Uper SEO Auditor features

The extension’s screens one by one: what each shows and what you can read from it. Everything runs in the side panel of Chrome, Edge and Brave, without leaving the page you are analysing.

All metrics in one view

The dashboard shows SEO health immediately after opening the panel. Overall score, meta tag status, link distribution and Core Web Vitals - no scrolling or searching.

  • SEO Score 0-100 with category breakdown
  • Title and description length validation
  • Link distribution: internal, external, nofollow
  • Images with missing alt text

Core Web Vitals straight from the browser

Real measurements from Chrome Performance API, not estimates from external tools. You see exactly what Google measures.

  • LCP — Largest Contentful Paint time
  • CLS — Layout shifts during loading
  • INP — Responsiveness to user interactions
  • FCP and TTFB — Additional performance metrics

Full structured data validation

JSON-LD detection and validation according to Schema.org specification. Check if your data qualifies for Rich Results in Google.

  • Support for all 1007 Schema.org types
  • Required and recommended field validation
  • Preview of nested schemas and @graph
  • Specific guidance on what to fix

Tech stack recognition

Check what any site is built on. Useful for competitor analysis and technical audits.

  • CMS: WordPress, Shopify, Webflow, Wix...
  • Frameworks: React, Vue, Next.js, Astro...
  • Analytics: GA4, GTM, Hotjar, Clarity...
  • Hosting and CDN: Cloudflare, Vercel, Netlify...

Open Graph Preview

  • Preview how page looks on Facebook and LinkedIn
  • Validation of og:title, og:description, og:image
  • Image dimensions check (1200×630)
  • Detection of missing OG tags

Twitter Cards

  • Twitter/X card preview
  • Support for summary and summary_large_image
  • Validation of twitter:card, twitter:title, twitter:image
  • Fallback to Open Graph when Twitter tags missing

Link analysis

  • Breakdown: internal, external, nofollow
  • Broken Link Checker — verify HTTP statuses
  • Anchor text and rel/target attributes
  • Export list to CSV/TXT

Image audit

  • Alt text status for each image
  • Dimensions and format (WebP, AVIF, PNG...)
  • Lazy loading check
  • Export list to TXT

File and header verification

Quick check if the site has all necessary configuration files and correct security headers.

  • robots.txt, sitemap.xml, favicon
  • security.txt and llms.txt
  • Headers: CSP, HSTS, X-Frame-Options
  • Google services: GTM, GA4, Consent Mode v2

Sitemap Analyzer

Dedicated tool for comprehensive sitemap.xml analysis. Fetch all URLs from sitemap and check their health.

  • Fetch and parse sitemap index (nested sitemaps)
  • HTTP status of each URL from sitemap
  • H1 extraction and word count per page
  • Export to CSV with configurable columns

Export data in multiple formats

Download audit results and send to client or import into your own tools.

  • PDF — ready report for client
  • CSV — data for spreadsheets
  • JSON — integration with API and tools
  • TXT — lists of links and images

Try it for free

Install the extension and start analyzing any page in seconds

Version 2.8.2 • October 2026

Get from Chrome Web Store
5.0 · 6 ratings Works in Chrome, Edge and Brave