# muziker.sk — Zulien Score 67/100 (Grade C)
> Free e-commerce audit: 67/100 overall score. 100+ checkpoints in 7 categories (Performance, SEO, Security, Mobile, AI Readiness, GDPR, Vulnerability).
- **Audited:** https://www.muziker.sk
- **Scan date:** 2026-06-07
- **Full report:** https://score.zulien.sk/hu/r/muziker.sk
- **JSON API:** https://euyszfecnvwsqpigioyx.supabase.co/functions/v1/api-v1/score/muziker.sk
## Score by category
| Category | Score |
|---|---|
| Performance | 65/100 |
| SEO | 79/100 |
| Security | 55/100 |
| Mobile | 70/100 |
| AI Readiness | 55/100 |
| GDPR | 67/100 |
| Vulnerability | 71/100 |
## Detailed findings
### Performance — 65/100
- **[FAIL]** Total Blocking Time (TBT) — 652ms (good: <200ms)
- Fix: Critical: audit all JavaScript. 1) Remove unused plugins/modules, 2) Defer analytics and chat widgets, 3) Code-split large bundles, 4) Move heavy computation to web workers.
- **[FAIL]** Cumulative Layout Shift (CLS) — 0.271 (good: <0.1) — Core Web Vital FAILING
- Fix: Urgent layout stability issues. 1) Add width/height to all ![]()
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