YAN SEO

Name: YAN SEO
Rating: 5 (2 reviews)
Author: yannysgf

Advanced Technical SEO audit and on-page analysis tool.

As of June 2026, YAN SEO has 31 users and a 5.00/5 rating from 2 reviews in the Productivity category.

yannysgf Productivity

Chrome Web Store ↗.crx

Users+342.9%

Rating0%

5.00

2 reviews

Reviews+100.0%

Version

2.8

Manifest V3

90-day change · In the last 90 days this extension 1 version update.

History

10 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	7	5.00	1	2.7
Apr 11, 2026	8	5.00	1	2.7
Apr 21, 2026	9	5.00	1	2.8
Apr 28, 2026	8	5.00	1	2.8
May 5, 2026	11	5.00	1	2.8
May 11, 2026	13	5.00	1	2.8
May 16, 2026	19	5.00	1	2.8
May 29, 2026	29	5.00	2	2.8
Jun 5, 2026	31	5.00	2	2.8
Jun 12, 2026	33	5.00	2	2.8
Now	31	5.00	2	2.8

Changelog

Apr 11, 2026

description

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.

🔍 What YAN SEO Does:

YAN SEO gives you 21 specialized modules, all collapsible and reorderable by drag & drop so you can build your own workflow:

📄 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. Switch between 1-gram, 2-gram, and 3-gram analysis.

🎨 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, SSL, indexability, 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.

📊 Content & Readability:
Measures word count, reading time, Flesch Reading Ease score, average words per sentence, and paragraph count — the signals Google uses to evaluate content quality.

⚡ Core Web Vitals (Lab Data):
Measures LCP, INP, and CLS in real time using the browser's Performance API — with color-coded ratings (Good / Needs Work / Poor) per Google's official thresholds. Also shows FCP, TTFB, Total Blocking Time, the exact LCP element, layout shift sources, render-blocking resources, DOM size, and the 5 heaviest loaded resources.

🧠 AI Content Fingerprint:
Analyzes your text for patterns associated with AI-generated content: vocabulary diversity (TTR), sentence length variance, overused generic phrases, entity density, first-person usage, and data/number density. Returns a 0–100 human-to-AI score with a visual gauge and signal breakdown.

🔎 Competitor Gap Radar:
Paste any competitor URL and instantly compare 6 key SEO metrics side-by-side — content depth, heading structure, images, schema markup, internal links, and meta quality — visualized on an interactive SVG radar chart.

🗺️ Internal Link Architecture:
Analyzes all links on the page to map your site's internal structure: page crawl depth, internal vs. external link ratio, top anchor texts, links by site section, average link depth, and orphan page risk detection.

🎯 Page Intent Classifier:
Automatically detects the primary search intent of any page — Transactional, Commercial, Informational, or Navigational — by analyzing text patterns, DOM elements (cart buttons, forms, login), and URL structure. Shows confidence bars and the specific signals that triggered each classification.

📋 SERP Preview Simulator:
Simulates exactly how your page appears in Google search results on both Desktop and Mobile, with real character count warnings. Automatically generates rich snippet previews based on detected schemas — including FAQ accordions, Product price and star ratings, Article authorship, HowTo steps, Breadcrumb trails, and LocalBusiness data.

✅ 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 — 21 modules replacing a dozen separate tools
🖱️ Interactive — Click elements in the panel to navigate directly on the page
📤 Export-ready — Download links, content, and reports as CSV or Markdown
🔀 Customizable — Drag and drop modules to build your own SEO workflow
🆓 Free — No subscription, no account, no limits

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.

