What powers serum.com.pl?
Last seen Sep 2026 · 6 technologies across 4 categories
JavaScript libraries
Security
HSTS
since Sep 2022
Web servers
Apache HTTP Server
since May 2017
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 76% desktop
- 24% phone
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.03 / 10 · ranked #1,531,555 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Polish (Poland)
- Weight: 0.4 MB · 29 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on KAMSOFT (193.104.45.50)
- DNS: kamsoft.pl
- Email: no MX record returned
- SSL: Certum, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 12,827,074, 5 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ncm.serum.com.pl | 6 |
| neuca.serum.com.pl | 5 |
| polmed.serum.com.pl | 5 |
| pzu.serum.com.pl | 5 |
| serum.com.pl | 5 |
| www.serum.com.pl | 5 |
| s2.serum.com.pl | 4 |