What powers 
netzwerk-lernen.de?
Last seen Aug 2026 · 19 technologies across 10 categories
Analytics
Ecommerce
JavaScript libraries
Miscellaneous
Payment processors
Search engines
Security
Tag managers
UI frameworks
Web servers
AI Crawlers
Blocks 10 of 33 AI crawlers we track by name in its robots.txt, restricts 3 more. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- meta-externalfetcher Blocked
- ChatGPT-User Allowed
- Claude-User Allowed
- Perplexity-User Allowed
The other 17 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
- Sep 2026 llms.txt appeared
- Sep 2026 claude-searchbot added to robots.txt
- Sep 2026 claude-user: Allowed (was Blocked)
- Sep 2026 perplexity-user added to robots.txt
- Sep 2026 perplexitybot: Restricted (was Blocked)
AI Crawlers
10 of 33 AI crawlers blocked
Standards: llms.txt
Audience
- 61% phone
- 37% desktop
- 2% tablet
Germany
Austria
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.89 / 10 · ranked #656,637 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on KTK KEVAG Telekom GmbH (212.7.187.144)
- DNS: ktk.de
- Email: 4teachers.de
- Email security: SPF (hard fail), DMARC reject
- SSL: Sectigo, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,236,567, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| netzwerk-lernen.de | 15 |
| www.netzwerk-lernen.de | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Doofinder Jun 2026
- detected PayPal Jun 2026
- dropped DataTables Nov 2025