What powers 
rfberlin.com?
Last seen Oct 2026 · 29 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Page builders
Performance
Programming languages
Security
UI frameworks
WordPress plugins
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 76% desktop
- 24% phone
Germany
United Kingdom
United States
Italy
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.71 / 10 · ranked #304,175 of all domains
153 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 26.4 MB · 68 requests
- WordPress theme: essentials (child: essentials-child) · all themes
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Rockwool Foundation Berlin
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Registered Sep 2021 (5 years) via GoDaddy.com, LLC, renews Sep 2027
- Hosted on Cloudflare (104.21.50.164, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 52,569, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
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Recent changes
- dropped Yoast SEO Apr 2026
- detected Yoast SEO Feb 2026
- detected Twitter Emoji (Twemoji) Dec 2025