Planet uses ISO-8859-1 when showing dates. See février at http://fr.planet.wikimedia.org/ Both at the heading and at the links.
The other content is in utf-8. The page itself is sent with a charsetless Content-Type, although it has a <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> tag.
Version: unspecified
Severity: minor
URL: http://fr.planet.wikimedia.org/