What powers osram.cz?
Last seen Aug 2026 · 20 technologies across 14 categories
Advertising
Microsoft Advertising
since Dec 2024
Appointment scheduling
Calendly
since Oct 2023
CDN
jsDelivr
since Jul 2020
Cookie compliance
Usercentrics
since Jul 2023
JavaScript frameworks
JavaScript libraries
Programming languages
Java
since Aug 2021
Search engines
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Video players
Twitch Player
since Oct 2023
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 71% phone
- 25% desktop
- 3% tablet
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.25 / 10 · ranked #443,394 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 1.4 MB · 66 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on SPACENET SpaceNET AG (194.97.137.240, IPv6)
- DNS: netnames.net
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Sectigo, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 2,528,364, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Algolia Jul 2026
- detected Apache HTTP Server Jul 2026
- detected Bootstrap Jul 2026
- detected Calendly Jul 2026
- detected core-js Jul 2026
- detected Dropzone Jul 2026
- detected Google Tag Manager Jul 2026
- detected HSTS Jul 2026
- detected Java Jul 2026
- detected jQuery Jul 2026
- detected jQuery UI Jul 2026
- detected jsDelivr Jul 2026
- detected LazySizes Jul 2026
- detected Microsoft 365 Jul 2026
- detected Microsoft Advertising Jul 2026
- detected Modernizr Jul 2026
- detected Moment.js Jul 2026
- detected Mustache Jul 2026
- detected Twitch Player Jul 2026
- detected Usercentrics Jul 2026