What powers s1w.cz?
Last seen Sep 2026 · 21 technologies across 13 categories
Analytics
Google Analytics
since May 2019
Snowplow Analytics
since Jul 2021
Authentication
Facebook Login
since Jul 2021
CDN
cdnjs
since Jul 2024
Cloudflare
since Jul 2024
Ecommerce
Shoptet
since May 2020
SparkPost
since Aug 2022
Font scripts
Google Font API
since May 2019
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Apr 2025
Programming languages
PHP
since May 2019
UI frameworks
Web frameworks
Nette Framework
since Jun 2021
Web servers
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 69% phone
- 31% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.37 / 10 · ranked #1,039,224 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 3.3 MB · 64 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on VSHOSTING (185.64.219.37)
- Email: s1w.cz
- Email security: SPF (soft fail), DMARC monitor only
- Common Crawl link graph: rank 9,775,844, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Cart Functionality Sep 2026
- detected HTTP/3 May 2026
- detected OpenResty May 2026
- detected Cart Functionality Apr 2026
- dropped PWA Jan 2026
- detected PWA Nov 2025