What powers ytong.cz?
Last seen Sep 2026 · 49 technologies across 25 categories
Advertising
Analytics
CDN
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
Operating systems
PaaS
Page builders
Programming languages
RUM
Security
Tag managers
UI frameworks
Video players
Web servers
Widgets
WordPress plugins
AI Crawlers
Blocks 11 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- Claude-SearchBot Allowed
- OAI-SearchBot Allowed
- PerplexityBot Allowed
The other 19 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 meta-externalagent added to robots.txt
- Aug 2026 oai-searchbot added to robots.txt
- Aug 2026 amazonbot added to robots.txt
- Aug 2026 applebot-extended added to robots.txt
- Aug 2026 google-extended added to robots.txt
- Aug 2026 anthropic-ai added to robots.txt
AI Crawlers
11 of 33 AI crawlers blocked
Audience
- 54% phone
- 46% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.17 / 10 · ranked #470,158 of all domains
55 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 100 ms |
| CLS | 0.3 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.5 MB · 331 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Xella CZ
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on FILOO-ASN Rhedaer Stra?e 25 (93.190.68.22)
- Email: animatec.cz
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,410,079, 8 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| eshop.ytong.cz | 25 |
| xellasoutez.ytong.cz | 22 |
| stavtesyq.ytong.cz | 12 |
| www.ytong.cz | 12 |
| yqstavba.ytong.cz | 10 |