AI SEO Guide
AI SEO Audit Checklist: 25-Point Guide to AI Visibility
A comprehensive checklist to evaluate and improve how AI search platforms find, understand, and recommend your business.
TL;DR — Your AI SEO Audit in 3 Categories
This checklist covers 11 technical checks (llms.txt, robots.txt, schema, Bing), 7 content optimization checks (front-loaded answers, structured data, E-E-A-T), and 7 visibility checks (testing across ChatGPT, Perplexity, Claude, Gemini). Score yourself: 20+ = strong, 15-19 = needs work, under 15 = urgent action needed.
Technical Foundation (11 Checks)
Technical setup is the foundation of AI visibility. Without these elements, AI platforms literally cannot find or understand your content. Most businesses fail at least 3 of these checks.
llms.txt file exists at yoursite.com/llms.txt
This file tells AI crawlers which content is most important. Without it, AI models may miss your best pages.
llms.txt contains structured markdown with headings and links
Use # headings, bullet points, and direct URLs to your key pages. Keep it under 10KB.
robots.txt allows GPTBot (ChatGPT's crawler)
Add 'User-agent: GPTBot / Allow: /' to your robots.txt. Without this, ChatGPT can't index your content.
robots.txt allows ClaudeBot (Claude's crawler)
Add 'User-agent: ClaudeBot / Allow: /'. Claude uses this to learn about your business.
robots.txt allows PerplexityBot
Add 'User-agent: PerplexityBot / Allow: /'. Perplexity crawls sites to provide citations.
robots.txt allows Bingbot and GoogleOther
ChatGPT uses Bing for real-time search. Google AI Overviews uses GoogleOther. Both must be allowed.
JSON-LD Organization schema on homepage
Tells AI platforms your business name, description, location, and contact info in a structured format.
JSON-LD Service schema on service pages
Describes what you offer, pricing, and service areas in a format AI can easily parse.
JSON-LD FAQ schema on key pages
AI platforms love FAQ content — it's pre-formatted question-answer pairs they can cite directly.
Site submitted to Bing Webmaster Tools
Critical for ChatGPT visibility. ChatGPT uses Bing's index for real-time data, so Bing must know your site exists.
XML sitemap exists and is valid
Helps all crawlers (including AI crawlers) discover your content efficiently.
Content Optimization (7 Checks)
Content optimization for AI is fundamentally different from traditional SEO. AI models don't rank pages — they extract answers. Your content must be structured so AI can easily pull out the information it needs.
Content front-loads answers (first sentence answers the heading)
AI models extract the first relevant answer they find. Don't bury the answer in paragraph 3.
Pages use clear H2/H3 heading hierarchy
AI parses heading structure to understand content organization. Messy headings = confused AI.
Content includes extractable formats (tables, lists, Q&A)
AI platforms prefer structured data they can cite. A comparison table is more citable than a paragraph.
Business name mentioned naturally 3-5 times per page
AI needs to associate your brand with the topic. Too few mentions = AI doesn't connect you. Too many = spam.
E-E-A-T signals present (author, credentials, sources)
AI weighs expertise signals. Include author bios, cite data sources, and reference industry standards.
Content has 'Last Updated' dates
AI platforms prefer fresh content. A visible update date signals your content is current.
Pages include internal links to related content
Helps AI understand your content ecosystem and the relationships between your pages.
Visibility Verification (7 Checks)
The ultimate test of AI SEO isn't your technical setup — it's whether AI platforms actually recommend you. These checks verify real-world visibility.
Test 10+ relevant prompts on ChatGPT
Ask ChatGPT questions your customers would ask. Are you mentioned? Where? With what context?
Test the same prompts on Perplexity
Perplexity provides citations — check if your pages are being cited as sources.
Test on Claude and Gemini
Different AI platforms have different training data. Test across all major platforms.
Check Google AI Overviews for your keywords
Search your key terms on Google and check if your site appears in the AI Overview section.
Identify which competitors ARE being mentioned
If AI recommends your competitors but not you, study what they're doing differently.
Track brand mentions monthly
Set up regular monitoring to track whether your visibility is improving or declining over time.
Check for negative or incorrect mentions
Sometimes AI mentions you with wrong information. Correct these by updating your content and structured data.
Want us to audit your AI visibility?
Get a free AI visibility score in 60 seconds, or book a comprehensive audit with our team.
Frequently Asked Questions
What is an AI SEO audit?
An AI SEO audit evaluates how visible your business is across AI search platforms like ChatGPT, Perplexity, Claude, and Google AI Overviews. It checks technical setup (llms.txt, robots.txt, schema markup), content optimization, and brand authority signals that determine whether AI recommends your business.
How often should I do an AI SEO audit?
Run a comprehensive AI SEO audit monthly. AI platforms update their models and data sources frequently, so what worked last month may need adjustment. AI Clearbridge runs automated weekly visibility checks and monthly technical audits for all clients.
What's the most important thing in an AI SEO audit?
The most impactful check is whether AI platforms actually mention your business when users ask relevant questions. Technical setup (llms.txt, schema markup) matters, but ultimately you need to verify that ChatGPT, Perplexity, and Claude are recommending you. Use the free AI Clearbridge visibility checker to test this instantly.
Can I do an AI SEO audit myself?
Yes. The technical checks (llms.txt, robots.txt, schema markup) can be done manually by visiting your site URLs. For visibility checking across multiple AI platforms, use AI Clearbridge's free visibility checker or manually ask each AI platform about your industry and see if you appear.