What Is ChatGPT SEO? What It Involves and How to Measure It

ChatGPT SEO is the work of getting your business found, cited and recommended when people ask ChatGPT for suppliers, products or advice. Strip away the jargon and it has four parts: solid traditional SEO, crawler access for OpenAI’s search bot, content built on real expertise, and reporting that links ChatGPT visits to enquiries and revenue. Skip any one of them and you’ve only done part of the job.

This guide explains what each part involves, how it differs from simply using ChatGPT to do SEO tasks, and what you can measure (and what you can’t). Most of the groundwork you can start yourself this week. If you’d rather hand it over, our AI SEO agency team covers ChatGPT alongside Google and Gemini.

TL;DR

• ChatGPT SEO aims to get your business mentioned and cited in ChatGPT’s answers. Using ChatGPT as a writing assistant is a different job.
• The foundations are familiar: crawlable pages, clear structure, original expertise and genuine third-party mentions.
• Allow OAI-SearchBot in your robots.txt file. OpenAI says sites that opt out of it won’t be shown in ChatGPT search answers.
• Track ChatGPT referrals through the utm_source=chatgpt.com parameter, then follow those visits through to enquiries and sales.
• Nobody can guarantee a ChatGPT recommendation. Hire the agency that explains how it will measure progress, not the one promising a position.

Table of Contents

• What ChatGPT SEO actually is
• What ChatGPT SEO work involves
• Using ChatGPT yourself: where it helps and where it needs a human
• Practical steps for a UK business
• How to measure ChatGPT SEO results
• Is ChatGPT traffic worth the investment?
• Applying this to ecommerce and lead generation
• Questions to ask if you hire help
• Our perspective
• Talk to us about ChatGPT visibility
• FAQ
• Sources

What ChatGPT SEO actually is

The phrase gets used for two quite different things, and the search results mix them up freely.

ChatGPT SEO is the work of making your brand visible inside ChatGPT’s answers: named, linked or recommended when a prospect asks a question in your category. It sits under the wider umbrella of generative engine optimisation (GEO) and answer engine optimisation (AEO). If those terms are new, our AEO, GEO and AI SEO glossary defines each one.

Using ChatGPT for SEO is the reverse. Your team uses the tool as an assistant for keyword grouping, outlines, schema drafts or audit checklists. It speeds up ordinary SEO work. It does not, on its own, make ChatGPT recommend you.

A good agency does both, but if you’re paying for a service you’re buying the first: visibility in AI-generated answers, built on top of search fundamentals. And the audience is large. OpenAI said in March 2026 that ChatGPT has more than 900 million weekly active users, which is why “ask ChatGPT” has quietly become a step in a lot of buying journeys.

Why it isn’t a separate discipline

Plenty of businesses assume they need a brand-new playbook. The evidence points the other way. Google’s own guidance on generative AI features says they are rooted in its core Search ranking and quality systems, so standard SEO practice still applies. The same page says you don’t need llms.txt or other AI-specific files to appear in Google Search, and that there’s no need to chop content into tiny pieces for AI to understand it.

ChatGPT is a different product, but the logic carries over. It cites web pages that it can reach, understand and trust. That’s why we treat ChatGPT visibility as an extension of search rather than a replacement for it. Our comparison of SEO and GEO sets out where the two overlap and where they genuinely diverge.

What ChatGPT SEO work involves

Done properly, the work runs as five workstreams. Here’s what each one involves and why it earns its place in the scope.

1. Technical access for OpenAI’s crawlers

If ChatGPT can’t reach your pages, nothing else matters. OpenAI’s overview of its crawlers says OAI-SearchBot is the bot used to surface websites in ChatGPT’s search features, and that sites opted out of it will not be shown in ChatGPT search answers (though they can still appear as plain navigational links). OpenAI recommends allowing it in robots.txt, and notes that changes can take around 24 hours to take effect.

The same page makes a point many site owners miss: each crawler setting is independent. You can allow OAI-SearchBot so you appear in search answers and make a separate decision about GPTBot, which relates to training OpenAI’s models. That’s a business decision, not a technical one, and your agency should talk it through with you rather than flipping switches quietly. We’ve seen security plugins and CDN firewall rules block AI crawlers without anyone at the business knowing, so the audit should check the firewall as well as the robots.txt file.

