What powers cls-sofia.org?
Last seen Aug 2026 · 11 technologies across 9 categories
CMS
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Web server extensions
Web servers
Webmail
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Bulgaria
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.13 / 10 · ranked #487,778 of all domains
62 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 4.4 MB · 68 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Centre for Liberal Strategies
- Founded: 1994
- Country: Bulgaria
From Wikidata (CC0).
Infrastructure
- Hosted on TILDA-IE-1 (194.48.203.181)
- DNS: Network Solutions
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 475,267, 2 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.cls-sofia.org | 6 |
| cls-sofia.org | 5 |
Full technology history →
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Recent changes
- dropped DDoS-Guard Jun 2026