Audit Result
UUID: 01a024d9-1954-7398-8c92-489b532f6d75
https://fonco.vn/
Scanned 2 weeks ago
Meta Information
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Title Tag Pass
Found 57 characters. Length is optimal.
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Meta Description Pass
Found 82 characters. Good snippet length.
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Canonical URL Pass
Canonical found: https://fonco.vn
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Viewport Meta Pass
Viewport configured: width=device-width, initial-scale=1
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HTML Lang Pass
Language declared as "en".
Content Structure
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H1 Tag Pass
Exactly one H1 found: "Campaign studio forambitious businessmoments".
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Heading Hierarchy Warning
Detected 1 heading level jumps.
- • Skipped from h2 to h4: "Your next ambitious business moment deserves more than a generic landing page." -> "FONCO JOINT STOCK COMPANY".
Fix: Follow semantic order (h1 -> h2 -> h3) and avoid skipping heading levels.
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Image Alt Text Error
2 of 247 images are missing alt text.
Fix: Add meaningful alt attributes to all informative images for accessibility and image SEO.
Technical Optimization
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HTTPS Pass
Page is served over HTTPS.
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HSTS & HTTPS Redirect Warning
2 HTTPS hardening issues detected.
- • HSTS is missing includeSubDomains.
- • Could not probe the HTTP version of this page.
- • Strict-Transport-Security: max-age=63072000
Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.
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Security Headers Warning
Missing: x-frame-options, x-content-type-options, referrer-policy.
Full HTTP headers (14)
- • age: 0
- • cache-control: private, no-cache, no-store, max-age=0, must-revalidate
- • content-encoding: br
- • content-security-policy: upgrade-insecure-requests
- • content-type: text/html; charset=utf-8
- • date: Fri, 21 Aug 2026 15:03:01 GMT
- • link: </_next/static/media/1bffadaabf893a1e-s.p.3-6t-g6q0vh0a.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/2bbe8d2671613f1f-s.p.0k62hbripvv8p.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/83afe278b6a6bb3c-s.p.2bn3s6zvc0dyp.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/PlusJakartaSans_Italic_VariableFont_wght-s.p.3v5q-utgq6rvh.ttf>; rel=preload; as="font"; crossorigin=""; type="font/ttf", </_next/static/media/PlusJakartaSans_VariableFont_wght-s.p.07wcpaq0qx7tm.ttf>; rel=preload; as="font"; crossorigin=""; type="font/ttf", </_next/static/media/a85fe84266768609-s.p.0h6ig86gwutp4.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/chunks/3fo3n9h4_jnlj.css>; rel=preload; as="style", </_next/static/chunks/06ykw7f-qx13a.css>; rel=preload; as="style"
- • server: Vercel
- • strict-transport-security: max-age=63072000
- • vary: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch
- • x-matched-path: /
- • x-powered-by: Next.js
- • x-vercel-cache: MISS
- • x-vercel-id: iad1::sin1::zzzx2-1787324580195-cffa41f27865
Fix: Add the missing security headers at your reverse proxy or application layer.
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CSP Quality Warning
3 CSP hardening issues detected.
- • CSP is missing object-src 'none'.
- • CSP is missing a base-uri restriction.
- • CSP is missing frame-ancestors protection.
- • Content-Security-Policy: upgrade-insecure-requests
Fix: Tighten Content-Security-Policy by removing unsafe directives and adding object-src, base-uri, and frame-ancestors restrictions.
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Cookie Security Pass
No first-party cookies were set during the initial page load.
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Server response headers do not expose version tokens.
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Cloudflare Proxy Warning
Domain does not appear to be behind Cloudflare.
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Perceived Load Time Warning
Loaded in 2.44s (perceived).
Fix: Reduce payload size, cache static assets, and remove non-critical JS from initial load.
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Render Blocking Resources Warning
1 scripts and 2 styles may block rendering.
- • script: https://fonco.vn/_next/static/chunks/0cz1d0mv5g_q7.js
- • style: https://fonco.vn/_next/static/chunks/3fo3n9h4_jnlj.css
- • style: https://fonco.vn/_next/static/chunks/06ykw7f-qx13a.css
Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.
