What powers p3k.cz?
Last seen Oct 2026 · 38 technologies across 19 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Video players
Web servers
Widgets
WordPress plugins
AI Crawlers
Blocks 13 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
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
The other 20 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
Content Signals:
search=yes ai-train=no declared in robots.txt
- Oct 2026 googleother added to robots.txt
- Oct 2026 ccbot added to robots.txt
- Oct 2026 claude-web added to robots.txt
- Oct 2026 bytespider added to robots.txt
- Oct 2026 Content Signals changed
- Oct 2026 amazonbot added to robots.txt
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.86 / 10 · ranked #1,860,167 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 3.4 MB · 97 requests
- WordPress theme: chapterone · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.72.50, IPv6)
- DNS: Cloudflare DNS
- Email: Active 24
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,339,888, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.p3k.cz | 33 |
| p3k.cz | 30 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Redis Jul 2026
- dropped Redis Object Cache Jul 2026
- detected Unpkg Jun 2026
- dropped Apache HTTP Server May 2026
- dropped Ubuntu May 2026
- detected Cloudflare Browser Insights Apr 2026
- detected Sendgrid Mar 2026
- detected Cloudflare Dec 2025
- detected Cloudflare Bot Management Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025