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Description
Broken link checker & SEO link audit tool. Highlight dofollow/nofollow, internal/external links live on any webpage. By Digitum. Seotum is a professional SEO link analysis tool built by Digitum. It works directly on any webpage — highlighting, classifying, and checking every link without leaving the page. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔴 BROKEN LINK DETECTION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Seotum scans every link on the active page and checks its HTTP status in the background. Broken links are highlighted instantly on the page with a red outline so you can see exactly where they are. Detects: - 404 Not Found - 410 Gone - 500 Internal Server Error - 5xx Server Errors - Timeout / Unreachable URLs - Network failures ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🟢 INTERNAL & EXTERNAL LINK CLASSIFICATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Every link is automatically classified as internal or external based on the domain. Subdomain handling is configurable — you can treat subdomains as internal or external depending on your site structure. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔵 DOFOLLOW & NOFOLLOW ANALYSIS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Seotum reads the rel attribute of every anchor tag and classifies links into: - Internal Dofollow - Internal Nofollow - External Dofollow - External Nofollow Sponsored and UGC rel attributes are also detected and labelled. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎨 ON-PAGE VISUAL HIGHLIGHTING ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Links are highlighted directly on the live webpage — not in a separate report. Each category gets its own colour outline and a small badge label. You can: - Enable or disable each category individually - Set a custom highlight colour for every category - Toggle inline badges on or off - Clear all highlights from the page instantly Highlights use CSS outlines so they never break the page layout. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📊 LINK RESULTS PANEL ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Every detected link is listed in a structured results panel showing: - Anchor text - Full destination URL - Internal or External - Dofollow or Nofollow - HTTP status code - Broken / Working / Checking status - Duplicate URL detection - Sponsored / UGC flags - Jump-to button — scroll directly to that link on the page ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔢 SUMMARY COUNTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ At a glance, see: - Total links found - Broken links count - Internal links count - External links count - Nofollow links count - Duplicate URLs count ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔍 FILTERING & SEARCH ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Filter results by category: - All Links - Broken only - Internal / External - Dofollow / Nofollow - Internal Dofollow / Internal Nofollow - External Dofollow / External Nofollow - Duplicates Search links by URL or anchor text in real time. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📥 CSV EXPORT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Export your full link audit as a CSV file including anchor text, URL, type, follow status, HTTP status code, broken flag, and duplicate flag. Ready to drop into Excel or Google Sheets. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ SETTINGS & PERSISTENCE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ - Colour preferences saved across sessions - Scan results cached per tab — reopen the popup without rescanning - Subdomain classification toggle - Badge visibility toggle ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ PERFORMANCE & RELIABILITY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ - Built on Manifest V3 (the modern Chrome extension standard) - Status checks run in the background service worker — the page stays fully responsive - Links are checked in parallel batches with progress shown live - HEAD request first, GET fallback — handles servers that block HEAD - 12-second timeout per link with clear error labelling - Skips mailto:, tel:, javascript:, and same-page hash links automatically - Duplicate injection prevention ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 PRIVACY ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Seotum does not collect, store, or transmit any personal data. All processing happens locally in your browser. Colour settings are saved in Chrome's sync storage (your own Google account). No analytics, no tracking, no external servers. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BUILT BY DIGITUM ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Seotum is developed and maintained by Digitum — a performance marketing agency specialising in Google Ads, SEO, and marketing automation. Website: https://digitum.marketing