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Free On-Page SEO Audit (Zero Paid API Key Needed)

Published by AppStudio Desk • Updated for 2026 Chrome Web Store

Frustrated with SEO Minion requiring a paid Keywords Everywhere API key? SEOAudit Pro delivers 1-click on-page SEO audits, heading trees, schema detection, and CSV export completely free.

Feature & Policy Comparison

Key Metric / Capability SEOAudit Pro (AppStudio Desk) SEO Minion (Legacy)
Mandatory Paid API Key ✅ Zero API Key Required (Runs Locally) ❌ Requires $72/yr Keywords Everywhere API
On-Page Meta & Status Check ✅ 1-Click Instant Audit ❌ Locked / Limited on Free Tier
H1–H6 Visual Heading Tree ✅ Visual Hierarchy Tree ❌ Basic list only
JSON-LD Schema Validator ✅ Scans All Schema Types ❌ Requires external login
Client Audit CSV Export ✅ 1-Click CSV Export ❌ Requires paid subscription

Transparent Pricing Structure

SEOAudit Pro follows our clean pricing policy: Free Forever Tier • £29/yr or £49 Lifetime Pro. There are no surprise price hikes, no required third-party API subscriptions, and all billing is self-serve via Stripe.

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Privacy & Data Security

Unlike older extensions that embed analytics scripts, SEOAudit Pro runs locally in your browser sandbox. No account is needed for the free tier, zero personal history is collected, and no user data is sold. Pro licenses use simple email login via Stripe and ExtensionPay.