44 free tools · no signup
Free SEO Tools
Instant, single-purpose tools grouped by what they do. Need the full picture? Run a complete SEO audit.
Several of these also run as a free widget on your own site — one line of HTML, hosted by us.
AI & Answer Engines14 tools
AI Bot Access Checker
What does your robots.txt say to OAI-SearchBot, PerplexityBot, Claude-SearchBot, GPTBot and the rest? Read with the real rules.
AI Model Recall Checker
Ask free AI models the unbranded questions your buyers type, and count how many name your brand unprompted — with each model and its training cutoff shown. It measures what those models remember from training, not a live check of ChatGPT, Claude or Perplexity; a built-in panel lets you spot-check the real engines by hand.
NLP Content Analyzer
Topics, entities, search intent & content gaps an NLP model sees in your page.
AI Retrieval Checker
AI-retrieval readiness for one page — an AI model’s read of how findable and quotable it is, with fixes.
AI Crawler Log Analyzer
Upload your access log to see which AI bots (GPTBot, ClaudeBot, PerplexityBot) actually crawled you — with IP verification where the operator publishes ranges. Runs in your browser.
AI Citation Report (Bing Copilot)
Upload your Bing Webmaster AI Performance export to see which of your pages Microsoft Copilot and Bing’s AI answers cite, and how that trends. Covers Copilot and Bing only — Google’s AI numbers are in Search Console’s own Generative AI report. Runs in your browser.
Bot-Eye View (Raw vs Rendered)
See your page the way a raw-HTML crawler does — GPTBot, ClaudeBot and PerplexityBot don’t run JavaScript. Reveals content, links & schema they never receive, 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. The file itself is optional and unscored in our audit.
FAQ Schema Generator
Turn questions & answers into valid FAQPage JSON-LD. Optional markup: Google retired FAQ rich results, Microsoft says it helps Copilot.
Answer Extractability Checker
Score how extractable a page’s answers are — nine on-page signals behind featured snippets and AI extracts, with concrete fixes.
AI Quote Simulator
Which passages on your page read as clean, liftable answers? A model picks them; every quote is verified verbatim. A simulation, not a live check.
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 readiness grade over time — free daily or weekly 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 — live from search autocomplete (Google first, Bing and DuckDuckGo as fallbacks). AnswerThePublic-style, free.
Search Console Opportunity Finder
Upload your Google Search Console export 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 SEO13 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.
Hreflang Checker
Check a page’s hreflang tags, then open every language version it lists to confirm each one loads, is indexable and links back, the pairing Google needs before it uses them.
XML Sitemap Validator
Check your XML sitemap against the protocol and Google’s limits, then test a live sample of the pages it lists for errors, redirects, noindex and wrong canonicals.
Broken Link Checker
Check every link on a page and see which ones are dead — follows redirects to the real destination, and keeps firewall 403s out of the broken list instead of crying wolf.
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.
Monitoring & Utilities3 tools
Website Uptime Monitor
Free, no-signup uptime monitoring — we check your site around the clock and email you the moment it goes down (and when it’s back).
Marketing Calculators
ROAS, ROI, CPC, CPM, CTR, CPA, conversion rate, CLV & break-even ROAS — instant, with the formula shown.
UTM Campaign URL Builder
Add UTM tracking parameters to any link so campaign traffic shows up correctly in Google Analytics.
Open source
SEO Check for GitHub Actions
Catch SEO mistakes before they ship. Our free, MIT-licensed GitHub Action checks your built pages or a live deploy in CI and fails the build on an accidental noindex, a missing title or one too wide for Google, a broken internal link, or a robots.txt that blocks the whole site.