Structure matters too. OpenAI’s publishers and developers FAQ says its Atlas browser uses ARIA tags to interpret page structure and interactive elements, and recommends descriptive roles, labels and states on buttons, menus and forms. Accessible markup helps people and AI agents alike.

Typical technical tasks include:

• A technical SEO audit covering indexation, site speed, internal linking and rendering
• Reviewing robots.txt, security plugins and firewall rules so legitimate crawlers aren’t blocked
• Clean heading hierarchies and structured data so pages are easy to parse
• Fixing broken pages, redirect chains and duplicate content

2. Content that’s worth citing

AI systems tend to cite pages that say something specific. Google draws a line between commodity content, which is based on common knowledge anyone could supply, and non-commodity content that offers unique expert or experienced takes. Its advice is blunt: don’t just recycle what others on the internet have already said.

HubSpot makes the same point from the ChatGPT side. Its guide to ChatGPT for SEO says ChatGPT produces derivative content by design and can’t offer original research, lived experience or contrarian takes, and that the human layer is what makes content worth citing in AI answers.

In practice, that means:

• Expertise-led pages written with input from the people who do the work, not rewritten summaries of other sites
• The direct answer near the top of each page, then the detail underneath
• Service and location pages that say plainly what you do, where, for whom and on what terms
• Original data, examples and case material that other sites have a reason to reference

If you’re building a content programme from scratch, this collection of data-driven content strategy examples shows how distinctive material can come from numbers you already have.

3. Trust signals beyond your own site

When someone asks ChatGPT which supplier to use, the answer often reflects what the wider web says about a brand, not only what the brand says about itself. Digital PR, relevant trade and directory listings, reviews and regional coverage all help establish who you are and what you’re credible for.

This is the part that can’t be shortcut with volume. Google’s guidance says creating pages primarily to manipulate rankings or generative AI responses violates its scaled content abuse spam policy, and that a high quantity of pages doesn’t make a website more relevant. The same applies to bought mentions on low-quality sites. Real coverage on real publications is slower, and it’s the only version that lasts.

4. Entity clarity

Your business name, services, locations and key people should be described consistently across your website, Google Business Profile, social profiles, directories and press coverage. When the details contradict each other (an old address here, a service you dropped two years ago there), an AI system has less reason to trust any of them. A good service includes an audit of how your business is described everywhere it appears, and a plan to tidy it up.

5. Measurement and reporting

This is where many offers fall short, so it gets its own section further down.

Using ChatGPT yourself: where it helps and where it needs a human

If you want to bring some of the work in house, ChatGPT is useful for clustering keywords, building checklists and producing first drafts. Search Engine Land’s guide to ChatGPT for SEO warns that generative AI hallucinates facts “with conviction”, recommends a subject-matter expert review, and says it’s good practice to cross-reference ChatGPT’s keyword ideas with a dedicated keyword research tool or Google Search Console before you build pages around them.

Here’s a sensible split, task by task.

Keyword research

• ChatGPT can help with: grouping terms and brainstorming the questions people ask
• Needs a specialist: checking real demand and intent against search data

Content

• ChatGPT can help with: outlines, first drafts and rewrites
• Needs a specialist: original expertise, fact-checking and brand voice

Technical SEO

• ChatGPT can help with: checklists and first drafts of schema markup
• Needs a specialist: auditing the live site and fixing crawl and rendering issues (Search Engine Land notes that ChatGPT’s schema output isn’t always correct)

Links and digital PR

• ChatGPT can help with: ideas for story angles
• Needs a specialist: earning genuine coverage from journalists and trade publications

Reporting

• ChatGPT can help with: summarising analytics exports
• Needs a specialist: connecting visits to enquiries and revenue

The pattern holds for every task: ChatGPT speeds up the routine work, and the decisions stay with people who’ll have to answer for them.

Practical steps for a UK business

You can start on most of these this week, whether or not you hire anyone.

