Audit Result

Found 8 characters. Keep title between 30 and 60 characters.

Fix: Add a unique <title> tag describing the main page intent in 30-60 characters.

Missing meta description.

Fix: Add <meta name="description" content="..."> in <head> with a clear page summary.

Canonical link not found.

Fix: Add <link rel="canonical" href="https://example.com/page"> to avoid duplicate URL ambiguity.

Favicon found and reachable: data:image/svg+xml;base64,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 (HTTP 200).

Viewport configured: width=device-width, initial-scale=1.0

Language declared as "vi".

Exactly one H1 found: "Đăng nhập".

Valid heading flow across 1 headings.

All 0 images include alt text.

Page is served over HTTPS.

1 HTTPS hardening issues detected.

• • Could not probe the HTTP version of this page.
• • Strict-Transport-Security: max-age=31536000; includeSubDomains

Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.

Core security headers were detected.

Content Security Policy looks restrictive and avoids common unsafe directives.

• • Content-Security-Policy: default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self' data:; img-src 'self' blob: data:; frame-src blob:; connect-src 'self' https://oneserver.hquan.dev; object-src 'none'; base-uri 'self'; frame-ancestors 'none'; form-action 'self'; report-uri /csp-reports

No first-party cookies were set during the initial page load.

Versioned headers detected: server.

• • server: nginx/1.29.8

Fix: Hide or remove version tokens in Server and X-Powered-By headers.

Domain does not appear to be behind Cloudflare.

Loaded in 2.29s (perceived).

Fix: Reduce payload size, cache static assets, and remove non-critical JS from initial load.

1 scripts and 1 styles may block rendering.

• • script: https://rmms.hquan.dev/config-3f82442dcb.js
• • style: https://rmms.hquan.dev/styles-6158df407d.css

Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.

1 text resources look uncompressed.

• • https://rmms.hquan.dev/config-3f82442dcb.js (application/javascript)

Fix: Enable Brotli or Gzip compression for HTML, CSS, JS, and JSON responses.

Found robots.txt (200).

Found sitemap (200) at https://rmms.hquan.dev/sitemap.xml.

No robots meta tag defined.

Fix: Add <meta name="robots" content="index,follow"> (or the intended directive) in <head>.

All 2 controls are labeled.

Missing landmarks: nav.

Fix: Use semantic regions (<header>, <nav>, <main>, <footer>) for navigation and assistive tech.

2 interactive elements appear smaller than 48px.

• • button.inline-flex.shrink-0 (Chuyển sang giao diện tối) - 36x36px
• • button.shrink-0.items-center (Đăng nhập) - 336x40px

Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.

Missing og:title or og:description.

Fix: Add og:title and og:description tags to control social preview text.

og:image is missing.

Fix: Add <meta property="og:image" content="https://..."> with a high-quality share image.

twitter:card is missing.

Fix: Add <meta name="twitter:card" content="summary_large_image"> for better previews on X.

No JSON-LD schema scripts found.

Fix: Add JSON-LD structured data matching your page type (Organization, Article, Product, etc.).

Manifest or Apple touch icon is missing.

Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.

5 social preview quality issues detected.

• • ISSUE: og:url should be an absolute URL.
• • ISSUE: og:title should typically be between 10 and 70 characters.
• • ISSUE: og:description should typically be between 50 and 200 characters.
• • ISSUE: Use an absolute URL for og:image or twitter:image.
• • ISSUE: twitter:card is missing.
• • 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.

Fix: Use absolute OG/Twitter URLs, keep metadata lengths in recommended ranges, and provide a preview image near 1200x630 under 5MB.

Checked 0 links. No broken internal links found.

No broken external links found in checked URLs.

All 0 links use non-empty href values.

Largest Contentful Paint: 3.12s.

Fix: Improve LCP by optimizing above-the-fold media, reducing server latency, and inlining critical CSS.

Cumulative Layout Shift: 0.000.

Total Blocking Time estimate: 34ms.

No failed CSS/JS/image/font/media requests detected.

3 JavaScript runtime issues detected.

• • Request failed: https://oneserver.hquan.dev/auth/session (HTTP 401, type: fetch)
• • Request failed: https://oneserver.hquan.dev/auth/session (net::ERR_ABORTED, type: fetch)
• • Failed to load resource: the server responded with a status of 401 () [https://oneserver.hquan.dev/auth/session:1]

Fix: Fix JS files returning 404/failed requests and resolve the listed runtime exceptions.