How to Optimize Website Content for Language Models Using /llms.txt? I. Why Do We Need a Dedicated File Format? 1.1 Practical Challenges Faced by Language Models When developers use large language models (LLMs) to process website content, they often encounter two major challenges: ▸ Information Overload: Standard webpages contain redundant elements like navigation bars, ads, and JavaScript scripts. The context window of language models (typically 4k-32k tokens) struggles to handle complete webpage data. ▸ Formatting Chaos: Converting HTML to plain text often loses structural information, affecting models’ understanding of key content. “ Real-world example: When programmers query API documentation, traditional …