1. Check your robots.txt and firewall. Confirm OAI-SearchBot isn’t blocked, using OpenAI’s crawler documentation as your reference. Then ask whoever manages your hosting or CDN whether any bot-blocking rules apply.
2. Make sure key pages are indexable and fast. Pages that are hard to crawl are hard to cite.
3. Rewrite your core service pages. Say what you offer, who it’s for, where you operate and how engagements work. Use plain headings and put the direct answer first.
4. Add genuine expertise. Original examples, named authors who do the work, process detail and your own data where you have it.
5. Build external credibility. Relevant press, industry bodies and customer reviews. Relevance beats volume every time.
6. Set up measurement. Segment ChatGPT traffic in analytics (see below) and write down the questions you want to be recommended for.
7. Review quarterly. AI products change quickly, so revisit access settings, prompts and content every few months.

Our guides to generative engine optimisation and what still works in SEO go deeper on several of these steps, and our ten tactics for ranking on ChatGPT turns them into a working checklist.

How to measure ChatGPT SEO results

Measurement is where agencies most often over-promise, so it pays to be precise about what can actually be tracked.

Referral traffic

OpenAI says publishers who allow OAI-SearchBot can track referral traffic from ChatGPT, because ChatGPT automatically adds utm_source=chatgpt.com to referral URLs. Set up a segment or custom channel group for that source in GA4 so ChatGPT visits don’t vanish into “referral” or “direct”. Some visits will still arrive without the tag (someone copying a URL into a new tab, say), so treat the tagged number as a floor, not the whole picture.

Enquiries and revenue

Visits alone are a weak measure. The question that matters is whether those visits turn into form fills, calls, bookings or orders. Reporting should follow the visit through to the outcome, ideally into your CRM, so you can compare ChatGPT leads with Google and paid leads on quality as well as volume.

Mentions and citations

Keep a fixed, documented set of prompts that matter in your market (“best commercial roofer in Leeds”, “which accounting software suits a small charity”) and run them on a regular schedule. Record whether your brand is named, how it’s described and which pages are cited. Answers vary by user and by session, so what you’re looking for is the trend across months, not a single screenshot.

Traditional search

Rankings, clicks and conversions from Google remain the larger channel for most businesses. A sound programme reports both side by side, because the same improvements usually lift both. Google’s guidance also points site owners to the generative AI performance report in Search Console and advises scepticism towards third-party tools that promise ranking success. That’s sensible advice for ChatGPT tracking tools too.

Be wary of anyone promising a guaranteed position in ChatGPT’s answers. No agency controls them, and the answers change from one user and session to the next.

Is ChatGPT traffic worth the investment?

It depends on what a customer is worth to you, which is why the measurement above matters so much. Here’s an illustrative example (the figures are made up to show the sum, not taken from a client).

A Cheshire kitchen fitter gets 60 visits a month tagged utm_source=chatgpt.com. Five per cent turn into enquiries, so that’s 3 enquiries. One in three becomes a job, at an average gross profit of £4,000. That’s roughly £4,000 of gross profit a month from ChatGPT referrals, before counting the people who heard the name in ChatGPT and searched for it on Google later.

Now run the same sum for an online shop selling £15 phone cases with a £5 margin. Sixty visits converting at 2% is just over one sale a month. Same traffic, very different answer. Before you sign a retainer, do this sum with your own numbers. If an agency can’t help you do it, that tells you something.

Applying this to ecommerce and lead generation

Ecommerce brands. Shoppers increasingly ask AI tools to compare products and recommend where to buy. Strong category and product pages, clear specifications, reviews, delivery and returns information, and consistent product data all give AI systems material to work with. Conversion matters as much as visibility, which is the argument in our piece on why traffic alone no longer converts. If you’re on Shopify, development choices affect how easily pages are crawled and understood; our guide to choosing a Shopify agency covers what to check.

Lead generation businesses. Prospects often ask ChatGPT to shortlist suppliers or explain a service before they ever fill in a form. Pages that explain your process, who you work with, typical timescales and what the first conversation looks like tend to earn that early trust. Pair them with a clear route to enquire, and with reporting that shows which sources produce qualified leads. Our lead generation page explains how we connect search, paid media and conversion work.