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Compression Pass
Text-like assets appear compressed.
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Robots.txt Pass
Found robots.txt (200).
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Sitemap File Pass
Found sitemap (200) at https://fonco.vn/sitemap.xml.
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Crawl Directives Warning
No robots meta tag defined.
Fix: Add <meta name="robots" content="index,follow"> (or the intended directive) in <head>.
Accessibility Basics
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Form Labels Pass
All 3 controls are labeled.
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Landmarks Pass
Header, nav, main, and footer landmarks are present.
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Tap Target Size Warning
18 interactive elements appear smaller than 48px.
- • a.nav-link.nav-link-light (Campaign Hubs) - 112x20px
- • a.nav-link.nav-link-light (Approach) - 69x20px
- • a.nav-link.nav-link-light (Perspective) - 85x20px
- • a.nav-link.nav-link-light (Studio) - 46x20px
- • a.nav-link.nav-link-light (Free campaign review) - 158x20px
- • a.group.inline-flex (Tell us what's coming) - 198x40px
- • button.flex.w-full (01Creative Worth Paying Attention To) - 1088x30px
- • button.flex.w-full (02One Strong Hub. Many Useful Formats) - 1088x30px
- • button.flex.w-full (03Designed for Mobile Interactions) - 1088x30px
- • a.text-lg.no-underline (+84 337 276 786) - 147x28px
- • a.text-lg.no-underline ([email protected]) - 130x28px
- • a.text-lg.whitespace-pre-line (22 An Phu St., An Khanh Ward, Ho Chi Minh City) - 404x28px
- • a.transition-colors.hover:text-blue-400 (LinkedIn) - 24x24px
- • a.transition-colors.hover:text-blue-400 (Zalo) - 24x24px
- • a.text-sm.font-medium (LinkedIn) - 84x20px
- • a.text-sm.font-medium (Zalo) - 55x20px
- • button.rounded-full.border (Essential Only) - 110x31px
- • button.rounded-full.bg-[#64ff00] (Accept Cookies) - 116x31px
Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.
Social & Rich Results
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Open Graph Basics Pass
Core Open Graph tags are present.
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Twitter Card Pass
twitter:card set to summary_large_image.
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Structured Data Pass
JSON-LD schema detected.
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PWA Metadata Pass
Manifest and Apple touch icon are configured.
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Social preview metadata and image quality look good for Open Graph/Twitter.
- • GUIDELINE: Optimal og:title length: 40-60 characters (acceptable: 10-70).
- • GUIDELINE: Optimal og:description length: 110-160 characters (acceptable: 50-200).
- • GUIDELINE: Optimal preview image size: 1200x630 pixels.
- • GUIDELINE: Optimal preview image aspect ratio: 1.91:1.
- • GUIDELINE: Optimal preview image file size: under 5 MB.
- • GUIDELINE: Recommended twitter:card: summary_large_image.
- • MEASURED: Image size: 0.67 MB
- • MEASURED: Image dimensions: 1200x630
Links Analysis
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Internal Links Pass
Checked 6 links. No broken internal links found.
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External Links Pass
No broken external links found in checked URLs.
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Link Format Pass
All 20 links use non-empty href values.
Performance & Runtime
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Core Web Vitals: LCP Warning
Largest Contentful Paint: 3.42s.
Fix: Improve LCP by optimizing above-the-fold media, reducing server latency, and inlining critical CSS.
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Core Web Vitals: CLS Pass
Cumulative Layout Shift: 0.000.
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Total Blocking Time estimate: 13ms.
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Broken Assets Pass
No failed CSS/JS/image/font/media requests detected.
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JavaScript Runtime Errors Warning
1 JavaScript runtime issues detected.
- • Request failed: https://fonco.vn/groundwork?_rsc=tXyZJ52UQVBCVsD3 (net::ERR_ABORTED, type: fetch)
Fix: Fix JS files returning 404/failed requests and resolve the listed runtime exceptions.