🔍 What YAN SEO Does:
-----------------------------------------
All 21 Modules in Detail:

1. Meta & Structure Analysis
Analyzes the Title Tag and Meta Description with:

Real-time character counters with visual progress bars
Defined optimal ranges: title 30–60 chars, description 120–160 chars
Status indicator: green (optimal), yellow (too short), red (too long/missing)
Detects when fields are completely absent from the HTML


2. SERP Preview Simulator
Simulates how the page will appear in Google search results:

Desktop and mobile toggle — each with different truncation limits (60/55 chars title, 160/120 chars description)
Google-style URL breadcrumbs (domain › category › subcategory)
Visual truncation warnings with exceeded character count
Simulated Rich Snippets based on detected schema:
FAQ: shows first 2 question/answer pairs
Product: price + star rating
Article/BlogPosting: author + publish date
HowTo: numbered steps with names
Breadcrumb: full navigation trail
LocalBusiness: address + phone + rating
Recipe: cook time + yield
Review/AggregateRating: stars with review count


3. Content Metrics
Full statistics about the page's main content area:

Word counter with intelligent main content detection (ignores navigation, sidebars, footers)
Estimated reading time (words ÷ 225 wpm)
Evaluation badge:
⚠️ Thin content (< 300 words)
✅ Acceptable (300–800 words)
🏆 Pillar content (> 800 words)
Extracts only visible text (excludes scripts, styles, iframes, CSS-hidden elements)


4. Readability Score
Measures text complexity using the Flesch-Kincaid algorithm:

Formula: 206.835 − 1.015 × (words/sentences) − 84.6 × (syllables/words)
0–100 scale: 0 = very difficult (academic), 100 = very easy (elementary)
Displays: score, equivalent school grade level, sentence count, average words per sentence, paragraph count
Color-coded: green (easy), yellow (medium), red (highly technical/difficult)


5. Keyword Density Analysis
When you enter a target keyword:

Counts exact occurrences (case-insensitive) in visible text
Calculates density: (occurrences / total words) × 100
Density status: green (< 0.5% = low), yellow (0.5–2.5% = optimal), red (> 2.5% = keyword stuffing)
Verifies presence in the title tag and in the H1
Click on the result → highlights and scrolls to the first occurrence on the page


6. Top Keywords / N-Grams
Automatic extraction of the most repeated words and phrases:

Analyzes 1-grams through 7-grams (single words up to 7-word phrases)
Removes stop words in English and Spanish (43+ words)
Shows Top 15 for each n-gram size with frequency count
Interface with n-gram selector and clickable keyword tags
Click on a phrase → searches and highlights it on the page in real time


7. Heading Hierarchy
Audits the H1–H6 heading structure:

Validates that there is exactly 1 H1 (more than 1 = error)
Detects level jumps (e.g., H1→H3 without an H2 in between = critical error)
Shows a visual indented tree of the full heading hierarchy
Each heading is clickable → scrolls to that element on the page
Count by level (H1: 1, H2: 5, H3: 8, etc.)
Red error indicators on problematic elements


8. Image Analysis
Complete audit of all images on the page:

Detects lazy-loaded images by checking multiple attributes: data-src, data-lazy-src, data-original, data-lazy, data-url, srcset
Excludes tracking pixels (images < 5px)
For each image shows: thumbnail, filename, alt and title status
Status badges: ✅ (has alt), ❌ (missing alt), ⚠️ (no title)
Filters by status: all / missing alt / missing title
Click on thumbnail → scrolls to that image on the page
"View Original" link to open image in a new tab


9. Link Checker
Concurrent link checker with a pool of 3 simultaneous workers:

Classifies each link as: ✅ Valid (200), ↪ Redirect (3xx), ⚠️ Slow (8s timeout), ❌ Broken (4xx/5xx), ⚠️ CORS blocked, ⚠️ Rate-limited (429)
Tries HEAD first, falls back to GET if it fails (405/403)
Real-time progress bar + counter
Filter by category (valid, redirects, warnings, invalid)
Export results as CSV or copy URLs to clipboard per category
Analyzes only content links (excludes navigation menus, wp-admin links)


10. Schema Markup Detection
Detection and visualization of structured data:

Parses all <script type="application/ld+json"> tags on the page
Recursively extracts types (including nested @graph structures)
Icons per type: 🛒 Product, 🔗 Breadcrumb, ❓ FAQ, 📰 Article, etc.
Expandable accordion with the full JSON of each schema
Complete list of all detected types
Integrated with SERP preview to simulate real rich snippets


11. Hreflang Tags
Audit of international SEO tags:

Detects all <link rel="alternate" hreflang="..."> tags in the head
Table showing language code + target URL
Validates correct language code format


12. Open Graph / Social Preview
Simulates how the page will look when shared on social networks:

Renders a preview card styled like Facebook/LinkedIn with the real og:image
Shows og:title, og:description, domain
Badges indicating whether OG values match or differ from the SEO meta tags


13. Core Web Vitals
Real performance metrics using the browser's Performance Observer API:

LCP (Largest Contentful Paint): which element took longest to render + description + size
INP (Interaction to Next Paint): user interaction response time (98th percentile)
CLS (Cumulative Layout Shift): visual stability score + layout shift sources
FCP (First Contentful Paint): first pixel rendered on screen
TTFB (Time to First Byte): server response time
TBT (Total Blocking Time): sum of long tasks (> 50ms) blocking the main thread
Count of render-blocking resources (synchronous JS/CSS)
List of the 5 heaviest resources with size in KB
DOM node count (> 1500 = warning)
Color-coded thresholds: 🟢 Good, 🟡 Needs Improvement, 🔴 Poor


14. AI Content Fingerprint
Detects signals of AI-generated content:

TTR (Type-Token Ratio): vocabulary diversity — AI tends to repeat words
Sentence length standard deviation: AI produces very uniform sentence lengths
30+ AI phrases detected: "it is worth noting", "moreover", "comprehensive guide", "delve into", "it is important to", etc.
Entity density: proper nouns, years, numeric values (AI generates fewer)
First-person usage: % of "I/we/my/our" (humans use more)
Data density: numbers, percentages, measurements (signal of human expertise)
Final scale 5–95 with labels: "Mostly Human" (≤25), "Natural" (≤45), "Neutral" (≤60), "AI Signals" (≤75), "AI-like" (>75)
Gauge visualization + list of detected problematic phrases


15. Competitor Gap Radar
Visual comparison against any competitor page:

Enter a competitor URL → the extension fetches it via the service worker (cross-origin)
Automatically extracts: title, description, word count, H1–H3 count, images, schemas, internal links, meta score
Generates an SVG radar chart with 6 axes: Content, Headings, Images, Schemas, Internal Links, Meta Score
Two overlaid polygons: you (blue) vs. competitor (red)
Axis-by-axis comparison grid with numeric values
Win/loss summary: "You win X out of 6 categories"
Smart normalization: content ÷ 2000, headings ÷ 20, images ÷ 15, schemas ÷ 5, links ÷ 50


16. Internal Link Architecture
Map of the internal linking structure:

Page depth: how many levels deep the current URL is (/blog/seo/tips = level 3)
Internal and external link totals with count of unique external domains
Top anchors: the 6 most used anchor texts with frequency
Path categories: most linked URL patterns (/blog, /products, etc.) with distribution bars
Deep links: links pointing to pages more than 2 levels deep
Orphan risk: alert if the current page is > 2 levels deep with fewer than 5 internal links pointing to it


17. Page Intent Classifier
Automatically classifies the page's search intent:

4 detected types: 🛒 Transactional (buy, download, subscribe), 🔍 Commercial (compare, best, reviews), ℹ️ Informational (how, what, guide, tutorial), 🧭 Navigational (home, login)
Scoring system based on text patterns, UI elements (CTA buttons, prices, forms), and keyword presence in the title
Shows primary intent with percentage and secondary intent if it exceeds 10%
Percentage bars for all 4 intents
Detected trigger tags (e.g., "buy now in title", "visible price", "how-to question")


18. SEO Counter / Text Optimizer
Built-in SEO writing tool:

Text field with live character and word counter
Validation for title (≤ 65 chars = ✅ green, > 65 = ❌ red) and description (70–155 chars = ✅)
Text case conversion buttons: UPPERCASE, Title Case, lowercase
Useful for drafting and optimizing titles and descriptions before publishing


19. Markdown Export
Converts the page content to clean Markdown:

Recursive DOM traversal: h1–h6 → #, bold → **, italic → *, links → [text](url), images → ![alt](src)
Strips: scripts, styles, nav, footer, aside
Auto-generates frontmatter (title, description, URL, og:image)
Shows compression metrics: original HTML size vs. Markdown size, noise reduction %, context multiplier for AI usage
Buttons to copy to clipboard or download as .md file
Ideal for feeding AI models (ChatGPT, Claude) with clean page content


20. Root Files Checker
Verifies essential technical files at the domain root:

Sitemap XML: intelligent multi-path search (/sitemap.xml, /sitemap_index.xml, /wp-sitemap.xml) and also parses robots.txt looking for Sitemap: directives
robots.txt: verifies existence and accessibility
llms.txt: checks presence of the new standard for AI crawlers
Uses HEAD→GET fallback with 7-second timeout, treats 429 as "found"


21. Technical SEO Checklist
8-point technical checklist with pass/fail indicators:

H1: exactly 1 present on the page
SSL: HTTPS protocol active
Indexability: absence of noindex in meta robots
Language: lang attribute defined in <html>
Mobile Viewport: width=device-width in meta viewport
Charset: UTF-8 encoding declared
Nofollow: detection of global nofollow in meta robots
Nosnippet: detection of nosnippet in meta robots


Cross-Cutting Features:
------------------
Feature	Detail:

SEO Score (0–100)	11-factor weighted algorithm: title (15pts), description (15pts), URL (8pts), H1 (10pts), content volume (10pts), image alt text (8pts), technical checks (12pts), canonical (5pts), schema (7pts), internal links (5pts), readability (5pts)
Context Banner	Top bar showing page H1, HTTPS status, indexability, language, and canonical — always visible
Drag & Drop	All modules are reorderable by dragging, order saved to localStorage
Interactive Scroll	Click headings, links, or images → auto-scroll to that element on the page with visual highlight
Auto-analysis	Launches automatically on tab change or URL change
No external data	All analysis runs 100% in the browser — no data leaves your machine

Permissions & access

Permissions: sidePanelactiveTabscriptingtabs
Host access: <all_urls>

Screenshots

About

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.

🔍 What YAN SEO Does:
-----------------------------------------
All 21 Modules in Detail:

1. Meta & Structure Analysis
Analyzes the Title Tag and Meta Description with:

Real-time character counters with visual progress bars
Defined optimal ranges: title 30–60 chars, description 120–160 chars
Status indicator: green (optimal), yellow (too short), red (too long/missing)
Detects when fields are completely absent from the HTML


2. SERP Preview Simulator
Simulates how the page will appear in Google search results:

Desktop and mobile toggle — each with different truncation limits (60/55 chars title, 160/120 chars description)
Google-style URL breadcrumbs (domain › category › subcategory)
Visual truncation warnings with exceeded character count
Simulated Rich Snippets based on detected schema:
FAQ: shows first 2 question/answer pairs
Product: price + star rating
Article/BlogPosting: author + publish date
HowTo: numbered steps with names
Breadcrumb: full navigation trail
LocalBusiness: address + phone + rating
Recipe: cook time + yield
Review/AggregateRating: stars with review count


3. Content Metrics
Full statistics about the page's main content area:

Word counter with intelligent main content detection (ignores navigation, sidebars, footers)
Estimated reading time (words ÷ 225 wpm)
Evaluation badge:
⚠️ Thin content (< 300 words)
✅ Acceptable (300–800 words)
🏆 Pillar content (> 800 words)
Extracts only visible text (excludes scripts, styles, iframes, CSS-hidden elements)


4. Readability Score
Measures text complexity using the Flesch-Kincaid algorithm:

Formula: 206.835 − 1.015 × (words/sentences) − 84.6 × (syllables/words)
0–100 scale: 0 = very difficult (academic), 100 = very easy (elementary)
Displays: score, equivalent school grade level, sentence count, average words per sentence, paragraph count
Color-coded: green (easy), yellow (medium), red (highly technical/difficult)


5. Keyword Density Analysis
When you enter a target keyword:

Counts exact occurrences (case-insensitive) in visible text
Calculates density: (occurrences / total words) × 100
Density status: green (< 0.5% = low), yellow (0.5–2.5% = optimal), red (> 2.5% = keyword stuffing)
Verifies presence in the title tag and in the H1
Click on the result → highlights and scrolls to the first occurrence on the page


6. Top Keywords / N-Grams
Automatic extraction of the most repeated words and phrases:

Analyzes 1-grams through 7-grams (single words up to 7-word phrases)
Removes stop words in English and Spanish (43+ words)
Shows Top 15 for each n-gram size with frequency count
Interface with n-gram selector and clickable keyword tags
Click on a phrase → searches and highlights it on the page in real time


7. Heading Hierarchy
Audits the H1–H6 heading structure:

Validates that there is exactly 1 H1 (more than 1 = error)
Detects level jumps (e.g., H1→H3 without an H2 in between = critical error)
Shows a visual indented tree of the full heading hierarchy
Each heading is clickable → scrolls to that element on the page
Count by level (H1: 1, H2: 5, H3: 8, etc.)
Red error indicators on problematic elements


8. Image Analysis
Complete audit of all images on the page:

Detects lazy-loaded images by checking multiple attributes: data-src, data-lazy-src, data-original, data-lazy, data-url, srcset
Excludes tracking pixels (images < 5px)
For each image shows: thumbnail, filename, alt and title status
Status badges: ✅ (has alt), ❌ (missing alt), ⚠️ (no title)
Filters by status: all / missing alt / missing title
Click on thumbnail → scrolls to that image on the page
"View Original" link to open image in a new tab


9. Link Checker
Concurrent link checker with a pool of 3 simultaneous workers:

Classifies each link as: ✅ Valid (200), ↪ Redirect (3xx), ⚠️ Slow (8s timeout), ❌ Broken (4xx/5xx), ⚠️ CORS blocked, ⚠️ Rate-limited (429)
Tries HEAD first, falls back to GET if it fails (405/403)
Real-time progress bar + counter
Filter by category (valid, redirects, warnings, invalid)
Export results as CSV or copy URLs to clipboard per category
Analyzes only content links (excludes navigation menus, wp-admin links)


10. Schema Markup Detection
Detection and visualization of structured data:

Parses all <script type="application/ld+json"> tags on the page
Recursively extracts types (including nested @graph structures)
Icons per type: 🛒 Product, 🔗 Breadcrumb, ❓ FAQ, 📰 Article, etc.
Expandable accordion with the full JSON of each schema
Complete list of all detected types
Integrated with SERP preview to simulate real rich snippets


11. Hreflang Tags
Audit of international SEO tags:

Detects all <link rel="alternate" hreflang="..."> tags in the head
Table showing language code + target URL
Validates correct language code format


12. Open Graph / Social Preview
Simulates how the page will look when shared on social networks:

Renders a preview card styled like Facebook/LinkedIn with the real og:image
Shows og:title, og:description, domain
Badges indicating whether OG values match or differ from the SEO meta tags


13. Core Web Vitals
Real performance metrics using the browser's Performance Observer API:

LCP (Largest Contentful Paint): which element took longest to render + description + size
INP (Interaction to Next Paint): user interaction response time (98th percentile)
CLS (Cumulative Layout Shift): visual stability score + layout shift sources
FCP (First Contentful Paint): first pixel rendered on screen
TTFB (Time to First Byte): server response time
TBT (Total Blocking Time): sum of long tasks (> 50ms) blocking the main thread
Count of render-blocking resources (synchronous JS/CSS)
List of the 5 heaviest resources with size in KB
DOM node count (> 1500 = warning)
Color-coded thresholds: 🟢 Good, 🟡 Needs Improvement, 🔴 Poor


14. AI Content Fingerprint
Detects signals of AI-generated content:

TTR (Type-Token Ratio): vocabulary diversity — AI tends to repeat words
Sentence length standard deviation: AI produces very uniform sentence lengths
30+ AI phrases detected: "it is worth noting", "moreover", "comprehensive guide", "delve into", "it is important to", etc.
Entity density: proper nouns, years, numeric values (AI generates fewer)
First-person usage: % of "I/we/my/our" (humans use more)
Data density: numbers, percentages, measurements (signal of human expertise)
Final scale 5–95 with labels: "Mostly Human" (≤25), "Natural" (≤45), "Neutral" (≤60), "AI Signals" (≤75), "AI-like" (>75)
Gauge visualization + list of detected problematic phrases


