What powers 
um.bydgoszcz.pl?
Last seen Sep 2026 · 47 technologies across 20 categories
Analytics
Authentication
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Photo galleries
Programming languages
Security
UI frameworks
Video players
Web frameworks
Web server extensions
Web servers
Webmail
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 82% phone
- 18% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.45 / 10 · ranked #410,006 of all domains
74 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Polish
- Weight: 14.2 MB · 56 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Bydgoszcz City Council
From Wikidata (CC0).
Infrastructure
- Hosted on PL-UMBYD-NET (185.174.154.131)
- DNS: um.bydgoszcz.pl
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: cyber_Folks, RSA 4096, wildcard, expires Mar 2027
- Common Crawl link graph: rank 765,667, 16 hosts
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| energia.um.bydgoszcz.pl | 21 |
| rezerwacje.um.bydgoszcz.pl | 15 |
| www.rezerwacje.um.bydgoszcz.pl | 15 |
| ankiety.um.bydgoszcz.pl | 11 |
| typo3.um.bydgoszcz.pl | 10 |
| bip.um.bydgoszcz.pl | 9 |
| um.bydgoszcz.pl | 8 |
| www2.um.bydgoszcz.pl | 8 |
| tt.um.bydgoszcz.pl | 4 |
| www.um.bydgoszcz.pl | 4 |
| archiwumbip.um.bydgoszcz.pl | 3 |
Full technology history →
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Recent changes
- detected Select2 Mar 2026
- dropped Google Hosted Libraries Jan 2026
- detected jQuery CDN Dec 2025