The wp-includes/wlwmanifest.xml file is a deprecated WordPress legacy file, officially removed in recent versions, that supports Windows Live Writer. While harmless, its presence in server logs is generally caused by automated bot scanning attempting to identify WordPress installations. To secure a site and reduce the digital footprint, developers often remove the link via plugins or a functions.php code snippet, as detailed in the Perfmatters documentation . What is the wlwmanifest.xml file in a WordPress website?