What powers 
sosej.cz?
Last seen Aug 2026 · 12 technologies across 10 categories
Advertising Networks
Google AdSense
since Jun 2016
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Aug 2026
Cookie compliance
Funding Choices
since Feb 2024
Font scripts
Google Font API
since Apr 2019
JavaScript Frameworks
Miscellaneous
RSS
since Dec 2022
Security
Tag managers
Google Tag Manager
since Apr 2020
Web Servers
Nginx
since Jun 2016
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
- 77% phone
- 23% desktop
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.53 / 10 · ranked #866,741 of all domains
57 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.6 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.2 MB · 105 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on COOLHOUSING-AS Vinohradska 190 (87.236.194.77)
- DNS: blueboard.cz
- Email: blueboard.cz
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 12,215,698, 6 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Aug 2026
- detected Cloudflare Bot Management Aug 2026
- detected Google Font API Nov 2025