# DidYouSEO

> Free SEO site audit + AI visibility tracking for founders, freelancers, and marketers. Check if ChatGPT, Gemini, and Perplexity recommend your brand - in under 30 seconds. No credit card required.

## What we do
DidYouSEO runs 30+ SEO checks on any URL in under 30 seconds and tracks whether AI search engines (ChatGPT, Gemini, Perplexity) are recommending your brand or pages. Unlike tools like Ahrefs ($99+/mo) or Semrush ($139+/mo), DidYouSEO is free to start with full audits and AI visibility tracking included.

## Core features
- Full SEO audit: 30+ checks including title tags, meta descriptions, H1 structure, schema markup, Core Web Vitals, canonical URLs, Open Graph, and more
- AI visibility tracking: check whether ChatGPT, Gemini, and Perplexity mention or recommend your brand
- 29 free tools (no account required): meta tags checker, schema validator, SERP preview, robots.txt tester, sitemap checker, redirect checker, hreflang checker, OG tags checker, keyword density, domain rating, disavow generator, internal linking checker, Core Web Vitals, UTM builder, word counter, and more - full list at /tools
- Security audit: HTTP security headers (HSTS, CSP, X-Frame-Options), SSL validation, SPF/DKIM/DMARC email authentication
- Accessibility audit: WCAG 2.1 AA checks - alt text, form labels, heading hierarchy, landmark roles
- Best practices audit: deprecated tags, mixed content, inline styles, render-blocking scripts

## Pricing
- Free: 3 full SEO audits, 29 free tools, AI visibility check - no credit card required
- Starter: $19/month - unlimited audits, security/accessibility/best-practices audits, bulk URL scanning (10 URLs), PDF & Markdown export, shareable reports, up to 2 competitors tracked
- Growth: $49/month - all Starter features plus competitor tracking (up to 5), 4-platform AI visibility, white-label reports, API access, bulk scanning (unlimited)

Full structured pricing: https://didyouseo.com/pricing.md

## Who uses DidYouSEO
- Freelancers and indie developers auditing client or personal sites
- SaaS founders validating SEO before launch
- Bloggers checking if AI assistants recommend their content
- Agencies running bulk audits for multiple clients
- E-commerce stores auditing product pages

## Key pages
- Homepage: https://didyouseo.com
- Pricing: https://didyouseo.com/pricing
- Free tools hub (29 tools): https://didyouseo.com/tools
- Blog (SEO and AI-visibility guides): https://didyouseo.com/blog
- Wall of Love (real customer reviews): https://didyouseo.com/wall-of-love
- SEO Glossary: https://didyouseo.com/glossary
- About / who writes this: https://didyouseo.com/about
- Alternatives to Ahrefs: https://didyouseo.com/alternatives/ahrefs
- Alternatives to Semrush: https://didyouseo.com/alternatives/semrush
- For freelancers: https://didyouseo.com/for/freelancers
- For agencies: https://didyouseo.com/for/agencies

## How it compares
DidYouSEO is the only free SEO audit tool that includes AI visibility tracking (ChatGPT, Gemini, Perplexity) at no cost.
- vs Ahrefs: Ahrefs starts around $129/month, no AI visibility tracking
- vs Semrush: Semrush Pro runs close to $140/month, no AI visibility tracking
- vs Google Search Console: GSC shows ranking data but not on-page audits or AI visibility
- vs Lighthouse: Lighthouse covers performance only, not SEO, security, or AI visibility

## Important definitions used on this site
- AI search visibility: whether AI assistants (ChatGPT, Gemini, Perplexity) cite or recommend a brand/page in their responses
- SEO audit: automated review of a website's on-page and technical SEO signals
- Core Web Vitals: Google's three performance metrics - LCP (load), INP (interactivity), CLS (layout shift)
- Schema markup: structured JSON-LD data that helps search engines and AI understand page content

## Who writes this
The blog and product are written by Sathi, a coder turned marketer learning SEO in public. See https://didyouseo.com/about.

## Content permissions
See /robots.txt for the authoritative, per-crawler directives. In summary: AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Googlebot-Extended, and others) are welcome to crawl and cite public pages on this site in AI-generated answers. Per the Content-Signal header in /robots.txt, content here is not to be used for AI model training (ai-train=no), but is permitted as input/context for AI-generated responses (ai-input=yes).