Gandi is a Domain Name Registrar which provides all the basic features for domain registration, hosting, and SSL. It is a great all-around site for someone looking to register a new domain quickly and get a site up and running. It also provides the user with the private domain registration which is included with the purchase of any domain.
The TLD used should not effect the ranking of your website in search engines. TLD’s or Top Level Domains refers to the last extension in a website url like .com, .edu, .org etc. Historically the TLD would signify the purpose of aDomain Name Registrars