Demonstrate control over your domain by hosting a .txt file containing a random value at a predetermined location on your website. Once the file is created and placed on your site, DigiCert visits the specified URL to confirm the presence of your unique random value. Make sure to avoid some of the more Common mistakes: HTTP practical demonstration DCV method.
Before you can prevalidate a domain for TLS/SSL certificate validation, you must first submit its organization for prevalidation. Additionally, if you want the domain to be used for OV, EV, and/or Private SSL certificates, you must submit its organization for those matching validation types.
In your CertCentral account, in the left main menu, go to Certificates > Domains.
On the Domains page, click New Domain.
On the New Domain page, under Domain Details, enter the following domain information:
Under Validate This Domain For, check the validation types for which the domain must be validated.
Under Domain Control Validation (DCV) Method, select HTTP Practical Demonstration.
When you are finished, click Submit for Validation.
Create your .txt file:
Create the .well-known/pki-validation/ directory on your site.
For Windows-based servers, the .well-known folder must be created via command line (mkdir .well-known).
Place the fileauth.txt file on your site under .well-known/pki-validation.
The URL should look something like this:
Verify the HTTP token