The Ultimate SEO DevTool

SEO EXPERT:
ALL-IN-ONE
META, TECH & PDF AUDITOR

The most complete SEO workspace for Chrome. Audit JSON-LD Schema, Core Web Vitals (LCP/CLS), HSTS Security, and React/Next.js Hydration in one view.Local. Instant. Deep.

Works on Localhost
Instant Analysis
NEXT.JS
REACT
TAILWIND
ASTRO
VUE
NUXT
SVELTE
ANGULAR
WORDPRESS
SHOPIFY
MAGENTO
SALESFORCE
LARAVEL
VERCEL
AWS
STRIPE
NEXT.JS
REACT
TAILWIND
ASTRO
VUE
NUXT
SVELTE
ANGULAR
WORDPRESS
SHOPIFY
MAGENTO
SALESFORCE
LARAVEL
VERCEL
AWS
STRIPE
NEXT.JS
REACT
TAILWIND
ASTRO
VUE
NUXT
SVELTE
ANGULAR
WORDPRESS
SHOPIFY
MAGENTO
SALESFORCE
LARAVEL
VERCEL
AWS
STRIPE
CORE WEB VITALS
LCP / CLS / INP
HSTS SECURITY
JSON-LD SCHEMA
CANONICAL TAGS
OPEN GRAPH
TWITTER CARDS
ROBOTS.TXT
SITEMAP.XML
H1-H6 HIERARCHY
BROKEN LINKS
ALT TEXT AUDIT
MIXED CONTENT
TTFB
CSP HEADERS
HTMX
ALPINE.JS
TAILWIND
CORE WEB VITALS
LCP / CLS / INP
HSTS SECURITY
JSON-LD SCHEMA
CANONICAL TAGS
OPEN GRAPH
TWITTER CARDS
ROBOTS.TXT
SITEMAP.XML
H1-H6 HIERARCHY
BROKEN LINKS
ALT TEXT AUDIT
MIXED CONTENT
TTFB
CSP HEADERS
HTMX
ALPINE.JS
TAILWIND
CORE WEB VITALS
LCP / CLS / INP
HSTS SECURITY
JSON-LD SCHEMA
CANONICAL TAGS
OPEN GRAPH
TWITTER CARDS
ROBOTS.TXT
SITEMAP.XML
H1-H6 HIERARCHY
BROKEN LINKS
ALT TEXT AUDIT
MIXED CONTENT
TTFB
CSP HEADERS
HTMX
ALPINE.JS
TAILWIND

COMPLETE ARSENAL

Everything you need to rank.

DEEP CRAWL ENGINE

SANDBOX ENVIRONMENT

Zero data exfiltration. Analysis runs 100% client-side in your browser's memory.

LOCAL RUNTIMEActive
0 BYTES SENT
EXTERNAL API
Blocked

REAL USER METRICS

Live Web Vitals (LCP, CLS, INP).

LCP
0.00GOOD
CLS
0.00GOOD
FID
0GOOD

Full Stack Detection

Identify CMS (Shopify, WP 6.x), Frameworks (Next.js, Astro), and Analytics tags instantly.

TECHNICAL SPECIFICATIONS

Full capabilities breakdown

ON-PAGE SEO

  • Title & Description Length
  • Canonical Tag Verification
  • Robots Meta Directives
  • H1-H6 Heading Hierarchy
  • Image Alt Text Audit
  • Robots.txt Detection
  • Sitemap.xml Links
  • Viewport Configuration
  • Charset Encoding

VISUAL TOOLS

  • H1-H6 Topology Overlay
  • Link Type Visualization
  • Broken Link Highlighter
  • Image Alt Status Overlay
  • NoFollow/Sponsored Badges
  • Layout Shift (CLS) Zones

SOCIAL PREVIEWS

  • Open Graph Title/Desc/Img
  • Twitter Card Validation
  • Social Image Dimension Check
  • URL Consistency Check
  • Facebook App ID Detection
  • LinkedIn Post Preview

TECHNICAL STACK

  • CMS Detection (WP/Shopify/Wix)
  • JS Frameworks (React/Vue/Angular)
  • Server Tech (Nginx/Apache)
  • Analytics Tags (GA4/GTM)
  • Advertising Pixels
  • Font Libraries (Google/Adobe)

PERFORMANCE (RUM)

  • LCP (Largest Contentful Paint)
  • CLS (Layout Shift)
  • INP (Interaction to Next Paint)
  • TTFB (Time to First Byte)
  • DOM Node Count
  • Total Page Weight (MB)

SECURITY & HEADERS

  • HTTP Status Codes (200/301/404)
  • HSTS (Strict-Transport-Security)
  • X-Content-Type-Options
  • Content-Security-Policy (CSP)
  • X-Frame-Options
  • SSL/TLS Certificate Validity

AI & STRUCTURE

  • JSON-LD Schema Validation
  • llms.txt Detection
  • Breadcrumb Structure
  • Internal vs External Links
  • Nofollow/Dofollow Classification
  • Anchor Text Analysis
01

ON-PAGE ARCHITECTURE

The Mathematical Structure of Verified Rankings

Success in search begins with clean, semantic architecture. SEO Expert audits the invisible skeleton of your page.

