LLM SEO is one job said plainly: when someone asks a large language model for the best tool in your category, get surfaced instead of your rival. It goes by three names, LLM SEO, GEO and AEO, and they are the same measurement. This is what an LLM SEO tool should actually do, the shortlist, and a free way to see where you stand today.
The two ways an LLM meets your brand
Before picking a tool, it helps to know what one can and cannot move. A language model meets your brand in two ways, and only one of them is in play this quarter.
Training: fixed until the next model
What the model absorbed when it was built. It is why an assistant can name well-known brands with no search at all. You cannot edit it, and it updates only when the next model ships. A tool that promises to change what a model was trained on is selling something no one can deliver.
Retrieval: live, and the part you can win
When the assistant answers with search on, it fetches live pages and builds the answer from them. This is where a new or growing brand gets named without waiting for a training cut, and it is the only thing an LLM SEO tool can actually measure and move. So the whole job of a good tool is measuring your retrieval: are you fetched, are you cited, are you named, and from which pages.
Glotier
Free to start · shows the sources
Glotier asks ChatGPT, Gemini and Perplexity your buyers’ real questions, checks whether you are named, and shows every source page each answer was built from. It is the one tool here that publishes the measurements behind its own claims, and it is free to start with no card.
The Citation Agent: which of your pages an assistant can actually cite, and the fix for each
A paragraph-quality read of your pages: what an assistant can lift whole, and where a claim is missing its source
An X agent and a Reddit agent: the live threads worth answering in your category, with a reply drafted for each
A daily check, and an article written from what it measured that day, ready to publish
The same buyer questions re-asked every day, with every source page behind each answer
The category is full of tools that return one score and hide the work behind it. Four things separate a measurement you can act on from a number you can only worry about: it asks the real assistants rather than a proxy model, it shows the source pages behind each answer, it separates a page that was retrieved from one that was actually cited, and it can show you the evidence for its own claims. A tool that fails the last one is asking for faith, on a product whose entire pitch is measurement.
What we measured, 31 July 2026
Of 259 domains AI cited in the AI visibility category on 31 July 2026, 235 allowed every AI crawler.
18 of 244 of those sites block GPTBot but allow OAI-SearchBot, leaving ChatGPT search while opting out of training.
Only 5 of 259 cited domains block an AI search crawler by name, and all four are large publishers.
Sample: every domain an assistant actually cited across our own checks, not a top-100 list. Blocked means a whole-site disallow for the matching group, so partial rules are not counted and these figures understate blocking. 0 domain did not answer and is excluded rather than counted as open. How we measure
LLM-native answer trackers
Built around AI answers first. A good fit when generative search is the channel you care about most. Most do not watch your Google rank, so pair them with an SEO tool if you still want that side.
Otterly.AI
$29/mo
Otterly.AI tracks whether your brand shows up in AI search answers (ChatGPT and friends) and monitors prompts over time.
Rankscale is a dedicated AI-visibility and GEO tracker that monitors how your brand is ranked and cited across 17+ generative engines, with competitor benchmarking and citation analysis.
Temso AI is an AI-visibility and AEO platform that tracks brand mentions across AI engines and pairs them with an AI agent that drafts content, on-page fixes and outreach.
LLMClicks.ai is a GEO platform to track, audit and improve how ChatGPT, Perplexity, Gemini and Claude represent your brand, with a marketplace for buying placements in AI-cited listicles.
LLM Pulse is a GEO platform that tracks brand mentions, citations and sentiment across 14+ AI answer engines and measures AI-referred traffic, with fix recommendations.
GrackerAI is an AEO/GEO platform that monitors how AI engines cite your brand and generates content and citation fixes, with deep specialization in B2B SaaS and cybersecurity.
PromptOpti is a GEO platform that runs buyer-intent queries across AI assistants, shows where your brand ranks versus competitors, and hands you a prioritized fix and content plan, framed around revenue impact.
Strong Google SEO platforms that added AI-answer tracking on top. If you already live in one, its LLM feature may be enough. Weigh it against a tool that treats the measurement as the product.
Surfer SEO
$49/mo
Surfer SEO is a content optimisation platform that has added AI Search Analytics, tracking how a brand appears in ChatGPT, Perplexity, Gemini, Google AI Mode and AI Overviews.
Clearscope is a content optimisation tool that now also tracks brand mentions in AI answers, with prompt tracking across ChatGPT and Gemini and data on the searches AI runs to build an answer.
Frase is an SEO and content platform that researches, drafts and publishes content, and has added AI-visibility monitoring across up to 5 answer engines.
The free check is the front door: run it on any site and see whether the assistants name you, with the sources, no card. When you want it watched over time, Glotier starts at $9.99 a month for one product and $39 a month for 3, with no enterprise contract and no sales call. It is the source-level measurement the enterprise trackers charge into the thousands for, at a price a working team signs off without a meeting.
Cancel any time. Not for you? Email us within 7 days of a charge and we refund it in full.
An LLM SEO tool measures whether large language models like ChatGPT, Gemini, Perplexity and Claude surface your brand when someone asks them for the best option in your category, and shows the sources behind each answer.
Is LLM SEO the same as GEO or AEO?
They are three names for the same job: being the answer an AI assistant gives. GEO is generative engine optimization, AEO is answer engine optimization, LLM SEO is the plainest of the three. A good tool covers all of them because they are one measurement.
Do LLM SEO tools change my training data?
No, and neither can any tool. Training data is fixed until the next model. What you can influence today is retrieval: whether the model fetches and cites your page when it answers a live question with search on.
What does an LLM SEO tool cost?
From free checks to enterprise contracts in the thousands per month. Glotier is free to start with no card, and its first paid plan is $9.99 a month for one product.