jun 2026
- detected cdnjs Dec 2025
- detected Google Hosted Libraries Dec 2025
- detected Popper Dec 2025
- dropped cdnjs Nov 2025
- dropped Google Hosted Libraries Nov 2025
- dropped Popper Nov 2025