Legifrance (written Légifrance on the site) calls itself le service public de la diffusion du droit - the public service that puts French law online. It sits under the editorial responsibility of the Secrétariat général du Gouvernement, which shares its editorial design, updates and technical upkeep with the DILA, the Prime Minister's directorate for legal and administrative information. Everything is in French, and dates are typed in the JJ/MM/AAAA format.
The menu shows how the material is arranged. Droit national en vigueur (national law in force) holds the Constitution, the codes, the Textes consolidés, Jurisprudence, Circulaires et instructions and the Accords collectifs, split into Accords de branche et conventions collectives and Accords d'entreprise. Publications officielles holds the Journal officiel, the Bulletins officiels, the Débats parlementaires and Documents administratifs. Autour de la loi covers codification, the Guide de légistique, Statistiques de la norme and, under Législatif et réglementaire, Dossiers législatifs and Etudes d'impact des lois. Two further menus point to European Union and international law.
Three things matter to anyone who needs the data. Codes are consolidated: an article has a current version and a dated chain of earlier ones. The Journal officiel is the numbered, dated record of new texts, issue by issue. Case law spans the Cour de cassation, the Conseil d'État and the Conseil constitutionnel, and Cour de cassation decisions carry an ECLI next to the appeal number.