What powers werfft.cz?
Last seen Aug 2026 · 25 technologies across 15 categories
Analytics
Google Analytics
since May 2021
CDN
cdnjs
since Aug 2022
Cloudflare
since Aug 2022
CMS
Comment systems
Databases
MySQL
since May 2021
Font scripts
Twitter Emoji (Twemoji)
since Oct 2022
JavaScript libraries
Maps
Miscellaneous
Programming languages
PHP
since May 2021
UI frameworks
Video players
Web servers
Nginx
since Jul 2023
Webmail
Apple iCloud Mail
since May 2025
Google Workspace
since Aug 2022
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Aug 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.71 / 10 · ranked #4,908,488 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 4.5 MB · 69 requests
- WordPress theme: werfftocs · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Hetzner (178.104.232.194)
- DNS: savana.cz
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 34,133,713, 2 hosts
- Verified with: Apple Business, Google, Meta Business
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
- dropped WP-Optimize Jul 2026
- detected Twitter Emoji (Twemoji) Jun 2026
- detected HTTP/3 Apr 2026
- dropped Twitter Emoji (Twemoji) Apr 2026
- detected Twitter Emoji (Twemoji) Feb 2026
- dropped Google Font API Jan 2026