How can I complete the domain control validation (DCV) for my SSL certificate?

Before a certificate can be issued, the certificate applicant needs to confirm the domain ownership rights. With the implementation of the new Account Panel, you have an opportunity to select several methods of domain control validation (DCV) during the certificate activation.

There are three DCV methods:

Email validation. The most ordinary and well-known option to confirm the domain ownership. During the certificate activation, you will need to select the email address to which an approval email will be sent. Due to regulations of Certificate Authorities, it is only possible to use either a domain whois record or one of the following domain-related generic emails to receive an approver email:,,, or . After the enrollment process is completed on our site, you will receive an email from the Certificate Authority to the selected email address.


If the whois record is not showing in the list of possible emails, it means that the Certificate Authority failed to retrieve the whois record for your domain (This is a quite common case for domains with such TLDs as .ca, .br, .uk, .au, etc.) from your CSR code. In this case, if you want to validate the certificate using the email from whois, you can choose any email from the list for activation. After the activation is completed, please contact our support team with a request to resend the approver email to an address from whois.

Once the activation is completed, email will be sent to you. To confirm the domain ownership rights for your certificate, you need to copy the validation code from the approval email, follow the link in it and paste the validation code into the corresponding field.

Paste the code from the email and hit Next.

That's it! The certificate will be emailed to you in a few minutes after the DCV is completed.

If you do not receive approval email to your mailbox, you can always retrieve it by clicking Resend Email.


HTTP-based validation. It involves uploading of the activation file to the hosting server.

The validation file is a .txt file with the name containing numbers and letters, e.g. AN2D4C5H7F01823KRIDHJ.txt. When uploading the file, please do not change the file name or its content.

The file can be downloaded any time from the Certificate Details page in your Namecheap account.


Right after the enrollment process is completed and order is submitted, you will be brought to the Certificate Management page with the option to download the validation file:


After you have downloaded the validation file, it is necessary to upload it to your hosting server/panel. The file should be uploaded into the .well-known folder and pki-validation subfolder of the document root directory for the domain name.

As a result, the validation file should be accessible via the requested path for the validation: , where ‘’ is the domain name in the certificate and ‘AN2D4C5H7F01823KRIDHJ.txt’ should be the exact name of the validation file downloaded from the Namecheap account without changes.

You can check if the validation file is accessible in the browser by pasting the validation link into the URL and accessing it. In most cases, if a simple text line is shown on the screen, the validation file is accessible.

Once the file is uploaded and accessible externally via the following URL, please click Save Changes/Retry Alt DCV. This will force DCV check on Certificate Authority side.


Note: If you are activating your certificate for a subdomain, you need to upload the text into the domain main directory; if the file is uploaded to the directory of the subdomain - it should get verified as well. So basically, the file should be accessible either via http(s):// or via http(s):// If you are activating a Multi-domain certificate for subdomains, the validation file should be placed into the Document root directory of the each corresponding domain. We recommend having it uploaded for each subdomain as well.

Note: If you have activated the certificate with indicated as FQDN in your CSR code, please make sure that the file is available via . In this case, is considered to be under your control as well.

If your CSR code contains as FQDN, please make sure that the file is available via the link .
Content of the file shouldn't be changed in any way, as Comodo (now Sectigo) validation system is case sensitive.

DNS-based validation. For this validation method you need to create a certain CNAME record in the DNS settings of your domain.


The values for CNAME record will be also available in your account after the order is submitted for activation to the CA.


The values for the CNAME record will be provided to you.


NOTE! Some DNS systems(Namecheap system as well) have such peculiarity that they add domain name automatically to the values submitted during record creation. Please make sure that your domain name is not duplicated in the values: if the domain is using Namecheap Basic nameservers or PremiumDNS remove the "" part of the provided Host value before adding it to the validation record for the domain. Copy the Host and Target values and paste them in the corresponding fields in the account with your DNS provider. Set the minimum possible TTL value.

NOTE! Please keep in mind that if you are activating a Multi-domain certificate, the DNS record should be placed for every domain/subdomain included in the certificate, replacing the domain name in the field 'Host' with the corresponding domain/subdomain. Other values remain the same. Once the correct values are set up, please click Save Changes/Retry Alt DCV in order to speed up the process of domain control validation.
However, if a single-domain certificate is activated for a subdomain, the DNS record needs to be set for the bare domain directly.

Changing DCV methods

If you chose a particular DCV method, submitted the order, but suddenly changed your mind about the way of validation, you can change it in your account for the certificates that are awaiting validation. The option can be found at the certificate management page for a needed SSL. Please click this button if you wish to change your DCV method.


You will be switched to the next page where you will be able to change DCV method to the preferable one.

Choose the desired method and perform the required steps to complete the DCV.

Note: To check the progress status, switch the validation method and take action to expedite your Certificate issue, use the convenient SSL Validation Tool.

Note! If you have an OV or an EV certificate, your order will undergo a business validation. After you complete the DCV, expect the email from Comodo (now Sectigo) with the further instructions.


157893 times


We welcome your comments, questions, corrections and additional information relating to this article. Your comments may take some time to appear. Please be aware that off-topic comments will be deleted.

If you need specific help with your account, feel free to contact our Support Team. Thank you.

Need help? We're always here for you.

× Close