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Free SEO Tools

Instant, single-purpose tools grouped by what they do. Need the full picture? Run a complete SEO audit.

AI & Answer Engines On-Page & Content Technical SEO Performance & Mobile Monitoring & Utilities

AI & Answer Engines13 tools

AI Bot Access Checker

Can ChatGPT, Perplexity, Claude & Gemini crawl your site? Checks robots.txt + live CDN/WAF blocks.

AI Visibility Checker

See what ChatGPT, Claude & Perplexity know about your brand — and how to improve it.

NLP Content Analyzer

Topics, entities, search intent & content gaps an NLP model sees in your page.

AI Retrieval Checker

AI/AIO readiness — can ChatGPT, Perplexity & AI Overviews find, chunk & cite your page?

AI Crawler Log Analyzer

Upload your access log to see which AI bots (GPTBot, ClaudeBot, PerplexityBot) actually crawled you — with spoofed-vs-verified detection.

Bot-Eye View (Raw vs Rendered)

See your page the way AI crawlers do — GPTBot & PerplexityBot don’t run JavaScript. Reveals content, links & schema that are invisible to AI, with fixes.

Question Gap Finder

Enter a URL to see the real questions people search that your page doesn’t answer yet — straight from autocomplete. Turn the gaps into AEO content & FAQ schema.

llms.txt Validator

Check & score your /llms.txt against the spec — title, summary, sections & working links.

FAQ Schema Generator

Turn questions & answers into valid FAQPage JSON-LD — structured answers ChatGPT, Perplexity, AI Overviews & Bing can cite.

Answer Extractability Checker

Score how easily ChatGPT, Perplexity & AI Overviews can extract and cite any page — with concrete fixes.

AI Quote Simulator

See the exact passages ChatGPT, Perplexity & AI Overviews would quote from your page — the queries each wins & what to add to get cited.

llms.txt Generator

Generate a spec-compliant /llms.txt — handy for AI coding tools & agents (an emerging convention, not a proven search-citation lever).

AI-Readiness Monitor

Track your site’s AEO/GEO/AIO grade over time — free scheduled checks with an email digest of what changed and what to fix. No signup.

On-Page & Content10 tools

Instant SEO Snapshot

One-click SEO & AI-readiness grade for any page — HTTPS, indexability, title, meta, headings, content & more. Embeddable on your own site.

Keyword & Question Idea Generator

Hundreds of real questions, comparisons & related searches people type — from Google, Bing & DuckDuckGo autocomplete. AnswerThePublic-style, free.

Search Console Opportunity Finder

Connect your Google Search Console (or upload the CSV) to find your fastest wins — striking-distance keywords (pos 4–20), title/meta rewrite opportunities & hidden gems.

Meta Tag Checker

Title, meta description, canonical & Open Graph tags with a live Google preview.

Heading Checker

See the H1–H6 outline and catch missing or duplicate H1 tags.

Open Graph Checker

Preview your Facebook, LinkedIn & X social cards and find missing tags.

Meta Tag Generator

Generate title, description, Open Graph & Twitter Card tags to copy.

SERP Snippet Preview

See your Google result on desktop & mobile with pixel-width truncation.

Word & Density Counter

Word count, reading time, and keyword-density breakdown.

Open Graph Image Generator

Design a 1200×630 social share image (og:image) in seconds — title, subtitle, brand & theme — and download the PNG. No design tools.

Technical SEO10 tools

HTTP Header Checker

Full response headers plus a security-header scorecard (HSTS, CSP, and more).

Website Security Checker

Passive security scan — TLS, security headers, CSP, cookies, SPF/DMARC email spoofing, HSTS & exposed .git/.env — with an A–F grade and fixes.

Domain Checker

Registrar, domain age, expiry, nameservers & full DNS records for any domain.

Hosting Checker

Find where a site is hosted — provider, IP, location, CDN & web server.

Robots.txt Tester

Validate crawl rules and test whether a path is blocked.

Indexability Checker

Can Google index this URL? Cross-checks meta robots, X-Robots-Tag, canonical & robots.txt and catches the contradictions that keep pages out of search.

Schema Markup Generator

Generate valid JSON-LD structured data — Article, Product, Org, LocalBusiness, Breadcrumb, HowTo & more.

Schema Markup Validator

Validate JSON-LD from a URL or pasted markup — required & recommended fields per type, with a Google Rich Results deep link.

Robots.txt Generator

Build a valid robots.txt with disallow rules and a sitemap line.

Redirect Checker

Trace a URL’s full redirect chain hop by hop — status codes, final destination, canonical & robots — and catch loops, long chains & HTTPS downgrades.

Performance & Mobile4 tools

UI/UX Checker

Accessibility, tap targets, font legibility & best practices via Google Lighthouse.

Responsive Design Checker

Render any page at mobile, tablet & desktop widths — catch horizontal scroll, overflow, oversized images & a missing viewport tag, with a responsive score.

CrUX History Trends

Real-user Core Web Vitals over ~40 weeks (LCP, INP, CLS, FCP, TTFB) from the free Google Chrome UX Report — the trend view the old CrUX Dashboard gave.

LCP & CLS Culprit Finder

Find the exact element behind your LCP, the elements causing layout shift, unsized images & render-blocking resources — from a real Lighthouse test, with fixes.