What powers chopin2020.pl?
Last seen Oct 2026 · 8 technologies across 7 categories
Analytics
JavaScript frameworks
React
since Feb 2020
Miscellaneous
PWA
since Aug 2022
Operating systems
CentOS
since Sep 2022
Tag managers
Google Tag Manager
since Feb 2020
Web server extensions
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 60% phone
- 40% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.31 / 10 · ranked #433,631 of all domains
81 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.5 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 7.2 MB · 82 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on NASK-ACADEMIC NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY (148.81.200.237)
- DNS: home.pl
- Email: home.pl
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 702,100, 3 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted