Free Comprehensive Website Audit Tool Released
Free Comprehensive Website Audit Tool Released
â Enter a URL and get an instant comprehensive diagnosis across 15+ categories â
Overview
Byron Inc. (Headquarters: Matsuyama, Ehime, Japan) has launched a free Comprehensive Website Audit Tool that evaluates website quality across 15+ categories â the most comprehensive free audit tool available. AI automatically generates a detailed improvement report.
Background
While many businesses operate websites, technical issues related to performance, security, and SEO often go unnoticed. There has been a growing need for a tool that allows anyone â regardless of technical expertise â to accurately assess their website's current state and take actionable steps toward improvement.
Diagnosis Categories
Simply enter a URL to get an instant diagnosis across all of the following:
Performance
- Mobile and desktop scores based on Google PageSpeed Insights
- Core Web Vitals (LCP, CLS, TBT, FCP, SI)
- Improvement opportunities with estimated time savings
Network & Infrastructure
- Redirect chain analysis â Number of redirects, HTTPâHTTPS detection
- Compression â gzip/Brotli compression check
- CDN detection â Cloudflare, Vercel, AWS CloudFront, and more
- HTTP/3 (QUIC) support detection
- Cache analysis â Cache-Control, ETag, Last-Modified, Age
- Cookie security â Secure, HttpOnly, SameSite attribute checks
Security
- 10 HTTP security headers â CSP, HSTS (with depth analysis), X-Frame-Options, COOP/COEP/CORP, etc.
- SSL/HTTPS configuration status
- Mixed content detection â HTTP resources on HTTPS pages
- External link safety â Links missing rel="noopener"
SEO
- Meta tags, OGP, Twitter Cards, structured data (JSON-LD @type analysis)
- Heading hierarchy check, hreflang tags, robots meta
- robots.txt & sitemap.xml existence and content analysis
- RSS/Atom feed detection, AMP support detection
Resource Analysis
- Script loading strategy â Render-blocking/async/defer/module breakdown
- Image optimization â Lazy loading, dimensions, WebP/AVIF, picture elements
- Resource hints â preconnect, dns-prefetch, preload
- Third-party domains listing with performance impact assessment
- Performance budget violation checks
Accessibility
- ARIA landmarks (main, nav, header, footer)
- Skip navigation, form labels, tabindex misuse
- Button accessible name checks
PWA Readiness
- Web App Manifest detection & validation
- Service Worker registration pattern detection
- Theme color and Apple Web App Meta
Legal Compliance
- Cookie consent banner detection (CookieBot, OneTrust, etc.)
- Privacy policy & terms of service link detection
- Specified Commercial Transactions Act detection (for Japanese e-commerce)
Local SEO
- NAP (Name/Address/Phone) detection
- Social media profile links (X, Facebook, Instagram, LINE, etc.)
Content Quality
- Copyright year freshness (outdated year = abandoned site signal)
- Deprecated HTML tags (
<font>,<center>,<marquee>, etc.) - Charset & internationalization check (Shift_JIS detection)
- Internal link structure (breadcrumbs, site search)
- Soft 404 & meta refresh redirect detection
Technology Detection
- 55+ technologies automatically detected including frameworks, CMS, analytics, ad networks, chat widgets, payment processors â organized by category
Overall Grade
All category scores are combined into an overall grade from A to F, with a 6-axis radar showing Performance, Security, Network, SEO, Accessibility, and Best Practices at a glance.
AI-Generated Detailed Report
Based on the diagnosis results, AI automatically generates a detailed improvement report including:
- Top 3 issues to fix first â Business impact explained with concrete numbers
- Network & performance improvements â Redirect, compression, and cache optimization
- Security improvements â Missing header risks and configuration guides
- SEO & accessibility improvements â Direct ranking impact actions
- Cost & timeline estimates â 3-tier improvement plans (Light/Standard/Full)
The report is delivered via email, completely free of charge.
How to Use
- Visit the Comprehensive Website Audit Tool
- Enter the URL you want to diagnose
- Review your diagnosis results (30-60 seconds)
- Enter your email address to receive the AI-generated report
ⶠTry the Website Audit Tool
Byron Inc.