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Installing a Third-Party SSL Certificate

If you are on a Pro or Enterprise plan, you can install an SSL certificate from a third-party certificate issuer. For a third-party SSL certificate, you will need to generate a CSR (Certificate Signing Request) in BigCommerce, which will give the SSL certificate provider the necessary information to create a working SSL certificate.

If you're on a Standard or Plus plan, you can use the automatically enabled free SSL certificate or purchase one from BigCommerce.


Generating a CSR (Certificate Signing Request)

You will need to generate a CSR (Certificate Signing Request) to provide your third-party certificate issuer before generating an SSL certificate. The CSR contains store and server information necessary for the SSL certificate to be installed successfully.

1. Log into your store as the Store Owner, and go to Server SettingsSSL Certificate.

2. Click Generate a CSR.

Generate a CSR option

3. Complete the required information, then click Generate CSR.

CSR details

  • Approver Email — the email address selected from the drop-down menu to approve the SSL request. You must have access to this email address to complete the SSL install process.
  • Common Name (CN) — the fully qualified domain name you wish to secure (selected in Step 2)
  • Organization Name (O) — usually the legal incorporated name of a company. It should include any suffixes, such as Ltd., Inc., or Corp.
  • Organizational Unit (OU) — the department name (e.g. HR, Finance, IT)
  • Locale (L) — city or town (e.g. Austin, San Francisco, Sydney)
  • State/Province (S) — state, province, region, or county
  • Country Code (C) — the two-letter ISO code for the country where your organization is located (e.g. US, CA, GB)

4. On the following page, you will be provided the CSR. Click anywhere in the box and copy the entire block of code, including the lines that contain -----BEGIN CERTIFICATE REQUEST----- and -----END CERTIFICATE REQUEST-----.

CSR code highlighted and ready to copy

We'll also email the generated CSR to the store owner's email address. The message will have the subject line, A new CSR has been generated for your SSL certificate.


Generating and Installing the SSL Certificate

You can now generate your SSL certificate with your third-party provider, using the CSR from the previous section. If you've already received your SSL certificate before getting the CSR, reach out to your SSL certificate issuer for guidance on reissuing the SSL certificate.

1. Provide the certificate issuer with the CSR you copied in the previous step.

2. Use the following settings when downloading your SSL certificate:

  • Server type - Apache or Apache Mod (HTTP)
  • Hash - SHA-2 (SHA 256)
  • Bit Strength - 4096-bit or 2048-bit

3. You will receive two files: the SSL certificate and a bundle containing the intermediate certificate. If you receive them combined in a zipped file, extract them on your computer before proceeding.

4. Open the certificates using a text editor, such as Notepad or TextEdit. You may need to launch the text editor first, then navigate to your certificate files. Copy the SSL certificate, including the lines that contain -----BEGIN CERTIFICATE----- and -----END CERTIFICATE-----.

Text editor sample

5. In the BigCommerce control panel, go back to Server SettingsSSL Certificate, then click Install a 3rd party SSL.

Install a Third-Party SLL option

6. Paste your SSL Certificates into the appropriate fields. Ensure that there are no spaces before and after the dashes at the start and end of the certificate.

  • SSL Certificate — the SSL certificate; it will not be labeled bundle, CA, or intermediate
  • Intermediate Certificate — the SSL certificate that is labeled bundle, CA, or intermediate; may consist of multiple blocks of code.

7. Click Install SSL Certificate.

Install SSL Certificate

Your SSL certificate will take approximately 20 minutes to install. After this time, you can use the tools listed below to verify that it was properly installed.


Update your DNS! Switching to a private SSL will change your IP address. If you are pointing to your store using an A record, you'll need to update the DNS at your register with your new IP address.


Installing a Multi-Domain or Wildcard SSL Certificate

Multi-domain and wildcard SSL certificates have the capacity to cover multiple domains or subdomains. As such, they can be very useful if you are running multiple stores or a single store with several sub-sites. Multi-domain SSL certificates will work with any domain name entered as the Common Name or SAN (Subject Alternative Name) when purchasing the SSL certificate. Wildcard SSL certificates can be used for multiple subdomains of a single domain. For example, you could purchase a single wildcard SSL certificate to apply to,,, and so forth.

SSL certificates require a private key that matches the CSR used to generate them. BigCommerce does not provide private keys, and CSRs generated by BigCommerce cannot be used for a certificate that has a wildcard common name or a common name other than the domain/subdomain of the store. Therefore, when installing a multi-domain or wildcard SSL certificate, you will need to follow some additional steps to generate a private key beforehand.

1. Generate a CSR and private key using a CSR generator. Store the private key somewhere safe on your computer, and do not share it with anyone.

2. Provide the CSR to the certificate authority (CA) you purchased the wildcard SSL certificate from and have them reissue or regenerate the certificate. They will also provide you with an intermediate certificate.

3. In your BigCommerce store, go to Server SettingsSSL Certificate. Select Install a 3rd party SSL.

4. Enter the SSL certificate, private key, and intermediate certificate provided by your certificate authority. Click Install SSL Certificate.

5. You should see a success message. If not, check for any extra spaces before and after the SSL certificate, private key, and intermediate certificate.


Testing Your SSL Certificate

You can check your SSL using the following tools:

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