# netky.sk — Zulien Score 78/100 (Grade B) > Free e-commerce audit: 78/100 overall score. Company: Chronos Sophia s.r.o.. 100+ checkpoints in 7 categories (Performance, SEO, Security, Mobile, AI Readiness, GDPR, Vulnerability). - **Audited:** https://www.netky.sk/ - **Company:** Chronos Sophia s.r.o. - **Scan date:** 2026-07-14 - **Full report:** https://score.zulien.sk/de/r/netky.sk - **JSON API:** https://euyszfecnvwsqpigioyx.supabase.co/functions/v1/api-v1/score/netky.sk ## Score by category | Category | Score | |---|---| | Performance | 100/100 | | SEO | 77/100 | | Security | 57/100 | | Mobile | 83/100 | | AI Readiness | 51/100 | | GDPR | 73/100 | | Vulnerability | 83/100 | ## Detailed findings ### Performance — 100/100 - **[INFO]** Render-blocking Resources — Not measured — PageSpeed did not return the render-blocking audit for this URL - Evidence: PSI-lab - **[INFO]** Cache-Control Strategy — Not measured — no Cache-Control on the HTML document; static-asset caching was not sampled - Evidence: HTTP-header - **[PASS]** Server Response Time (TTFB) — 13ms - Evidence: PSI-lab - **[PASS]** First Contentful Paint (FCP) — 0.45s - Evidence: PSI-lab - **[PASS]** Largest Contentful Paint (LCP) — 0.80s — Core Web Vital ✓ - Evidence: PSI-lab - **[PASS]** Total Blocking Time (TBT) — 0ms - Evidence: PSI-lab - **[PASS]** Cumulative Layout Shift (CLS) — 0.060 — Core Web Vital ✓ - Evidence: PSI-lab - **[PASS]** Speed Index — 0.73s - Evidence: PSI-lab - **[PASS]** Total Page Weight — 1.1 MB (49 requests) - Evidence: PSI-lab - **[PASS]** Unused Code (CSS + JS) — Only 0 KB of unused code — well optimized - Evidence: PSI-lab - **[PASS]** Text Compression (gzip/brotli) — All text resources properly compressed - Evidence: HTTP-header - **[PASS]** Resource Hints (Preload/Preconnect) — 3 preload, 1 preconnect hint(s) - Evidence: HTML-heuristic - **[PASS]** Lazy Loading — 59% of images use native lazy loading (16/27) - Evidence: HTML-heuristic - **[PASS]** Script Loading Strategy — 100% of scripts use async/defer/module (0 async, 1 defer, 0 module) - Evidence: HTML-heuristic - **[PASS]** CSS File Count — 1 CSS file(s) — well consolidated - Evidence: HTML-heuristic - **[PASS]** Font Preloading — 2 font(s) preloaded — faster text rendering - Evidence: HTML-heuristic ### SEO — 77/100 - **[FAIL]** Structured Data (JSON-LD) - Fix: Add JSON-LD structured data: Product (with price, availability, reviews), Organization, BreadcrumbList, and WebSite schemas. - Evidence: schema - **[WARN]** Meta Description — 70 chars (optimal: 120-160) - Fix: Expand your description to at least 120 characters. Include benefits, a CTA, and your target keyword. - Evidence: HTML-heuristic - **[WARN]** Content Structure (H2 Headings) — Only 1 H2 subheading - Fix: Add more H2 subheadings to break content into scannable sections. Include secondary keywords in H2 tags. - Evidence: HTML-heuristic - **[WARN]** Image Format Optimization — Only 15% next-gen formats — 0 legacy images remain - Fix: Convert remaining JPEG/PNG images to WebP (30-50% smaller) or AVIF (50-70% smaller). Use