llms.txt is put on the websiteroot directory(https://你的域名/llms.txt). Plain text files in Markdown format, proposed by the communityIndustry practice specifications (non-W3C/Google official mandatory standards), specially for large model crawlers (ChatGPT, Gemini, Perplexity Search Agent, etc.)Website simplified manual + content index.

There are also optional packages llms-full.txt: Package the core page body directly into a single file to make it easier for AI to read all content at once. Foreign trade B2B generally gives priority to deploying llms.txt, and only large knowledge bases require a full version.

Distinguish three documents in one sentence:

• robots.txt: Tell the crawlerDon't grab anything
• sitemap.xml: Give it to Google search engine and listall URLs
• llms.txt: Tell AI big modelWhich pages to read first and what does the pages say?Remove noise interference such as navigation bars, pop-ups, and advertisements on the web page

GEO's goals:Let overseas buyers ask AI to find suppliers, the AI can understand and accept your official website information, and put your brand in the AI answer.。 llms.txt is a basic component of the GEO technology layer, andSchema structured markupParallel.

1. Reduce the noise of AI reading web pages and reduce understanding costs Ordinary independent station HTML mixed navigation, sidebar, pop-up windows, JS code, AI extraction of product, factory, and qualification information is prone to errors, resulting inAI hallucination(Putting competitive product information on you and incorrectly describing your production capacity/MOQ/certification). llms.txt directly provides a clean text summary and guides AI to read it directlyProduct page, factory introduction, case, certificate, FAQOn these B2B high-value pages, skip irrelevant content.

2. Proactively declare your brand entity to AI (the most critical for foreign trade B2B) The company profile should be clearly written at the beginning of the document: main products, factory location, market, OEM/ODM capabilities, and core certification. It's equivalent to giving a large modelOfficial statement of the first party, help AI build your brand entity, solve brand disambiguation (confusion of duplicate factories) issues, and improve EEAT credibility.

3. Control the priority of AI grabbing, and key content is retrieved first Don't write all pages in the station, just select the core pages, and you can also set themOptionalPartition: Secondary content can be skipped when there is not enough AI context. Foreign trade independent stations are generally displayed: home page, product classification, factory introduction, customer case, certificate, procurement FAQ, contact page. When AI searches RAG, it gives priority to reading the high-value pages you mark to increase the probability of being cited.

4. Improve the accuracy of AI citations and reduce error information Pain points encountered by many foreign trade factories: When AI introduces your company, parameters and production capacity are incorrectly written. llms.txt standardizes key business descriptions, and AI references have a greater probability of using original information on the official website, rather than fragmented second-hand information on the entire network.

   Note:llms.txt itself is not a direct ranking weighting signal, will not let AI quote you out of thin air; what it solves isCan AI accurately read your information?; Whether it can be accepted or not still depends on the true content of the page, cases, qualifications, and endorsement of external authority (EEAT).

5. Cooperate with Schema to form an iron triangle of GEO technology GEO technology infrastructureCombination:llms.txt + JSON-LD(Schema) + Clean and structured page content

• Schema: Within a single page, tell AI what this page is (product, company, case)
• llms.txt: The whole station dimension tells AI the core content map of the entire website

# ABC Machinery Co., Ltd
> China manufacturer of industrial pumps, OEM & ODM available, ISO9001, CE certified, export to Europe, Southeast Asia.

## Core Products
- [Industrial Centrifugal Pump]([https://xxx.com/centrifugal-pump/](https://xxx.com/centrifugal-pump/)): Heavy duty pump for water treatment, custom material available
- [Self-priming Pump]([https://xxx.com/self-priming-pump/](https://xxx.com/self-priming-pump/)): Low noise, large flow rate, MOQ 1 set

## Factory & Trust Content
- [About Us]([https://xxx.com/about-us/](https://xxx.com/about-us/)): Factory scale, production line, QC system
- [Case Studies]([https://xxx.com/cases/](https://xxx.com/cases/)): Overseas project references & site photos
- [Certificates]([https://xxx.com/certificates/](https://xxx.com/certificates/)): CE, ISO, test reports

## FAQ for Buyers
- [Buyer FAQ]([https://xxx.com/faq/](https://xxx.com/faq/)): MOQ, lead time, payment terms, shipping

## Optional
- [Blog Articles]([https://xxx.com/blog/](https://xxx.com/blog/)): Industry technical guides

1. Don't pile up a lot of invalid URLs, only retain 10 - 15 core pages; putting 404 invalid links will damage AI trust
2. Requires regular updates: Change llms.txt synchronously after new products, new certificates, and cases are launched
3. llms.txt alone cannot do GEO:Must be matched with authentic and trustworthy content, schemas, and external authoritative sourcesSimply putting this file has almost no effect
4. Google officially made it clear:llms.txt is not a ranking factor for Google Search/AI Overview; It is more targeted at Perplexity, ChatGPT Agents, and various AI retrieval tools

llms.txt = For AI to seeForeign Trade Factory Information Catalog, belongs to GEO's underlying technical infrastructure. The role is not to directly get rankings, butReduce the difficulty for AI to understand your official website, reduce AI illusions, and improve the accuracy of AI reading core products and factory qualifications, increase the chance of being quoted by overseas procurement AI Q & A.