Audit Result
UUID: 01a06fa8-7812-7260-a594-9bdd4b600fa9
https://jblanco.dev/
Scanned 1 day ago
Meta Information
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Title Tag Pass
Found 41 characters. Length is optimal.
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Meta Description Warning
Found 54 characters. Keep description around 70-160 characters.
Fix: Add <meta name="description" content="..."> in <head> with a clear page summary.
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Canonical URL Pass
Canonical found: https://jblanco.dev/
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Viewport Meta Pass
Viewport configured: width=device-width
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HTML Lang Pass
Language declared as "en".
Content Structure
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H1 Tag Pass
Exactly one H1 found: "Senior Frontend Consultant".
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Heading Hierarchy Pass
Valid heading flow across 15 headings.
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Image Alt Text Pass
All 2 images include alt text.
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.
- • Missing Strict-Transport-Security header.
- • Could not probe the HTTP version of this page.
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: strict-transport-security, content-security-policy, x-frame-options, x-content-type-options, referrer-policy.
Full HTTP headers (11)
- • alt-svc: h3=":443"; ma=86400
- • cache-control: public, max-age=0, must-revalidate
- • cf-cache-status: HIT
- • cf-ray: a362385138bf3e81-IAD
- • content-encoding: zstd
- • content-type: text/html
- • date: Sat, 05 Sep 2026 03:41:44 GMT
- • nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
- • report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=BigOtAXPolm14tqmcT5ha8XM9hG18Wcj%2FHGf3UTAJ5bvvf4Yx86T8fwwRY2LLnKPNI1DDmQRz7YNOwI1Szx9Ikvbw5KGeoDx%2FY11voBhm638DE97ktp1M4ebOidjAOHu6H%2FmNGv53EExXg%3D%3D"}]}
- • server: cloudflare
- • server-timing: cfCacheStatus;desc="HIT" cfEdge;dur=21,cfOrigin;dur=0
Fix: Add the missing security headers at your reverse proxy or application layer.
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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.
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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 Pass
Domain appears to be behind Cloudflare.
- • server: cloudflare
- • cf-cache-status: HIT
- • cf-ray: a362385138bf3e81-IAD
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Perceived Load Time Pass
Loaded in 0.35s (perceived).
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Render Blocking Resources Warning
0 scripts and 3 styles may block rendering.
- • style: https://jblanco.dev/_astro/index.Dwu9MM8O.css
- • style: https://jblanco.dev/_astro/index.BCrriCfJ.css
- • style: https://jblanco.dev/_astro/_slug_.Tcp2Mapk.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://jblanco.dev/sitemap-index.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 0 controls are labeled.
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Landmarks Warning
Missing landmarks: nav, footer.
Fix: Use semantic regions (<header>, <nav>, <main>, <footer>) for navigation and assistive tech.
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Tap Target Size Warning
10 interactive elements appear smaller than 48px.
- • button#radix-«r11R6».inline-flex.items-center (Select language) - 52x32px
- • button#radix-«r11Ra».inline-flex.items-center (Toggle theme) - 36x36px
- • button.inline-flex.items-center (All Projects) - 102x41px
- • button.inline-flex.items-center (React) - 70x41px
- • button.inline-flex.items-center (Vue.js) - 77x41px
- • button.inline-flex.items-center (TypeScript) - 102x41px
- • a.inline-flex.items-center (View case study →) - 141x39px
- • button.pc__arrow (Previous project) - 40x38px
- • button.pc__arrow (Next project) - 40x38px
- • a.projects-section__all (View all work→) - 128x17px
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 Warning
Manifest or Apple touch icon is missing.
Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.
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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: 0.20 MB
- • MEASURED: Image dimensions: 1908x1070
Links Analysis
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Internal Links Pass
Checked 5 links. No broken internal links found.
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External Links Warning
1 external links returned errors or timed out.
- • https://www.linkedin.com/in/jesus-blanco-08682112a/ (HTTP 999)
Fix: Replace dead external URLs or point to working alternatives.
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Link Format Pass
All 7 links use non-empty href values.
Performance & Runtime
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Core Web Vitals: LCP Pass
Largest Contentful Paint: 0.35s.
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Core Web Vitals: CLS Pass
Cumulative Layout Shift: 0.082.
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Total Blocking Time estimate: 46ms.
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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.
- • THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values. pe [https://jblanco.dev/_astro/StarsBackgroundIsland.h8x8RAWr.js:5]
Fix: Fix JS files returning 404/failed requests and resolve the listed runtime exceptions.