What powers englisch-lehrer.com?
Last seen Sep 2026 · 20 technologies across 12 categories
Analytics
Authentication
CDN
JavaScript frameworks
Live chat
Miscellaneous
PaaS
Performance
Programming languages
Security
UI frameworks
Webmail
AI Crawlers
Restricts 14 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Restricted
- Bytespider Restricted
- CCBot Restricted
- ClaudeBot Restricted
- cohere-training-data-crawler Restricted
- Google-Extended Restricted
- GPTBot Restricted
Search and AI assistants
- Amazonbot Restricted
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Claude-User Restricted
- Perplexity-User Restricted
The other 19 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
AI Crawlers
14 of 33 AI crawlers restricted
Standards: llms.txt
Audience
- 57% phone
- 43% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.67 / 10 · ranked #20,236,053 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- CDN: Cloudflare
- Weight: 0.9 MB · 73 requests
- 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 Cloudflare (172.66.40.135, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 29,606,419, 4 hosts
- Verified with: Apple Business, Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.englisch-lehrer.com | 20 |
| englisch-lehrer.com | 16 |
Full technology history →
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Recent changes
- detected Vercel Analytics Sep 2026
- detected Vercel Speed Insights Sep 2026
- dropped Font Awesome May 2026
- dropped Joomla May 2026
- dropped PHP May 2026
- detected PWA Mar 2026
- detected Clerk Feb 2026
- detected Cloudflare Bot Management Feb 2026
- detected HSTS Feb 2026
- detected Next.js Feb 2026
- detected Next.js App Router Feb 2026
- detected Node.js Feb 2026
- detected Priority Hints Feb 2026
- detected React Feb 2026
- detected Tailwind CSS Feb 2026
- detected Vercel Feb 2026
- detected Webpack Feb 2026