Free Chrome Extension - v2.1.1

Analyze Any Page. Rank Every Time.

SEO Layers puts a full SEO audit panel right inside your browser. Meta tags, headings, links, Core Web Vitals, social previews & more - instantly surfaced for any page you visit.

Install Extension - FreeSee Features
Trusted by 1,000+ SEO professionals
1000+
Active Users
50+
SEO Signals Tracked
1.6
Extension Version
100%
Client-Side Private
Next-Gen UX

Meet the Browser Island

SEO insights shouldn't feel like a heavy sidebar. Our floating island adapts to your workflow, providing power when you need it and disappearing when you don't.

example.com/audit
SEO77
241.04s

Explore the Toolbelt

A comprehensive suite of powerful features designed to give you an unfair advantage in the SERPs.

Free

Technical Infrastructure Audit

Dive deep into the skeleton of your site. Our automated tools explore robots.txt, sitemaps, and server-side headers to ensure zero crawlability friction.

  • Robots.txt real-time explorer
  • Sitemap hierarchy discovery
  • SSL & infrastructure health tracking
seolayers.com
Technical Health
85%
Technical Infrastructure Score
Warning: Technical Debt
ROBOTS.TXT EXPLORER
SITEMAP DISCOVERY
Free

Advanced Image Analysis

Images are often the biggest performance bottleneck. Instantly find missing alt text, unoptimized formats, and identify lazy-loading gaps.

  • Alt text audit & reporting
  • Format distribution analysis
  • Lazy-loading verification
seolayers.com/products
Images
TOTAL IMAGES
30
MISSING ALT
22
ICONS / SVG
8
LAZY LOADED
22
Format Distribution
WEBP 18
PNG 6
AVIF 4
SVG 2
All Images
DECORATIVE
DECORATIVE
Free

Link Connectivity Audit

Broken links kill conversions and SEO. Audit every internal and external link on your page to find 404s, redirect loops, and missing trailing slashes.

  • Internal vs External mapping
  • Real-time 404 & 500 detection
  • No-follow attribute verification
seolayers.com
Links
26
INTERNAL
0
EXTERNAL
0
NOFOLLOW
26
TOTAL
Search links or anchor text...
All
Internal
External
Nofollow
SEO Layers
INTERNAL
http://localhost:3000/
Free

Sticky Notes & Tasks

Keep your SEO strategy where it belongs — on the page. Use the integrated yellow sticky notes and task manager to coordinate fixes without switching tabs.

  • Domain-specific task tracking
  • Formatting-rich sticky notes
  • One-click 'Add Note' workflow
seolayers.com
Notes
Tasks
Sketchbook
All
All
Today
Upcoming
Launch QR Product Soon
+
No Category
• Medium
○
Add a new task...
Free

Visual Sketchbook

Sometimes a list isn't enough. Draw, highlight, and visually annotate directly on the page mockup to explain complex SEO issues to your team.

  • Direct on-page drawing tools
  • Color-coded annotations
  • Save sketches per URL
seolayers.com
Notes
Tasks
Sketchbook
B I U |
Write your note...
03/03/2026
#3AE25C
+ Add Note
Free

Technology Stack Detector

Instantly reverse-engineer any website. Detect JS frameworks, CMS platforms, analytics providers, and CDNs being used in the background.

  • Auto-detection on page load
  • Identifies dozens of framework variants
  • One-click tech exploration
seolayers.com
Overview
JS Frameworks
Next.js
Detected
UI Frameworks
Tailwind CSS, shadcn/ui
Detected
Analytics
Google Analytics, Clarity
Detected
CDN
jsDelivr, CloudFront
Detected
Premium

Rich Snippet Schema Builder

Craft perfect JSON-LD structured data in seconds. Boost CTR with stars, FAQs, recipes, and more — without writing a single line of code.

  • 15+ Pre-built schema templates
  • Live JSON-LD generation
  • One-click copy & save
seolayers.com/pasta
Schema Builder
{ "@context": "https://schema.org", "@type": "Recipe", "name": "Spaghetti..." }
Premium

Cookie & Privacy Inspector

Ensure GDPR & CCPA compliance. Map out every cookie set by the page, identify third-party trackers, and review HttpOnly/Secure flags easily.

