What powers calcuso.de?
Last seen Oct 2026 · 26 technologies across 17 categories
Advertising
Analytics
CDN
Databases
Documentation
Ecommerce
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Nov 2026.
Training crawlers
- GPTBot Allowed
Search and AI assistants
- OAI-SearchBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 30 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
AI Crawlers
No AI crawlers blocked
Audience
- 85% phone
- 14% desktop
- 2% tablet
Germany
Austria
France
Luxembourg
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.35 / 10 · ranked #2,778,624 of all domains
15 referring domains · OpenPageRank
Search traffic
33 est. monthly organic visits (US)
67 keywords in Google's top 30
Core Web Vitals
| LCP | 2.6 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- CDN: Cloudflare
- Weight: 3.4 MB · 87 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.26.0.214, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 12,158,449, 2 hosts
- Verified with: Brevo, Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Turnstile May 2026