Audit Result

UUID: 019e090e-93fc-71e9-9ce4-4580bed730d7

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charlon.dev

https://charlon.dev/

Scanned 3 months ago

90
Excellent Score
39 total checks
Passed
31
Warnings
8
Errors
0

Meta Information

  • Title Tag Pass

    Found 44 characters. Length is optimal.

  • Meta Description Pass

    Found 143 characters. Good snippet length.

  • Canonical URL Pass

    Canonical found: https://charlon.dev/

  • Favicon Pass

    Favicon found and reachable: /favicon.svg (HTTP 200).

    Favicon
  • Viewport Meta Pass

    Viewport configured: width=device-width,initial-scale=1

  • HTML Lang Pass

    Language declared as "en".

Content Structure

Technical Optimization

  • HTTPS Pass

    Page is served over HTTPS.

  • HSTS & HTTPS Redirect Warning

    1 HTTPS hardening issues detected.

    • • Could not probe the HTTP version of this page.
    • • Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

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

  • Security Headers Warning

    Missing: content-security-policy.

    Full HTTP headers (17)
    • • access-control-allow-origin: *
    • • alt-svc: h3=":443"; ma=86400
    • • cache-control: public, max-age=0, must-revalidate
    • • cf-cache-status: DYNAMIC
    • • cf-ray: 9f8adbb23b68ea3e-IAD
    • • content-encoding: br
    • • content-type: text/html; charset=utf-8
    • • date: Fri, 08 May 2026 19:26:48 GMT
    • • nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
    • • permissions-policy: interest-cohort=(), browsing-topics=()
    • • referrer-policy: strict-origin-when-cross-origin
    • • report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=%2FGBR4T7VR6%2FJu0y7Uc%2BupNdpqnvs7pBB0LLxfaLjno5XqtQcnQjS8WsGPuP574Zd8QTxKejVsoPcvixj6eRqM0l4sc3uDQ0P7oFnqUSes%2Be9PLtB%2FUGjqZloiPvWk1ZIor%2BKNMRHWVALjg%3D%3D"}]}
    • • server: cloudflare
    • • strict-transport-security: max-age=63072000; includeSubDomains; preload
    • • vary: accept-encoding
    • • x-content-type-options: nosniff
    • • x-frame-options: DENY

    Fix: Add the missing security headers at your reverse proxy or application layer.

  • CSP Quality Warning

    Content-Security-Policy header is missing.

    • • Missing Content-Security-Policy header.

    Fix: Define a restrictive Content-Security-Policy and avoid unsafe directives such as unsafe-inline and unsafe-eval.

  • Cookie Security Pass

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

  • Server Version Disclosure Pass

    Server response headers do not expose version tokens.

  • Cloudflare Proxy Pass

    Domain appears to be behind Cloudflare.

    • • server: cloudflare
    • • cf-cache-status: DYNAMIC
    • • cf-ray: 9f8adbb23b68ea3e-IAD
  • Perceived Load Time Pass

    Loaded in 0.20s (perceived).

  • Render Blocking Resources Warning

    0 scripts and 1 styles may block rendering.

    • • style: https://charlon.dev/assets/index-CmCHQdlj.css

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

  • Compression Pass

    Text-like assets appear compressed.

  • Robots.txt Pass

    Found robots.txt (200).

  • Sitemap File Pass

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

  • Crawl Directives Pass

    Robots meta found: index,follow,max-image-preview:large

Accessibility Basics

  • Form Labels Pass

    All 0 controls are labeled.

  • Landmarks Pass

    Header, nav, main, and footer landmarks are present.

  • Tap Target Size Warning

    3 interactive elements appear smaller than 48px.

    • • a.site-brand (charlon.dev) - 92x28px
    • • a (Blog) - 34x28px
    • • a.lang-switch (Voir cette page en français) - 37x32px

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

Social & Rich Results

  • Open Graph Basics Pass

    Core Open Graph tags are present.

  • Open Graph Image Pass

    og:image is present and absolute.

    Open Graph Image
  • Twitter Card Pass

    twitter:card set to summary.

  • Structured Data Pass

    JSON-LD schema detected.

  • PWA Metadata Warning

    Manifest or Apple touch icon is missing.

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

  • Open Graph/Twitter Quality Warning

    3 social preview quality issues detected.

    • • ISSUE: Preview image is below recommended size (1200x630).
    • • ISSUE: Preview image aspect ratio (1.00) differs from the recommended ~1.91:1.
    • • ISSUE: twitter:card should be summary_large_image for richer previews.
    • • 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: 0.02 MB
    • • MEASURED: Image dimensions: 346x346

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

Links Analysis

  • Internal Links Pass

    Checked 11 links. No broken internal links found.

  • External Links Warning

    4 external links returned errors or timed out.

    • • https://plan.eco/ (network-error)
    • • https://github.com/CharlonTank/claude-sleep-preventer (HTTP 404)
    • • https://github.com/CharlonTank/elm-lsp (HTTP 404)
    • • https://www.linkedin.com/in/charlesassus/ (HTTP 404)

    Fix: Replace dead external URLs or point to working alternatives.

  • Link Format Pass

    All 12 links use non-empty href values.

Performance & Runtime