What powers ssum.cz?
Last seen Oct 2026 · 24 technologies across 14 categories
CMS
Cookie compliance
Databases
MySQL
since Jan 2019
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since Oct 2023
Programming languages
PHP
since Jan 2019
Rich text editors
Video players
YouTube
since Jan 2019
Web servers
Webmail
Google Workspace
since Aug 2022
WordPress plugins
WordPress themes
HashThemes Total
since Feb 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.96 / 10 · ranked #3,700,532 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 4.2 MB · 111 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- SŠUM - Střední škola uměleckomanažerská
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on VSHOSTING (93.185.104.24)
- DNS: pipni.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 17,252,097, 4 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted