Semrush contributor Tushar Pol has published an article answering the question, “What Is LLMs.txt & Should You Use It?”.

He says, “llms.txt is designed to help AI crawlers browse websites more effectively. Right now, these crawlers run into two major challenges:

  • Modern websites are hard to read. Most AI crawlers can only read your pages’ basic HTML—not content that gets loaded by JavaScript. That means llms.txt provides a clear, structured format that helps AI crawlers quickly digest the information.
  • Most websites have an overabundance of information. When AI crawlers visit your website, they don’t necessarily know what’s important. If they spend time scraping pages that aren’t useful (like older blog posts), they may generate responses based on suboptimal information—llms.txt helps solve this problem.

llms.txt may also reduce the inefficiencies in large language model training.

There’s a massive computational cost involved in training LLMs. With llms.txt guidance, LLMs are less likely to waste resources on irrelevant content.”

What Is LLMs.txt & Should You Use It?

Semrush

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