What powers sis-construction.cz?
Last seen Aug 2026 · 15 technologies across 11 categories
Caching
WP Rocket
since May 2026
CMS
Databases
MySQL
since May 2026
JavaScript libraries
Swiper
since May 2026
Miscellaneous
Open Graph
since May 2026
RSS
since May 2026
Performance
Priority Hints
since May 2026
Programming languages
PHP
since May 2026
Web servers
Nginx
since May 2026
Webmail
Apple iCloud Mail
since Jul 2026
Microsoft 365
since May 2026
WordPress plugins
WordPress themes
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
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.43 / 10 · ranked #31,145,114 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 1.0 MB · 56 requests
- WordPress theme: hello-elementor (child: hello-elementor-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on DigitalOcean (159.89.22.69)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 78,980,050
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Apple iCloud Mail Jul 2026