What powers koldhart.cz?
Last seen Sep 2026 · 27 technologies across 13 categories
Analytics
Cloudflare Browser Insights
since Apr 2026
CDN
Bunny
since Jan 2025
Cloudflare
since Apr 2026
CMS
WordPress
since Jan 2025
Databases
MySQL
since Jan 2025
Ecommerce
Cart Functionality
since May 2025
Font scripts
Bunny Fonts
since Jan 2025
Twitter Emoji (Twemoji)
since Jan 2026
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since May 2025
Programming languages
PHP
since Jan 2025
Security
HSTS
since Apr 2026
Really Simple SSL & Security
since May 2025
WordPress plugins
RankMath SEO
since Nov 2025
Smash Balloon Instagram Feed
since Jun 2025
WebFactory Maintenance
since Aug 2025
WordPress themes
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
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 1.4 MB · 65 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- koldhart
- Industry: Retail (declares
ClothingStore)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.3.49, IPv6)
- DNS: Cloudflare DNS
- Email: koldhart.cz
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Bunny Sep 2026
- detected Bunny Fonts Sep 2026
- detected WebFactory Maintenance Sep 2026
- dropped Bunny Aug 2026
- dropped Bunny Fonts Aug 2026
- dropped WebFactory Maintenance Aug 2026
- dropped Cart Functionality Jun 2026
- dropped Complianz Jun 2026
- dropped core-js Jun 2026
- dropped jQuery UI Jun 2026
- dropped Priority Hints Jun 2026
- dropped Twitter Emoji (Twemoji) Jun 2026
- dropped Underscore.js Jun 2026
- dropped WooCommerce Jun 2026
- detected Bunny May 2026
- detected Bunny Fonts May 2026
- dropped Litespeed Cache May 2026
- dropped Nginx May 2026
- detected WebFactory Maintenance May 2026
- dropped Bunny Jan 2026
- dropped Bunny Fonts Jan 2026
- dropped WebFactory Maintenance Jan 2026
- dropped Swiper Nov 2025
- dropped Yoast SEO Nov 2025