. lu is the country code top -level domain of Luxembourg. It was introduced on 30 June 1988 and has since been managed by the Foundation Téléinformatique Réseau de l' Education Nationale et de la Recherche.

A. Lu domain may be between three and 63 characters long and is fully automated within a few hours connected up. Since spring 2010, RESTENA supports the allocation of internationalized domain names. In addition to alphanumeric characters and special characters of the German and French language can be used in. Lu domains. In addition, account for the restriction in February of the same year that the administrative contact must necessarily have a residence in Luxembourg. Since lu domains can largely be registered without special restrictions and foreigners. .

Compared to other country-specific top -level domains has. Lu the peculiarity that the trade will not be taxed with domains in the country. A similar law was passed on 21 December 2007, which provides for a reduction in the sales tax on the trade and licensing of patents, trademarks and domain names just as well.