Canonicalization Logic

Duplicate content is the silent killer of rankings. We strictly verify `<link rel='canonical'>` to ensure it matches the current URL, protecting your link equity from being diluted across query parameters or protocol variations.

Meta Tag Precision

Google rewrites 60% of titles, but control matters. We audit Title (50-60 chars) and Description (150-160 chars) for pixel-perfect display in SERPs. We also detect `robots` meta directives to prevent accidental de-indexing.

Heading Hierarchy (H1-H6)

Screen readers and crawlers read your headers to understand context. We visualize your H1-H6 structure as a nested tree, instantly highlighting missing H1s, duplicate H1s, or illogical jumps (H2 to H4) that confuse search algorithms.

Image Alt Text & Accessibility

Alt text is a ranking vector for Google Images. We scan every `<img>` tag to ensure descriptive text exists, flagging generic filenames and empty attributes that miss valuable keyword opportunities.

02

VISUAL DEBUGGER

X-Ray Vision for your DOM

Stop guessing. See exactly how crawlers interpret your code with our real-time visual overlays.

Focus Mode (Heading Map)

Instantly visualize the skeleton of your content. We overlay high-contrast badges (H1-H6) directly on your page elements, making broken hierarchies and empty headers impossible to miss.

Link Radar

A heads-up display for your link juice. We color-code every link in the viewport: Green for internal, Orange for external, and Red for nofollow/sponsored. Spot broken internal linking strategies in seconds.

Image & Media Audit

Debug CLS and Accessibility visually. We highlight images lacking dimensions (causing layout shifts) and red-box any image missing 'alt' text. Perfect for quick QA before publishing content.

03

TECH STACK & SECURITY

Know What Powers the Web

SEO is no longer just HTML. It's React, Next.js, and server config. We strip the paint capability to see the engine.

Deep Stack Detection

We go beyond 'WordPress'. We detect Next.js 14, Astro 5.0, Shopify Liquid, and WordPress 6.x. Knowing the stack helps diagnose specific technical SEO pitfalls.

Security Header Analysis

Security affects trust. We validate essential headers like HSTS, CSP (Content-Security-Policy), X-Frame-Options, and Permissions-Policy to ensure your site is secure and trustworthy.

AI-Ready (llms.txt)

Prepare for the future of search. We validate llms.txt, robots.txt, and AIUserAgent directives, giving you control over how Large Language Models consume specific content.

04

PERFORMANCE (RUM)

Google's Measuring Stick for UX

Passing Core Web Vitals is mandatory. We provide real-time, field-data equivalent metrics using the PerformanceObserver API.

LCP & INP

Measures loading speed and interactivity. We track Largest Contentful Paint and the new Interaction to Next Paint metric, helping you identify exactly which scripts or elements are lagging your UI.

CLS (Layout Shift)

Visual stability matters. We track layout shifts in real-time, identifying exactly which DOM elements (ads, images without dimensions) are causing the page to jump so you can fix them.

TTFB & DOM Weight

Bloat slows down mobile crawling. We measure Time to First Byte and count DOM Nodes. We flag uncompressed images and heavy hydration states that consume user data and crawl budget.

Verified Engine // Optimization Schema

THE GOOGLE RANKING BLUEPRINT

4 Pillars of Verified Position #1

Ref: 001

Technical Excellence

Status: CORE
  • Core Web Vitals (LCP/INP)
  • HSTS & Security Headers
  • HTTPS/SSL Validation
  • Server Response (TTFB)
Ref: 002

Content Architecture

Status: SEMANTIC
  • H1-H6 Topology Map
  • Meta Tag Pixel Precision
  • Keyword Density Audit
  • JSON-LD Schema Check
Ref: 003

Visual Accessibility

Status: USER-CENTRIC
  • Alt-Text Coverage Scan
  • Layout Shift (CLS) Zones
  • Color Contrast Check
  • Tap Target Sizing
Ref: 004

Discovery Engine

Status: BOT-READY
  • Sitemap & Robots Validation
  • llms.txt AI Detection
  • Broken Link Async Scan
  • Canonical URL Logic
SCALE: 1:1 SEO PRECISION
UNIT: PIXEL-PERFECT AUDIT
REV: 2026.02.13
AUTH: ALDEA CODE
ENGINEERED FOR GOOGLE SEARCH CONSOLE SUPREMACY

FREQUENT
QUESTIONS

NEED SUPPORT?

Check our documentation or contact us.

CONTACT