15. Competitor Gap Radar
Visual comparison against any competitor page:

Enter a competitor URL → the extension fetches it via the service worker (cross-origin)
Automatically extracts: title, description, word count, H1–H3 count, images, schemas, internal links, meta score
Generates an SVG radar chart with 6 axes: Content, Headings, Images, Schemas, Internal Links, Meta Score
Two overlaid polygons: you (blue) vs. competitor (red)
Axis-by-axis comparison grid with numeric values
Win/loss summary: "You win X out of 6 categories"
Smart normalization: content ÷ 2000, headings ÷ 20, images ÷ 15, schemas ÷ 5, links ÷ 50


16. Internal Link Architecture
Map of the internal linking structure:

Page depth: how many levels deep the current URL is (/blog/seo/tips = level 3)
Internal and external link totals with count of unique external domains
Top anchors: the 6 most used anchor texts with frequency
Path categories: most linked URL patterns (/blog, /products, etc.) with distribution bars
Deep links: links pointing to pages more than 2 levels deep
Orphan risk: alert if the current page is > 2 levels deep with fewer than 5 internal links pointing to it


17. Page Intent Classifier
Automatically classifies the page's search intent:

4 detected types: 🛒 Transactional (buy, download, subscribe), 🔍 Commercial (compare, best, reviews), ℹ️ Informational (how, what, guide, tutorial), 🧭 Navigational (home, login)
Scoring system based on text patterns, UI elements (CTA buttons, prices, forms), and keyword presence in the title
Shows primary intent with percentage and secondary intent if it exceeds 10%
Percentage bars for all 4 intents
Detected trigger tags (e.g., "buy now in title", "visible price", "how-to question")


18. SEO Counter / Text Optimizer
Built-in SEO writing tool:

Text field with live character and word counter
Validation for title (≤ 65 chars = ✅ green, > 65 = ❌ red) and description (70–155 chars = ✅)
Text case conversion buttons: UPPERCASE, Title Case, lowercase
Useful for drafting and optimizing titles and descriptions before publishing


19. Markdown Export
Converts the page content to clean Markdown:

Recursive DOM traversal: h1–h6 → #, bold → **, italic → *, links → [text](url), images → ![alt](src)
Strips: scripts, styles, nav, footer, aside
Auto-generates frontmatter (title, description, URL, og:image)
Shows compression metrics: original HTML size vs. Markdown size, noise reduction %, context multiplier for AI usage
Buttons to copy to clipboard or download as .md file
Ideal for feeding AI models (ChatGPT, Claude) with clean page content


20. Root Files Checker
Verifies essential technical files at the domain root:

Sitemap XML: intelligent multi-path search (/sitemap.xml, /sitemap_index.xml, /wp-sitemap.xml) and also parses robots.txt looking for Sitemap: directives
robots.txt: verifies existence and accessibility
llms.txt: checks presence of the new standard for AI crawlers
Uses HEAD→GET fallback with 7-second timeout, treats 429 as "found"


21. Technical SEO Checklist
8-point technical checklist with pass/fail indicators:

H1: exactly 1 present on the page
SSL: HTTPS protocol active
Indexability: absence of noindex in meta robots
Language: lang attribute defined in <html>
Mobile Viewport: width=device-width in meta viewport
Charset: UTF-8 encoding declared
Nofollow: detection of global nofollow in meta robots
Nosnippet: detection of nosnippet in meta robots


Cross-Cutting Features:
------------------
Feature	Detail:

SEO Score (0–100)	11-factor weighted algorithm: title (15pts), description (15pts), URL (8pts), H1 (10pts), content volume (10pts), image alt text (8pts), technical checks (12pts), canonical (5pts), schema (7pts), internal links (5pts), readability (5pts)
Context Banner	Top bar showing page H1, HTTPS status, indexability, language, and canonical — always visible
Drag & Drop	All modules are reorderable by dragging, order saved to localStorage
Interactive Scroll	Click headings, links, or images → auto-scroll to that element on the page with visual highlight
Auto-analysis	Launches automatically on tab change or URL change
No external data	All analysis runs 100% in the browser — no data leaves your machine