PubMed (pubmed.ncbi.nlm.nih.gov) is a well-known database of biomedical citations run by the National Library of Medicine, part of the U.S. government. Unlike commercial health sites, it doesn't sell products or collect payments—it’s a free research tool. For that reason, some signals that matter for e-commerce, like prominently displayed contact info or a privacy policy on the homepage, aren’t a mark against it. Government websites operate under different standards, and this one meets them: strong encryption, DNSSEC, and a .gov domain that confirms official ownership. If you’re wondering whether PubMed is a scam, the answer is no—it’s as legitimate as a .gov site gets. Researchers, students, and healthcare professionals rely on it daily. The only thing to remember is that PubMed indexes citations, not the full texts of every article, so you may need to access content through your institution or publisher links. Overall, is pubmed.ncbi.nlm.nih.gov safe? Absolutely—it’s one of the most authoritative sources in medicine.