What powers biblio.bg?
Last seen Aug 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since Aug 2018
Authentication
Facebook Login
since Jun 2021
Ecommerce
Cart Functionality
since Aug 2020
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
PHP
since Aug 2018
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Feb 2022
UI frameworks
Web servers
Apache HTTP Server
since Aug 2018
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
- 79% phone
- 21% desktop
Bulgaria
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.30 / 10 · ranked #1,123,965 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 1.3 MB · 87 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on NETERRA-AS (87.121.91.6)
- DNS: neterra.net
- Email: photo-forum.net
- Email security: SPF (hard fail), no DMARC record
- SSL: Sectigo, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 851,690, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| biblio.bg | 14 |
| www.biblio.bg | 14 |