Yan Seo

YAN SEO — Advanced Technical SEO Audit Tool for Chrome

STOP guessing. START ranking.

YAN SEO is a powerful Chrome extension that performs a full on-page and technical SEO audit of any website — instantly, right from your browser's side panel. No external tools, no subscriptions, no data sent anywhere. Just open a page, click the icon, and get a complete professional-grade analysis in seconds.

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🔍 What YAN SEO Does:

📄 Meta & Structure Analysis:
Instantly checks your Title Tag and Meta Description with real-time character counters and visual progress bars, flagging anything too short, too long, or missing.

🔗 Permalink Optimizer:
Analyzes your current URL slug, rates its SEO-friendliness, and suggests a cleaner, optimized version — all based on best practices.

📊 Keyword Density Analyzer:
Enter any target keyword and instantly get its density percentage, occurrence count, and prominence score on the page to ensure you're hitting the right optimization balance.

🔗 Content Link Auditor:
Breaks down every link on the page into Total, Internal, and External — with percentages. Click any link in the panel to auto-scroll and highlight it directly on the page.

🔎 Link Checker (Batch):
Batch-validates all links on the page, categorizing them as Valid, Redirected, Warning, or Broken. Export results to CSV or copy URLs in one click.

⚙️ Heading Hierarchy & Canonical:
Visualizes your full H1–H6 heading tree, counts each level, detects structural issues, and verifies your canonical URL. Click any heading to jump to it on the live page.

🌍 International SEO & Schema:
Detects all hreflang tags for multilingual/international targeting and identifies every Schema.org structured data type present on the page.

🖼️ Image SEO Audit:
Lists all images with thumbnails and flags any missing ALT text or Title attributes — critical for accessibility and image search rankings. Click any image to scroll to it.

📱 Social Preview (Open Graph):
Renders a live social card preview showing how your page will appear when shared on Facebook, LinkedIn, or other platforms, using your actual OG tags.

🧠 Top Keywords & Entities:
Extracts the most frequent meaningful words from your content (stopwords filtered out), displayed as a clickable cloud. Click a keyword to find and highlight it on the page.

🎨 Design & Typography Extractor:
Pulls the fonts, text colors, and background colors used on the page — with one-click HEX copy for colors. Perfect for competitive research and design audits.

📝 SEO Text Counter:
A built-in scratchpad to write, count, and validate your SEO titles and descriptions before publishing. Supports uppercase, title case, and lowercase transformations.

📑 Markdown Export:
Converts the main page content to clean Markdown in one click. See the estimated AI token reduction vs. raw HTML — ideal for feeding pages into LLMs efficiently.

🚀 Technical SEO Checklist:
Automated pass/fail checks for all critical technical SEO parameters — viewport meta, robots directives, canonical validity, H1 presence, and more.

📂 Root File Checker:
Verifies the existence of robots.txt and sitemap.xml directly from the page's domain — no manual URL typing needed.

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✅ Why Choose YAN SEO?

⚡ Instant — Audits any page in real time, no page reload required
🔒 Private — 100% local analysis, zero data sent to external servers
🧰 All-in-one — Replaces a dozen separate tools in one clean panel
🖱️ Interactive — Click elements in the panel to navigate directly on the page
💾 Export-ready — Download links, content, and reports as CSV or Markdown