  • Full cookie domain mapping
  • Flag security gap analysis
  • Export to compliance reports
seolayers.com/checkout
Cookies
19COOKIES
Essential 4
Analytics 3
Marketing 5
Personalization 7
3rd Party 15
localhost
__next_hmr_refresh_hash__
localhost/ • Session
136
PERSONALIZATION
SameSite: unspecified
Free

Performance & Page Speed

Page speed is a critical ranking factor. Monitor your Core Web Vitals in real-time and get actionable advice on how to shave seconds off your load time.

  • LCP, FID, and CLS monitoring
  • JS & CSS opportunity audit
  • Real-time performance scoring
seolayers.com
Performance
CORE METRICES
LCP
0.48s
Good
CLS
0.001
Stable
INP
624ms
Laggy
TTFB
282ms
Fast Server
FULL LOAD
1.1s
Page Load
DNS
0ms
Lookup
Free

Accessibility Audit

Ensure your website is usable by everyone. Our automated accessibility scans catch ARIA violations, contrast issues, and missing labels instantly.

  • ARIA & role verification
  • Contrast ratio analysis
  • Screen reader compatibility checks
seolayers.com
Accessibility

Accessibility Audit

74
A11Y
CRITICAL
79
WARNINGS
1
NOTICES
0
Top Issues Affecting Score
Color Contrast: 72 Issues
CRITICAL
Images must have alt attributes
CRITICAL
Form elements must have labels
CRITICAL
For Marketers

Tracking (UTM Builder)

Built-in UTM builder for digital marketers. Generate tracking URLs for Google Analytics, Meta Ads, and more with AI assistance or manual control.

  • Instant UTM generation
  • AI-powered parameter suggestions
  • One-click copy tracking links
seolayers.com
Tracking Builder

Campaign URL Builder

Generate tracking URLs for Google Analytics, Meta Ads, and more.

Website URL
Current Page
Custom URL
http://localhost:3000/#features
Campaign Details
Campaign Source *
google, newsletter
Campaign Medium *
cpc, email
Free

Analytics & Tag Auditor

Verify your tracking implementation instantly. Detect Google Analytics (GA4/UA), Facebook Pixel, and Tag Managers to ensure no data loss occurs.

  • GA4 & GTM auto-discovery
  • Script source validation
  • Privacy-first ID masking
seolayers.com
Tag Detector
5TAGS DETECTED
Analytics 5
Analytics & Tag Managers
Google Analytics 4
G-
SCRIPT TAG
Google Analytics 4
G-
SCRIPT TAG
Everything you need

A full SEO toolkit, right in your browser

Stop switching between 10 different tools. SEO Layers surfaces every signal that impacts your rankings - in one unified side panel.

CORE

Meta Tag Analyzer

Instantly extract and validate title tags, meta descriptions, OG tags, Twitter Cards, and canonical URLs - with character-count warnings.

CORE

Heading Structure

Visualise your H1-H6 hierarchy in a tree view. Spot missing headings, duplicate H1s, and structural issues that hurt rankings.

CORE

Link Audit

Map every internal, external, nofollow, and broken link with anchor text and HTTP status. Export all as CSV in one click.

CORE

Image SEO

Detect every image missing alt text. Preview dimensions, file size, and lazy-load status at a glance - before they cost you rankings.

CORE

Core Web Vitals

Real-time LCP, CLS, FID & INP scores captured from the live page - not synthetic. See what Google actually measures.

PERFORMANCE

Performance Monitor

Pinpoint render-blocking scripts, oversized resources, and Time to Interactive regressions before they ship to users.

CORE

Schema & Structured Data

Detect JSON-LD, Microdata, and RDFa. Validate schema types and flag errors before submitting to Google Search Console.

A11Y

Accessibility Audit

Scores your page for WCAG compliance, highlights colour-contrast failures, missing ARIA labels, and keyboard-navigation issues.

TECHNICAL

Technical Health

Inspect robots.txt directives, sitemap entries, crawl budget hints, and canonical chains - in a single unified panel.

