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Minorank SEO Inspector

The Minorank SEO Inspector is a free browser extension for Chrome and Firefox that analyses any webpage instantly, no login, no account, no data sent to servers. Open it on any site and get a full SEO audit covering content, technical, performance, links, social previews, keywords, and tracking tags.

Download links:

Installation​

Chrome

  1. Click "Add to Chrome" on the Chrome Web Store page
  2. Confirm the installation prompt
  3. Click the Minorank icon in your browser toolbar on any webpage

Firefox

  1. Click "Add to Firefox" on the Mozilla Add-ons page
  2. Confirm the installation prompt
  3. Click the Minorank icon in your browser toolbar on any webpage

Overview Tab​

The Overview tab gives you an instant SEO score (0–100%) and a pass / warn / fail breakdown across all critical on-page signals.

Overview tab showing pass/warn/fail SEO score

Checks include:

  • Page title (length, presence)
  • Meta description (length, presence)
  • H1 heading (exactly one, content)
  • Canonical URL (set or missing)
  • Robots indexing (follow/noindex signals)
  • Image alt text (missing count)
  • Content length (word count vs. 300-word target)
  • Open Graph tags (og:title, og:description)

At the bottom of the Overview tab you'll find report export options and the AI Recommendations section (requires a connected Minorank account).

Overview tab report export and AI recommendations

Content Tab​

Meta Title & Description​

Character-counted view of the page's meta title and description with a live progress bar and a "Copy" button on each.

Content tab showing meta title and description with character counters

Also shows:

  • Content Freshness, published date and last-modified date with relative age
  • Heading Hierarchy Issues, detected H-tag skips (e.g. H5 after H2)

Heading Tree​

Full heading outline (H1–H6) with total heading count and H1 validation.

Content tab heading tree showing H1 and all H2 headings

Keyword Density & Readability​

  • Flesch Reading Ease score with grade level
  • Keyword density table sorted by frequency
  • Top 3-word phrases

Content tab keyword density and Flesch reading ease score

Technical Tab​

Mobile-First & Indexability​

  • Page Indexability, combined verdict from robots meta, robots.txt, and canonical
  • Mobile-First, viewport tag, zoom, horizontal scroll, text size, tap target size, image dimensions

Technical tab mobile-first checks and page indexability

Redirect Chain & Robots​

  • Full redirect chain with HTTP status codes
  • Canonical URL display
  • Robots meta tag content
  • robots.txt file viewer

Technical tab showing redirect chain, canonical URL, and robots.txt

Schema.org JSON-LD​

Detects and validates all Schema.org JSON-LD blocks on the page. Shows detected schema types, validates required and recommended fields, and displays the raw JSON.

Technical tab Schema.org JSON-LD validator

Rich Snippet Eligibility​

Shows which rich result types are detected or not set for the current page, Article, Product, FAQ, How-to, Review Stars, Business Panel, Breadcrumb, and more.

Technical tab rich snippet eligibility checker

Also works on product pages:

Technical tab rich snippet eligibility on a product page showing Product Info detected

Performance Tab​

Speed Grade & Core Web Vitals​

  • Speed grade (A / B / C / F) with TTFB and full load time
  • Core Web Vitals: LCP, CLS, INP, FID

Performance tab showing speed grade B and Core Web Vitals

Image Optimisation​

Lists all images on the page with format, network weight, and load time. Flags legacy formats (JPG/PNG where WebP/AVIF is possible) and missing alt attributes.

Performance tab image optimisation table

Full link inventory with a summary of internal, external, nofollow, and sponsored links. Expandable sections list each URL with its anchor text.

Links tab showing link summary with internal and external counts

The Broken Link Checker scans all links on the page for 404s and redirects.

Links tab broken link checker showing 0 broken links

Social Tab​

SERP Preview​

Live Google SERP preview for desktop and mobile, with character count feedback on title and description.

Social tab SERP preview showing desktop and mobile Google search result

Social Cards​

Open Graph card preview for Facebook and LinkedIn.

Social tab Open Graph social card preview

Competitor Compare​

Paste a competitor URL and compare your SERP snippet side by side, title length, description length, and keyword highlighting.

Social tab competitor SERP comparison

Keywords Tab​

Enter a focus keyword and instantly see how many of the 6 key on-page locations contain it: page title, meta description, H1 heading, URL slug, first paragraph, and image alt text.

Keywords tab focus keyword checker showing 3 of 6 locations

Tags Tab​

Detects 13 analytics and marketing tools on the page, showing each tool's name and account/container ID.

Detected tools include: Google Tag Manager, Google Analytics 4, Meta Pixel, Hotjar, Microsoft Clarity, HubSpot, LinkedIn Insight Tag, TikTok Pixel, Microsoft Ads, and more.

Tags tab showing Google Tag Manager and GA4 detected with their IDs

Report Export​

From the Overview tab you can export a full audit in three formats:

FormatContents
PDF ReportFull printable audit, all tabs, all data
ZIP ExportJSON data file + standalone HTML report
JSON ExportRaw audit data for developers and integrations

AI Recommendations​

The AI Recommendations section at the bottom of the Overview tab provides personalised, AI-powered SEO suggestions for the specific page you're auditing. This feature requires a connected Minorank account, click Connect Minorank Account in the extension to link it.

Privacy​

All analysis runs locally in your browser. No page data, no personal information, and no browsing history is ever sent to Minorank or any third party. The only data stored locally (in your browser) is meta titles and descriptions, used exclusively to warn you about duplicate content across pages you visit.