What powers sperling.app?
Last seen Aug 2026 · 13 technologies across 9 categories
CDN
Cloudflare
since Oct 2025
Ecommerce
Cart Functionality
since Oct 2025
JavaScript frameworks
Miscellaneous
Webpack
since Jun 2026
PaaS
Vercel
since Jun 2026
Performance
Priority Hints
since Jun 2026
Programming languages
Node.js
since Jun 2026
Security
HSTS
since Jun 2026
UI frameworks
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- CDN: Vercel
- Weight: 0.5 MB · 41 requests
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
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Recent changes
- detected Cart Functionality Jul 2026
- detected Cloudflare Jul 2026
- dropped Cloudflare Browser Insights Jul 2026
- detected HSTS Jul 2026
- dropped HTTP/3 Jul 2026
- dropped Lovable Jul 2026
- detected Next.js Jul 2026
- detected Next.js App Router Jul 2026
- detected Node.js Jul 2026
- dropped Open Graph Jul 2026
- detected Priority Hints Jul 2026
- detected Radix UI Jul 2026
- detected React Jul 2026
- dropped React Router Jul 2026
- detected shadcn/ui Jul 2026
- detected Tailwind CSS Jul 2026
- detected Vercel Jul 2026
- detected Webpack Jul 2026
- detected HSTS Jun 2026
- detected Next.js Jun 2026
- detected Next.js App Router Jun 2026
- detected Node.js Jun 2026
- detected Priority Hints Jun 2026
- detected Vercel Jun 2026
- detected Webpack Jun 2026
- detected Lovable Dec 2025
- detected Cloudflare Browser Insights Nov 2025
- detected HTTP/3 Nov 2025