TECHNICAL

Open Graph Preview

Live-preview exactly how your page looks when shared on X, LinkedIn, Facebook, and WhatsApp - tweak and iterate instantly.

UTILITY

One-Click Export

Download a full SEO report as JSON or CSV - meta, headings, links, images, and vitals packaged in one structured file.

UTILITY

Notes & Sketchbook

Keep persistent, per-site audit notes right inside the extension. Never lose context between SEO review sessions again.

Simple as 1-2-3-4

Up and running in under 60 seconds

No sign-up wall, no configuration wizard. Install, visit a page, and your full SEO report is waiting.

01

Install the Extension

Add SEO Layers to Chrome in one click - no account needed, no API key, free forever on the base plan.

02

Visit Any Web Page

Navigate to any URL - your site, a competitor's page, or any article you want to audit. The extension works everywhere.

03

Open the Side Panel

Click the SEO Layers icon in your browser toolbar. The full audit panel opens instantly with every SEO signal surfaced.

04

Fix & Export

Review findings across meta, headings, links, images, Core Web Vitals and more. Export a full report in one click.

Simple pricing

Start free. Upgrade when you need more.

No hidden fees. No credit card required for the free plan. Cancel anytime.

Free
$0Forever free

Everything you need to get started with on-page SEO audits.

Install Extension — Free
  • Meta tags & Open Graph
  • Heading structure (H1–H6)
  • Basic link audit (50 links)
  • Image alt text checker
  • Schema detection
  • Dark mode
  • Core Web Vitals
  • CSV/JSON export
  • Competitor compare
  • Priority support
1 Month Free Trial
Monthly
$1.99/month

For SEO professionals who want full power with flexible billing.

Start Free Trial
  • Everything in Free
  • Real Core Web Vitals (LCP/CLS/INP)
  • Unlimited link audit
  • One-click CSV & JSON export
  • Google Search Console sync
  • Competitor side-by-side compare
  • Bulk page analysis
  • Priority email support
Best Value
Yearly
$9.99/year

For agencies and power users who need it all — save ~58% vs monthly.

Get Yearly Plan
  • Everything in Free
  • Real Core Web Vitals (LCP/CLS/INP)
  • Unlimited link audit
  • One-click CSV & JSON export
  • Google Search Console sync
  • Competitor side-by-side compare
  • Bulk page analysis
  • Priority email support

30-day money-back guarantee on paid plans. No questions asked.

Frequently Asked Questions

Direct answers about how our forensic SEO audit tool works to optimize your site.

What is SEO Layers?

SEO Layers is an advanced forensic SEO audit tool built as a Chrome Extension. It analyzes every structural layer of your website, from basic meta tags and Core Web Vitals to deep headings, schema markup, and image optimization directly within your browser.

How does the SEO analyzer tool work?

Once installed in Chrome, simply click the SEO Layers icon on any webpage. The extension instantly scans the DOM and network requests to generate a comprehensive, multi-layered SEO report, scoring your page on Technical Health, Accessibility, and Best Practices.

Is SEO Layers safe to use?

Yes, SEO Layers is 100% safe. It acts as a passive layer on top of your browser, simply reading the publicly available HTML and performance metrics of the page you are currently visiting. It does not inject malicious code or track your personal browsing history.

Can it audit JavaScript-rendered content?

Absolutely. Because SEO Layers runs as a Chrome Extension, it analyzes the live, rendered DOM. This means it accurately audits dynamic content generated by frameworks like React, Angular, Vue, and Next.js, not just the static source code.

Does it help with Core Web Vitals?

Yes. Our Performance tab specifically pulls in Real User Monitoring (RUM) approximations and Lighthouse scoring to give you immediate insights into LCP (Largest Contentful Paint), CLS (Cumulative Layout Shift), and INP (Interaction to Next Paint).

Ready to boost your rankings?

Your competitors are already using it.

Join 1,000+ SEO professionals who analyze smarter with SEO Layers. Install for free — no account, no credit card.

Install Extension — FreeGo to Dashboard →
No data leaves your browser
Instant — no page reload
Free forever base plan