Audit any website's SEO performance, monitor competitors, protect your brand, and get actionable recommendations — all processed locally on your device. Free with ads, Supporter unlocks full power.
Comprehensive tools to analyse, monitor, and improve your website's search engine performance.
Analyse meta tags, headings, images, links, structured data, and 50+ technical SEO factors with detailed scoring and recommendations.
Learn more →Measure LCP, CLS, INP, and TTFB using Google PageSpeed Insights API. Understand your real-world performance metrics.
Learn more →Compare your SEO performance against up to 5 competitors. See where you win and where you need to improve.
Learn more →Detect if competitors are using your brand name in their SEO. Get alerts for potential trademark infringement.
Learn more →Flesch-Kincaid readability scoring, keyword density analysis, duplicate content detection, and word count assessment.
Learn more →Audit internal and external links, detect broken links, analyse redirect chains, and identify redirect loops.
Learn more →SSL certificate checking, mixed content detection, security headers, cookie analysis, and GDPR consent verification.
Learn more →Automatic spelling verification in 25+ languages. Detects page language from HTML and checks content quality.
Learn more →GPT-5.4 integration for executive summaries, prioritised actions, keyword suggestions, and content gap analysis.
Learn more →Find missing alt text, oversized images, non-optimal formats, and missing lazy loading. Get specific savings estimates.
Learn more →Generate professional PDF, HTML, CSV, and JSON reports. Share findings with clients or your team.
Learn more →Your audit history syncs across all your Apple devices via iCloud. Never lose your data.
Learn more →Monitor up to 5 domains automatically. Background scans with push notifications when scores change.
Visualise SEO score changes over time with interactive charts. Filter by domain and track improvements.
Generate JSON-LD structured data for 8 schema types. Copy and paste into your site for rich search results.
Internal link graph, redirect chain audit, SERP feature detection, pagination analysis, and JS/CSS coverage.
Get actionable SEO insights in three simple steps.
Simply paste your website URL and choose your scan depth: Quick (10 pages, free), Standard (50 pages, Pro), or Deep (100 pages, Pro).
SEO Auditor crawls your site like a search engine, checking technical SEO, content quality, and performance metrics.
Review your score, prioritised recommendations, and export reports. Track improvements over time.
Available for iPhone and iPad running iOS 26.0 or later. Free with ads. One-time Supporter purchase removes ads, unlocks Deep scans (100 pages), and enables AI-powered insights.
Now available on the App Store. Free with ads, Supporter unlocks everything.
Your data never leaves your device.
All SEO analysis happens on your iPhone or iPad. We don't collect, store, or transmit your website data to any server.
Use SEO Auditor without creating an account. No email, no registration, no tracking.