Site Inspector by Bright Interaction

One-click website audit: security, performance, SEO, privacy & accessibility. 130+ checks, A+ to F grading, free.

Site Inspector runs 130+ automated checks on any website in one click. No account needed, no data sent anywhere. Everything runs locally in your browser. You get instant grades (A+ to F) across 6 categories: SECURITY (21 checks) - HTTPS, HSTS, CSP quality analysis - Security headers (X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy) - SRI verification for third-party scripts - Mixed content detection - security.txt (RFC 9116) presence SEO (55+ checks) - Title tag length and quality - Meta description CTA detection (English + Swedish) - Heading hierarchy validation (H1 through H6) - Open Graph and Twitter Card completeness - OG image dimensions (1200x630 check) - Structured data / JSON-LD detection and type listing - FAQ schema vs visible content validation - Canonical tag validation (tracking param aware) - Hreflang tags - External outbound link count - Descriptive alt text quality (not just presence) - llms.txt for AI search readiness - robots.txt and XML sitemap detection - SERP preview PERFORMANCE (18 checks) - Core Web Vitals: LCP, INP, CLS - TTFB, FCP, DOM Content Loaded - Page weight and request count - Image format, lazy loading, dimensions - Font loading (font-display, file count, Google Fonts family count) - Inline CSS bloat detection - Render-blocking script detection - HTTP/2+ protocol check PRIVACY (12 checks) - Consent banner detection (16 platforms supported) - Pre-consent tracking detection (GDPR violation) - Cookie count and security audit - Third-party domain count - Tracker identification - AI training bot blocking check - Privacy policy detection (warns on external-only policies) - Terms and cookie policy detection ACCESSIBILITY (21 checks) - WCAG AA color contrast analysis (skips image/gradient backgrounds) - Landmark roles (main, nav, header, footer) - Skip navigation link - Form labels and button labels - Image alt text - Video captions - Heading order and structure - Keyboard focus indicators TECH STACK DETECTION - Identifies frameworks, CMS platforms, page builders, hosting providers, and analytics tools - Detects 30+ technologies across 5 categories EXPORT OPTIONS - PDF report with full findings - CSV export for spreadsheets KEYWORD ANALYSIS - Top keyword extraction with density percentages - Keyword distribution across headings vs body Built by Bright Interaction (https://brightinteraction.com) - a security and compliance company based in Sweden. We use this tool ourselves to audit 599+ websites. 100% free. No ads. No tracking. No account required. ## Category Developer Tools ## Language English ## Privacy Policy URL https://brightinteraction.com/privacy ## Homepage URL https://brightinteraction.com/platform ## What's New in 1.4.0 - Redirect detection: prevents mixing headers from one site with content from another after navigation - Report URL now shows the actual analyzed page, not the tab URL (fixes wrong URL in reports) - Performance scoring rebalanced: DOMContentLoaded and Full Load thresholds relaxed and graduated (no more F grades for 3-second loads) - TTFB "good" threshold raised from 300ms to 500ms (realistic for most hosting) - URL length check now uses canonical URL, no longer penalizes pages for UTM/tracking parameters - CSP wildcard detection: no longer flags subdomain patterns (*.example.com) as bare wildcards - Consent banner detection: added CookieScript, HubSpot Cookie Banner - Third-party domain classification: added Bing, Snapchat, Storyblok, Squarespace, Trustpilot, Voyado, New Relic, and more - Cookie classification: added Didomi, CookieScript consent cookies - HubSpot domains (hs-banner, hs-analytics, hs-scripts, etc.) now properly categorized ## What's New in 1.3.1 - Accuracy improvements from testing against Forbes, Apple, CDON, Nelly, Brownells, AlternativeTo, Product Hunt, and more - FAQ schema: validates question text appears on page (any layout, not just accordions) - Heading hierarchy: correctly fails when H1 is missing - CTA detection: now supports Swedish meta descriptions - Canonical check: no longer flags tracking params as mismatches - Privacy policy: warns when policy links to external domain instead of your own - Contrast analysis: skips text over images/gradients (eliminates false 1:1 ratios) - TTFB thresholds aligned with Google guidance (300ms/800ms) - Plaintext email detection: filters out logged-in user emails in navigation - Empty link checks: SEO and Accessibility now use consistent criteria ## What's New in 1.3.0 - 12 new checks (130+ total, up from 80+) - AI search readiness: llms.txt detection, AI training bot blocking check - SEO: meta description CTA analysis, alt text quality, external link count, FAQ schema validation, title truncation warning, OG image dimensions - Privacy: AI training bot detection in robots.txt - Performance: Google Fonts count, inline CSS bloat detection - Tech stack: page builder detection - Removed: outreach email generator