What powers 
opero.cz?
Last seen Aug 2026 · 31 technologies across 18 categories
Analytics
CDN
CMS
Cookie compliance
Font scripts
Hosting panels
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Operating systems
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 53% desktop
- 47% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.46 / 10 · ranked #408,656 of all domains
90 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 13.6 MB · 149 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Opero
- Founded: 2016
- Country: Czech Republic
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on WEDOS (89.221.214.108)
- DNS: webglobe.cz
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 1,180,104, 5 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.opero.cz | 23 |
| opero.cz | 16 |
Full technology history →
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Recent changes
- detected Cloudflare Bot Management Oct 2025