system.na13.netsuite.com is a subdomain used by Oracle's NetSuite, a cloud-based ERP and business management platform. If you're a NetSuite customer, this is the login page for your account in the NA13 data center. The site is run by Oracle, a publicly traded company with a long track record, so the question isn't really "is system.na13.netsuite.com a scam"—it's whether the connection is secure. On that front, everything checks out: the site uses modern encryption, sets browser protections against clickjacking and other attacks, and enforces HTTPS. It also publishes a legal entity disclosure and links to Oracle's privacy policy and terms. For a SaaS login portal, that's exactly what you want to see. There's no contact form on this page, but that's normal for a login screen—support is handled through other channels. If you're a NetSuite user, you can safely log in here. Just make sure you're not being tricked by a phishing lookalike, because the real site is legitimate.