The Good Site — Interactive Website Audit Playground
Aura Velocity Pro
Engineered with ultra-responsive dual-density foam and a full-length carbon fiber propulsion plate.
The 4 Pillars of a Good Website
Click any pillar below to inspect the real production code, headers, and performance metrics.
Shop Aura Velocity Pro: engineered with carbon fiber plates & responsive cushioning. Enjoy free 2-day shipping...
{
"@context": "https://schema.org/",
"@type": "Product",
"name": "Aura Velocity Pro",
"image": "https://store.aura.dev/images/velocity-pro.webp",
"description": "Engineered with ultra-responsive dual-density foam and a full-length carbon fiber propulsion plate.",
"brand": {
"@type": "Brand",
"name": "Aura Athletics"
},
"offers": {
"@type": "Offer",
"url": "https://store.aura.dev/footwear/velocity-pro",
"priceCurrency": "USD",
"price": "129.00",
"availability": "https://schema.org/InStock"
},
"aggregateRating": {
"@type": "AggregateRating",
"ratingValue": "4.9",
"reviewCount": "842"
}
}Website Auditor's Checklist
Review and check off each point you inspected. Your verification status is automatically saved on your machine.
Certificate issued by trusted CA, zero mixed content warnings, and Strict-Transport-Security header enabled.
Passwords are masked by default with an explicit eye toggle, real-time strength meter, and never logged in plain text.
Title tag length is 50-60 characters, description is 120-160 characters, keyword-focused without keyword stuffing.
Valid Product schema containing price, currency, rating, and stock availability for Google rich snippets.
LCP under 2.5 seconds (measured at 0.8s), CLS is 0.00, and INP is under 50ms with Brotli compression.
Edge CDN caching and fast origin response delivers initial HTML packet in ~120ms.
Item steppers (+/-), dynamic tax and shipping thresholds, clear discounts, and instant UI state updates.
No plain-text credit card transmission; card data is tokenized in-browser via AES-256 before mock submit.
Strict single H1, logical H2/H3 nesting, header, main, nav, section, and article landmarks.
Text contrast exceeds 7:1 ratio (12.4:1 measured) and all product imagery has functional alt text for screen readers.
Spot The Good Practice — Step-by-Step Audit Quiz
Answer one question at a time with instant answer validation and engineering explanations.
Why must password inputs be masked by default with an optional visibility toggle?
Audit Your Own HTML & Security Headers (100% Client-Side)
Paste your site's <head> HTML or HTTP response headers to check SEO lengths, CLS image dimensions, Schema.org JSON-LD, and OWASP security headers instantly inside your browser.
Configured: Forces HTTPS and defeats SSL stripping.
Configured: Restricts script origins to mitigate XSS.
Configured: Prevents checkout UI redressing in hidden iframes.
Configured: Blocks browser MIME confusion on uploaded files.
Configured: Prevents URL token leakage on cross-origin navigation.
Ready to witness the Horror Website?
Now that you've experienced the production benchmark, step into The Bad Site: Comic Sans, expired certificates, plain-text password leaks, and checkout errors.
Reference Engineering Standards Covered in The Good Site
Compare with The Bad Site →Every tab in The Good Site maps directly to verifiable production engineering criteria: HTTPS with HSTS preload, strict Content Security Policy nonces preventing reflected and stored XSS, accessible checkout keyboard flows, zero-CLS reserved layout dimensions, edge-cached packet roundtrips, and clean Schema.org canonical SEO signals. Pair this sandbox with our 14 Secure Architecture Guides for copyable configuration diffs.