TLS/SSL Certificates

What is a Multi-domain SSL certificate?

SSL certificates are data files which link information about a company or an individual to a cryptographic key. Installed on a server, this certificate ensures the security of a connection between a browser and a web server. It activates the ‘https’ protocol and a padlock icon shows up in the search bar.

Pricing Options Prices for New Zealand, taxes excluded, in $ (NZD)

More info on multi-domain certificates

What can be secured with an SSL certificate?

SSL certificates are useful for protecting sensitive data such as:

  • Customer registration and identification data on a website (name, address, password, email, phone number, etc.),
  • Customers’ payment information (credit card, bank details, etc.),
  • Data entry forms present on the website,
  • Documents the customers can download,
  • Transactions,
  • Data storage.

What's the difference between the various types of SSL certificates?

More and more companies make use of both multi-domain and other SSL certificate types for various reasons. Generally speaking, SSL certificates are a means of:

  • Providing a high level of data confidentiality,
  • Reinforcing the confidence of Internet users in a website's legitimacy.

Extended Validation (EV) SSL certificates for businesses are available and make it possible to:

  • Verify the legal and physical existence of the company,
  • Check that the information conveyed about the company (its address, for example) is accurate,
  • Check that the domain name does, in fact, belong to the company,
  • Check that the company has given its permission to generate the certificate,
  • Limit the risk of being targeted by a phishing attack.

As for the multi-domain SSL certificate, it is useful for companies that have a list of addresses that they want to cover using a single certificate.

What are the advantages of a multi-domain SSL certificate?

Available in Standard and Business versions, a multi-domain SSL certificate can prove more cost-effective than purchasing and managing multiple single-address certificates. Gandi offers four package sizes to respectively secure:

  • A maximum of 3 domains,
  • A maximum of 5 domains,
  • A maximum of 10 domains,
  • A maximum of 20 domains.

Each address counts as a domain and will be deducted from the total number of allowed addresses. Thus, it is possible to protect ‘’, ‘’, ‘’, ‘’, etc. all at the same time.

Whenever necessary, you may regenerate the certificate to modify the number or the addresses themselves. This allows you to add or to remove secondary addresses should you wish to do so. The main address, however, is used to generate the CSR and therefore can’t be modified.

Regenerating a certificate is a simple operation. This may be done automatically, or manually: thanks to this option, you will be able to select new alternate addresses for your multi-domain SSL certificate.

Pricing Options Prices for New Zealand, taxes excluded, in $ (NZD)

FAQ / frequently asked questions

An SSL certificate lets you protect a web address, or a group of web addresses, in the case of Wildcard and Multi-domain certificates. Secure your transactions and give your users peace of mind. Customers who have Gandi hosting can get a free SSL certificate that can be automatically installed on each of the sites they've defined in their instance.

To get a URL starting with https and to secure your website, you can add any of the following SSL certificate types:

Gandi's SSL certificates provide assurances of the security of your site by displaying:

  • A green box in the address bar (either the text is shown in green letters or the entire bar is green, depending on the browser)
  • «https: //» appears with a chain icon
  • The name of the owner of the website
  • The name of the Certificate Authority (CA)

Here's what each type of SSL certificate that we offer is used for:

  • Standard SSL certificate: protects websites that don't make financial transactions
  • Wildcard SSL certificate: protects several websites that don't make financial transactions
  • Multi-domain SSL certificate: secures an administrative interface, a members space, an intranet, a webmail portal, etc.
  • Professional SSL certificate: secures a website that makes financial transactions or exchanges sensitive information. This type of certificate is only available for businesses or other legal entities
  • Business SSL certificate (EV): protects certain organizations that may be the target of attacks, like banks, for example, or large brands that want to reassure their customers that they are visiting their official website rather than a look-alike trying to steal their information. This type of certificate is only available for organizations with a "Business" type account or any other legal entity.
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