LLM SEO Checker is a free Chrome add-on designed to enhance your website's readiness for large language models (LLMs) like ChatGPT and Claude. It evaluates your site’s structure to ensure it meets essential AI citation and visibility standards, providing an instant LLM readiness score to help you gauge your current performance. The tool focuses on critical factors that matter to AI models, such as llms.txt files, semantic HTML, and content readability, making it a valuable resource for anyone looking to improve their online presence in the age of AI.

The program offers actionable recommendations tailored to boost your LLM visibility, ensuring that your content can be easily understood and ranked by AI algorithms. Users can also detect the presence of llms.txt files and generate them if necessary. Additionally, the Markdown export feature allows for quick conversion of web pages into AI-friendly formats, streamlining the optimization process. This tool is essential for bloggers, founders, and marketers aiming to stay relevant in a rapidly evolving digital landscape.