The most common reason is that your site is not indexed in Bing. ChatGPT uses Bing's search index to find websites, so if Bing does not know about you, ChatGPT cannot mention you. Other common causes: your robots.txt is blocking AI crawlers, your site does not clearly state what you do, no other websites mention your business, or your content is not structured in a way AI can use.

1. Your site is not in Bing's index

This is the single most common reason. ChatGPT's search feature pulls results from Bing. If your website is not indexed by Bing, ChatGPT has no way to find you.

How to check: Go to bing.com and search for your business name. If your website does not appear, you are not indexed.

How to fix it: Sign up for Bing Webmaster Tools (free), add your site, and submit your sitemap. It usually takes a few days for Bing to process your site. Our Bing submission guide walks through the steps.

2. Your robots.txt is blocking AI crawlers

Your website has a file called robots.txt that tells crawlers whether they are allowed to read your content. If it blocks GPTBot or OAI-SearchBot, ChatGPT cannot access your pages — even if Bing has indexed them.

How to check: Go to yoursite.com/robots.txt in your browser. Look for lines that say User-agent: GPTBot followed by Disallow: /.

How to fix it: Change Disallow: / to Allow: / for GPTBot, OAI-SearchBot, and ChatGPT-User. Full configuration in our robots.txt guide.

3. Your website does not clearly state what you do

AI platforms need to understand your business in order to recommend it. If your homepage says "Welcome to ABC Ltd" without explaining that you are a plumber in Croydon who handles emergency boiler repairs, ChatGPT has nothing useful to work with.

How to fix it: Your homepage H1 heading should clearly describe your business, services, and location. Every service page should have a specific, descriptive title. Write it the way a customer would describe what you do.

4. No other websites mention your business

ChatGPT does not just look at your website. It also looks at what other sources say about you. If your business is not mentioned on any directories, review sites, industry listings, or news articles, ChatGPT treats you as less credible.

How to fix it: Start with the free listings: Google Business Profile, Bing Places, Yell, industry-specific directories, and your local chamber of commerce. Get listed on as many relevant directories as you can. Each mention is a signal that your business is real and active.

5. Your content is not structured for AI

ChatGPT looks for clear, structured answers to questions. If all your content is in long, unbroken paragraphs with no headings, no FAQs, and no clear structure, AI has difficulty extracting useful information to cite.

How to fix it: Add FAQ sections to your key pages. Use question-format headings (H2 and H3 tags). Keep answers concise — 2-3 sentences for each FAQ answer. Use schema markup if you can (your web developer can help with this, or see our schema guide).

How long does it take to start appearing?

Once you have fixed these issues, it typically takes 2-4 weeks for Bing to re-index your site and for changes to start showing in ChatGPT results. It is not instant, but it is also not as slow as traditional SEO. The Bing submission is usually the fastest fix — that alone can get you appearing within days.

Still not appearing?

If you have checked all five of these and your business is still not showing up, request a free AI visibility audit. It will show you exactly where you stand across ChatGPT, Perplexity, Gemini, and Google AI Overviews, and what specifically needs fixing. You can also read the full ChatGPT optimisation guide for the complete technical breakdown.

Why Is My Business Not Showing Up in ChatGPT?