Link Checker - 無料リンク切れチェッカー

🔗 無料のリンク切れチェッカー！404エラー、デッドリンク、リダイレクトを即座に検出。高速・シンプル・軽量。

🔗 Link Checker - Free & Fast Broken Link Finder The ultimate free broken link checker for web developers, SEO professionals, and content editors! 🔍 INSTANT SCAN • One-click scan for all broken links on any webpage • Checks <a> links, images, scripts, stylesheets, and iframes • Real-time progress bar with live status updates 🎨 VISUAL HIGHLIGHTING • Color-coded highlights directly on the page: ✅ Green = Valid (200 OK) ⚠️ Yellow = Redirect (301, 302, 307) ❌ Red = Broken (404, 500, etc.) ⚫ Gray = Timeout / Unreachable • Hover tooltips showing status code & URL details 📊 DETAILED REPORTS • Dashboard with total, valid, broken, redirect & error counts • Filter results by status type • Sort by broken links first for quick fixes 📥 EXPORT OPTIONS • Export to CSV for spreadsheet analysis • Export to JSON for developer tools • Copy results to clipboard with one click ⚙️ CUSTOMIZABLE SETTINGS • Adjustable concurrency (1-20 parallel requests) • Configurable timeout (3-30 seconds) • Toggle which element types to check • Auto-highlight toggle • Show/hide valid links 🌐 MULTI-LANGUAGE SUPPORT Supports 12 languages: English, Vietnamese, Spanish, French, German, Japanese, Korean, Chinese, Portuguese, Russian, Italian, Thai ⚡ LIGHTWEIGHT & FAST • Minimal memory footprint • No background processes when not in use • Concurrent scanning for maximum speed 🔒 PRIVACY FIRST • No data collection • No tracking • No external servers - all checking done locally in your browser Perfect for: 👨‍💻 Web Developers - Find broken links before deployment 📈 SEO Professionals - Audit pages for link health ✍️ Content Editors - Ensure all references work 🏢 Website Owners - Maintain link quality Install now and start finding broken links in seconds! 🚀