# YAN SEO

> YAN SEO is a free Google Chrome extension for technical SEO audits and on-page analysis. It runs entirely in the browser's side panel — no account, no setup, no data collection.

## What it does

YAN SEO performs instant SEO audits on any webpage directly inside Chrome, covering 18+ on-page checks:

- **Title & Meta Description Analyzer** — Visual progress bars showing character counts vs. optimal limits (60 chars for title, 160 for description).
- **Heading Hierarchy Validator** — Interactive H1–H6 tree with jump-to-heading support and hierarchy error detection.
- **Bulk Link Checker** — Concurrent HTTP checks for every link on the page: valid (2xx), redirect (3xx), warning (slow), broken (4xx/5xx). CSV export included.
- **Content Links Analyzer** — Isolates content-area links (excludes nav/footer), shows internal/external split and HTTP status per link.
- **Image SEO Auditor** — Detects missing ALT text and title attributes on all images, with thumbnail previews and scroll-to-image support.
- **Social Preview (Open Graph)** — Renders OG image, title, and description as they appear on social platforms. Flags mismatches vs. meta tags.
- **Keyword Density Analyzer** — Real-time density stats with calibrated min/max recommendations based on actual page word count.
- **Technical SEO Checklist** — Automated pass/fail checks: HTTPS, single H1, noindex/nofollow/nosnippet detection, HTML lang, mobile viewport, UTF-8.
- **Schema.org Detector** — Detects all structured data types present on the page (JSON-LD, Microdata, RDFa).
- **Hreflang & Root Files** — Validates hreflang tags for international SEO and checks robots.txt, sitemap.xml, and llms.txt existence.
- **SEO Counter & Scratchpad** — Live word and character counter with real-time green/red validation against title (65 chars) and description (70–155 chars) limits.
- **Markdown Export for AI** — Converts any page to clean Markdown. Shows HTML vs. Markdown token count (typically 90%+ noise reduction). Downloads as .md file.
- **UI Design Extractor** — Detects all font families, text colors, and background colors. Click any swatch to copy the HEX code.
- **Top Keywords & Entities** — Tag cloud of most frequent content words (stopwords removed).
- **Content Quality Score** — Pillar content scoring based on word count, readability, and structural signals.
- **Reading Time Estimate** — Estimated reading time based on page word count.

## Key facts

- **Price:** 100% free, forever. No premium tier, no credit card, no account.
- **Platform:** Google Chrome and Chromium-based browsers (Edge, Brave, Opera).
- **Privacy:** All analysis is local. No data is collected, stored, or transmitted to any server.
- **Install:** Available on the Chrome Web Store — https://chromewebstore.google.com/detail/yan-seo/cifdjbpnpbgenojikciijmjehihajknj
- **Developer:** Yannys R. — creativeygf@gmail.com
- **Website:** https://yanseo.com

## Pages

- Homepage: https://yanseo.com/
- Privacy Policy: https://yanseo.com/privacy
- Terms of Service: https://yanseo.com/terms