If your organization, or one that forwarded you an email, uses DuoCircle's PhishProtection service for Advanced Threat Defense, you may notice URLs in emails pointing to this domain.
Advanced Threat Defense evaluates websites for safety, ensuring they are free from malware. If a site is safe, your browser will be redirected to the intended destination. If a site is identified as malicious, Advanced Threat Defense will block access to protect users.
For more details, visit PhishProtection.com