To complete domain control validation for yourdomain.com, place the verificationtoken.txt file on the exact domain you want validated; the one we generate the URL for. We won’t look at a different domain or subdomain to find our random token. We only look at the domain you want validated—the one specified in your certificate order.
For example, if you need [yourdomain].com validated so that you can get an SSL/TLS certificate for it, we generate a URL for this domain – http://[yourdomain.com]/.well-known/pki-validation/verificationtoken.txt. Don’t place the verificationtoken.txt file on sub.[yourdomain].com or modify the URL and place it on [yourotherdomain].com – it won’t work. We won't look for the verificationtoken.txt file on these domains – only on [yourdomain].com.
If you want us to validate www.[yourdomain].com and [yourdomain].com, place the verificationtoken.txt file on [yourdomain].com. This will validate both [yourdomain].com and www.[yourdomain].com. We won’t look at www.yourdomain.com to find the verificationtoken.txt file.
If you received a free base domain SAN on your SSL/TLS certificate, make sure to place the verificationtoken.txt file on the base domain. We need to validate the domain on the SSL/TLS certificate order.
DigiCert is the world's leading provider of scalable TLS/SSL, IoT and PKI solutions for identity and encryption. The most innovative companies, including 89% of the Fortune 500 and 97 of the 100 top global banks, choose DigiCert for its expertise in identity and encryption for web servers and Internet of Things devices. DigiCert supports TLS and other digital certificates for PKI deployments at any scale through its certificate lifecycle management solution, CertCentral®. The company is recognized for its enterprise-grade certificate management platform, fast and knowledgeable customer support, and market-leading security solutions. For the latest DigiCert news and updates, visit digicert.com or follow @digicert.
©2020 DigiCert, Inc. All rights reserved. DigiCert, its logo and CertCentral are registered trademarks of DigiCert, Inc. Norton and the Checkmark Logo are trademarks of NortonLifeLock Inc. used under license. Other names may be trademarks of their respective owners.