What powers sestrynp.cz?
Last seen Sep 2026 · 16 technologies across 11 categories
Analytics
Google Analytics
since Oct 2021
Amazon SES
since Aug 2022
JavaScript libraries
Load balancers
Maps
Google Maps
since Oct 2021
Miscellaneous
Operating systems
Windows Server
since Oct 2021
PaaS
Amazon Web Services
since Aug 2022
UI frameworks
Bootstrap
since Oct 2021
Web frameworks
Microsoft ASP.NET
since Oct 2021
Web servers
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.34 / 10 · ranked #2,802,102 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0.05 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (81.2.194.20)
- DNS: forpsi.cz
- Email: uniwire.cz
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 15,569,399, 2 hosts
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Font API Nov 2025
- dropped lit-element Nov 2025
- dropped lit-html Nov 2025