Add a domain, authorize the domain for certificates, and use HTTP practical demonstration as the validation method

In your CertCentral account, in the left main menu, go to Certificates > Domains.

On the Domains page, select New Domain.

On the New Domain page, under Domain Details, enter the following domain information:

• Domain Name
  Enter the domain name the certificates will secure.
• Organization
  In the dropdown, select the organization you want to assign the domain to.

Under Domain Control Validation (DCV) Method, select HTTP Practical Demonstration.

When you are finished, click Submit for Validation.

Create your .txt file:

1. Under User Actions, in the Your unique verification token box, copy your verification token.
   Note: The unique verification token expires after 30 days. To generate a new token, click the Generate New Token link.
2. Open a text editor (such as Notepad) and paste in Your unique verification token.
3. Save the .txt file under this name: fileauth.txt.

Create the .well-known/pki-validation/ directory on your site.

Place the fileauth.txt file on your site under .well-known/pki-validation.

The URL should look something like this:

http://[yourdomain]/.well-known/pki-validation/fileauth.txt

Verify the HTTP token

1. In your CertCentral account, in the left main menu, go to Certificates > Domains.
2. On the Domains page, in the Domain Name column, click domain link.
3. On the domain details page (e.g., example.com), at the bottom of the page, click Check HTTP Token.