On-Page SEO Inspector

Instant SEO audit with health score, meta/OG/Twitter, headings, links, images, schema, resources, tech checks, issues & full report.

On-Page SEO Inspector — Instant SEO Audit for Any Web Page Audit any page in one click. Open the extension on the tab you are viewing and get a complete on-page SEO breakdown — no account, no signup, and no external servers required. Built for developers, SEO specialists, marketers, and content teams who need fast, accurate page-level insights without leaving the browser. KEY FEATURES ✅ SEO Health Score Get an instant 0–100 score based on essential on-page SEO signals so you can see page health at a glance. ✅ Meta Tags & Social Preview Inspect title, meta description, canonical URL, robots, viewport, charset, HTML lang, and theme-color. Preview Open Graph and Twitter Card tags including OG image, type, and URL. ✅ Smart Issues List Automatically flags common SEO problems such as: • Missing title, description, or canonical • Missing OG image, og:title, or twitter:card • Title or description too long • Missing H1 or multiple H1 tags • Images missing ALT text or width/height • Missing JSON-LD structured data • Invalid JSON-LD scripts • Heading hierarchy issues • Too many internal resources • External third-party scripts detected ✅ Headings Audit View all H1–H6 tags, heading counts, hierarchy issues, and structure problems in one place. ✅ Links Analysis See total, internal, and external links with detailed lists for quick review. ✅ Image Audit Check images for missing ALT attributes, missing dimensions, and other common image SEO issues. ✅ Schema / Structured Data Detect JSON-LD scripts, schema types, validity, and preview structured data on the page. ✅ Resources & Performance Signals Review external scripts (analytics, marketing, third-party), internal scripts, stylesheets, preloads, resource hints, and inline SVG usage. ✅ Technical SEO Inspect document details, favicons, stylesheets, scripts, local storage, and session storage entries. ✅ Character Counters Track title and description length with visual progress bars (ideal for SEO length guidelines). ✅ Export & Reporting • Copy all SEO data to clipboard • Export results as JSON or CSV • Open a full printable SEO report HOW IT WORKS 1. Navigate to any website 2. Click the On-Page SEO Inspector icon 3. The page is scanned automatically 4. Review results across 8 organized tabs: Overview, Meta, Headings, Links, Images, Schema, Resources, and Tech PRIVACY FIRST • Works locally in your browser • Only accesses the active tab when you open the extension • Does not collect or sell your browsing data • No account required • No ads or trackers inside the extension PERFECT FOR • SEO audits and client site reviews • Debugging meta tags and social sharing previews • Checking heading structure and internal linking • Validating JSON-LD schema markup • Quick pre-publish checks for blogs, landing pages, and e-commerce sites • Developers working on Next.js, WordPress, Shopify, and other CMS platforms WHY ON-PAGE SEO INSPECTOR? Unlike basic meta tag viewers, On-Page SEO Inspector gives you a full page-level SEO toolkit — health score, issues, headings, links, images, schema, resources, and technical checks — all in a clean, fast popup with export and full report support. Install now and inspect any page instantly.