Questions to ask if you hire help

The market is crowded and the terminology is inconsistent, so judge agencies on substance. Questions worth asking:

• Do they cover the foundations? Technical SEO, content and off-site authority should all be in scope. An agency selling only prompt tricks or schema is selling a fraction of the job.
• How do they handle OpenAI’s crawlers? They should be able to explain OAI-SearchBot access and the difference between search and training settings without reaching for notes.
• Who writes the content? Ask how real subject-matter expertise gets into the pages, and who signs it off.
• What does a report look like? Ask to see one. You want visits, enquiries and revenue, not just a list of prompts where your name appeared.
• Is the team joined up? SEO, content, development and paid media pulling in different directions waste budget.
• Are the claims realistic? Guaranteed rankings or instant results are a red flag, in ChatGPT as on Google.

Our longer guide to choosing an AI SEO agency expands on this checklist, and our GEO service page describes how a typical engagement runs. If you’d also like to appear in paid placements inside ChatGPT, our guide to ChatGPT ads explains how they work.

Our perspective

We see ChatGPT visibility as the result of good fundamentals applied with AI search in mind, not a trick to bolt on. Since 2014 our work has been about helping businesses get noticed wherever their customers search, and that now includes ChatGPT and Gemini as well as Google.

What we argue for is one joined-up approach. Traditional SEO, GEO and AEO draw on the same assets: a technically sound site, content written by people who know the subject, and credible mentions elsewhere. When one in-house team handles all of it, nothing gets lost between strategy, content, development and reporting.

We also think reporting should be tied to what a business owner cares about, which is enquiries and revenue. A mention in a ChatGPT answer is encouraging. It only counts when it turns into a customer. That’s the standard we hold our own work to, and the one we’d encourage you to hold any agency to, including us.

Talk to us about ChatGPT visibility

We deliver AI SEO, GEO and AEO alongside traditional SEO, technical audits, content, digital PR and analytics, all handled by one in-house team. We also run ChatGPT ads campaigns for businesses that want paid placements as well. If you’d like an honest view of where you stand in AI search, and what it would take to change it, get in touch.

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FAQ

What is ChatGPT SEO?

They’re the work of improving how often and how accurately ChatGPT mentions, cites or recommends your business. The work combines technical access, expert content, off-site credibility and measurement, and it builds on traditional SEO rather than replacing it.

Is ChatGPT SEO different from using ChatGPT for SEO?

Yes. ChatGPT SEO is about earning visibility inside ChatGPT’s answers. Using ChatGPT for SEO means using it as a tool for tasks such as keyword grouping, outlines and checklists. Anything the tool produces still needs a human check for accuracy and brand fit.

How do I know if ChatGPT is sending traffic to my site?

Look for the utm_source=chatgpt.com parameter in your analytics. OpenAI says ChatGPT adds it to referral URLs for sites that allow OAI-SearchBot. Create a segment for it, then follow those visitors through to enquiries or purchases so you can see whether the traffic is worth anything commercially.

Do I need to change my robots.txt file?

Only if it blocks OAI-SearchBot. OpenAI says sites that opt out of OAI-SearchBot won’t be shown in ChatGPT search answers. Its search and training crawlers are separate settings, so you can allow one and block the other. Check firewall and security plugin rules too.

Do I need an llms.txt file?

Not for Google: its guidance says AI-specific files aren’t needed and that llms.txt neither helps nor harms Search visibility. It’s harmless to add one for other services, but it’s no substitute for crawlable, well-written pages.

Can anyone guarantee that ChatGPT will recommend my business?

No. Answers vary by prompt and user, and no agency controls them. A good service strengthens the things you can influence (access, content quality, credibility and consistency) and reports honestly on inclusion and business results.

Sources

• OpenAI: Overview of OpenAI crawlers
• OpenAI Help Centre: Publishers and developers FAQ
• OpenAI: OpenAI raises $122 billion to accelerate the next phase of AI (31 March 2026)
• Google Search Central: Optimizing your website for generative AI features on Google Search
• Search Engine Land: ChatGPT for SEO guide
• HubSpot: ChatGPT for SEO

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