Average

Score Report

kajo.sk

Scanned on October 8, 2026

PrestaShop
Font Awesome
Owl Carousel
Cloudflare
Last scanned: October 8, 2026
AI verdict

Your store performs decently overall with room to improve. Install a cookie consent tool immediately to meet GDPR requirements. Your SEO and security foundations are solid.

Action plan

Action plan by impact and effort

Every problem found, sorted by how much fixing it helps and how much work the fix takes. Start with the quick wins.

How we rank →

Quick wins

4

High impact, little work. Do these first.

Bigger projects

6

High impact, but the fix needs planning.

+1 more

Small fixes

15

Lower impact, quick to do.

+10 more

Later

35

Lower impact and more work. Plan them once the rest is done.

+30 more

Performance

Weight: 25% · 15 passed · 3 warnings · 2 failed · 2 SPA (verify manually)

What we found: 6.6 MB, 62 requests — too heavy!

Why it matters: Pages over 3 MB take 12+ seconds on 3G. The average e-commerce page is around 2 MB — you're well above that. Even small latency increases measurably reduce sales.

How to fix: Critical: your page is over 3 MB. 1) Convert all images to WebP/AVIF, 2) Lazy load everything below the fold, 3) Remove unused plugins, 4) Combine and minify CSS/JS, 5) Enable brotli compression.
Evidence:PSI-lab· Confidence: high

What we found: Only 0% of 1 scripts optimized — most are render-blocking

Why it matters: 1 render-blocking scripts can add 1-3 seconds to page load. Each synchronous script creates a sequential download-parse-execute chain.

How to fix: Add defer or async to all <script src='...'> tags. Render-blocking scripts are a leading cause of slow FCP. Defer maintains execution order, async does not.
Evidence:HTML-heuristic· Confidence: high

What we found: 2.89s (good: <2.5s) — Core Web Vital

Why it matters: LCP is a Core Web Vital that directly impacts Google rankings. Sites failing LCP are demoted in search results. The most common cause of slow LCP is unoptimized hero images.

How to fix: Optimize your largest element (usually hero image or product image): preload it with <link rel='preload'>, use WebP/AVIF format, set explicit width/height, and serve from CDN.
Evidence:PSI-lab· Confidence: high

What we found: 170 KB unused (CSS: 62 KB, JS: 108 KB)

Why it matters: Unused code is downloaded and parsed but never executed — pure waste. Removing it speeds up parse time and reduces bandwidth.

Note: This check uses heuristic detection and may produce false positives. Manual verification recommended.

How to fix: Remove unused CSS with PurgeCSS or UnCSS. Code-split JavaScript so only needed code loads per page. Audit plugins — each adds CSS/JS.
Evidence:PSI-lab· Confidence: low

What we found: no-store, no-cache, must-revalidate

Why it matters: no-cache/no-store forces browsers to re-download resources on every visit. Repeat visitors load your entire site from scratch every time.

How to fix: Set appropriate cache headers: static assets should have max-age=31536000 with versioned filenames. HTML pages can use max-age=0 with ETag for revalidation.
Evidence:HTTP-header· Confidence: high

5 issues found in Performance. Room for improvement.

Your store doesn't qualify for the Zulien Score Badge yet. Score 80+ to earn it!

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This is an automated heuristic estimate, not a professional audit. Findings reflect publicly observable signals at scan time and may include false positives.Learn about our methodologyReport inaccuracyRemove this report