This is a recording of a talk given at the International Search Summit Barcelona 2025. Log files are a key technical SEO asset, especially when working on larger websites: they are the only reliable source of data to understand what robots are doing on your website. Proper log file analysis can help you optimize internal links and structural aspects of your website, while daily monitoring can help you detect issues and fix them before they hurt your SEO performance. In a multilingual context, log file analysis can also bring additional insights to understand differences in treatment per country. In this talk, Julien Deneuville from Turo reviews best practices for log file analysis: what to look for, how to react, and the specifics of how this applies to multilingual websites.
