Free Site SEO Audit Chrome Extension & Web SEO Checker
SEOAegis — Quick SEO Inspector lets you run a fast site SEO audit in Chrome. Get SEO analysis for any website, perform a full SEO audit for website, and generate a detailed SEO page analysis in one click. Use it to check the SEO of a website — a reliable web SEO checker and web SEO analysis tool for marketers and developers. No login. Privacy-safe.
🔥 New in v1.5 — multi-word keyword density (2–4 words), a tabbed Words vs. Phrases UI, and a faster dedicated worker for smooth analysis on long pages.
See details →
Why use this Chrome extension for a site SEO audit?
⚡ Instant audits without leaving the page
🧭 On-page insights for titles, descriptions, headings, and schema
🔗 Technical checks for robots.txt, sitemaps, and status codes
🔍 Website checker with SERP preview and meta tag validation
🧠 Keyword density analyzer for single & multi-word phrases
🧷 Broken link checker (samples up to 20 URLs)
SEO page analysis & web SEO checker — what you can do
🔍 On-Page Checker
Inspect meta tags (title, description, canonical, robots)
Detect Open Graph & Twitter Card issues
Analyze headings (H1–H6) and duplicates
Google SERP preview tool with pixel-based truncation
🧩 Schema Markup Checker
Detects JSON-LD & microdata types
Common types: Article, FAQ, HowTo, Breadcrumb, LocalBusiness
🔗 Links & Content
Sample up to 20 links to flag broken or redirected URLs
Keyword density analyzer (single & multi-word phrases)
🧪 Full Audit
1-click full website audit on SEOAegis.com
Free · No login required
New technical panels
🕷️ Access Files panel
robots.txt & sitemap.xml
llms.txt & .htaccess (status only)
ads.txt, security.txt (/.well-known/security.txt)
humans.txt, ai.txt (/.well-known/ai.txt)
📡 Verification & Tracking panel
Google Analytics (UA & GA4), Google Tag Manager
Facebook Pixel
Meta verification: Ahrefs, Bing, Yandex, Pinterest, Semrush, Google
Who should use this website SEO checker
SEO professionals, web developers, bloggers, marketers, agencies, and website owners who want fast, reliable on-page checks without switching tabs.
🛡️ Verified by the Chrome Web Store team
What’s new in v1.5
Highlights
Multi-word keyword density — bigrams, trigrams, and 4-word phrases with frequency & percentage stats; includes stemming and edge stop-word controls
Tabbed UI for Words & Phrases — faster, clearer density analysis
Performance upgrade — phrase analysis runs in a dedicated worker for smooth, lag-free results on long pages
Also retained from v1.3
SERP Preview upgrade — homepage URLs show full https:// for accurate breadcrumbs
Smart tooltip positioning — no clipping at panel edges
Meta & Social Tags consistency — clear, uninterrupted tag details
Polished usability — same clean UI with improved clarity in edge cases
FAQs
Is this SEO Chrome extension free?
Yes. All features are free — no account required.
Is this a website SEO checker or just a plugin?
Both. SEOAegis is a Chrome extension that works as a website checker for on-page and technical audits.
Do you store my data?
No. Analysis runs locally in your browser. If you click “Run Full Audit,” we open SEOAegis.com in a new tab with the page URL you requested so you can export a report.
Can I export a report?
Yes. Use “Run Full Audit” to access export options (including PDF) on SEOAegis.com.
Check the SEO of a website in one click
Open any URL and click the extension to run a site SEO audit. You’ll get instant SEO analysis for a website — titles, descriptions, headings, schema, and link checks — plus a deeper SEO audit for website needs via the Full Audit flow. It doubles as a web SEO checker for quick wins and web SEO analysis when you need details.
Quick start — from install to insights
Install: Click Add to Chrome above.
Open a page: Navigate to any public URL you want to inspect.
