What powers plussystem.cz?
Last seen Sep 2026 · 30 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
Tag managers
Web frameworks
Web servers
Webmail
WordPress plugins
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
- 75% desktop
- 25% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.72 / 10 · ranked #2,130,463 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 1.4 MB · 119 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- plusSystem
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Websupport (37.9.175.212, IPv6)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 17,390,472, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected HTTP/3 Sep 2026
- detected Microsoft 365 Sep 2026
- detected OpenResty Sep 2026