.airliquide is an applied for brand domain and not available for public registrations.
L'Air Liquide, société anonyme pour l'Étude et l'Exploitation des procédés Georges Claude has submitted an application to ICANN for the .airliquide top-level domain. The application is currently under evaluation. While in this stage, .airliquide is not yet active in the DNS, and domains cannot be registered or resolved by the applicant(s).