traces.orgは安全ですか？

I don't know why this got a lower grade of yellow-green, so am trying to tell what it is on this site. There is no malware, no viruses, no redirects, or anything that can be harmful to someone's computer. I find this to be a useful site - from their webpage it is "A non-profit educational organization created to gather, preserve and present stories of people from the Midwest and Germany or Austria who encountered each other during World War IIMany of these stories have lain beneath the dust left in the wake of a World War most never thought touched the American Heartland. TRACES brushes away that dust, unearthing an amazing legacy. As we learn about these stories, may we rise above–and eventually defeat–the prejudices, fears and conflicts that otherwise demean and destroy us."