If you're checking whether nnlm.gov is safe, the short answer is yes. This is the homepage of the Network of the National Library of Medicine, a program run under the U.S. National Library of Medicine (part of NIH). The domain has been online since 1999, and that kind of longevity doesn't happen by accident — especially on a .gov domain, which only verified government entities can register.
Our analysis found strong security protections, clean blacklist history, and a transparent about page with contact info and staff bios. The only thing missing is a separate privacy policy and terms of service page, but for a government site that doesn't sell products or collect payment, that's less of a concern than it would be for a commercial business. Most established government health sites operate under federal privacy law rather than posting their own boilerplate policy.
Is nnlm.gov fake? No. The registration through get.gov, DNSSEC, and 25 years of continuous web archive history all confirm this belongs to the National Library of Medicine. If you're looking for reliable health and library science information, this site is legitimate. The only practical warning is the domain expires in about a month, but renewal for government domains is routine and the site shows no signs of being abandoned.