I also noticed that the links are http:// and not to https:// which might be intentionally so, but all your pages will redirect to https:// so should we not just make them https:// since users without https:// capabilities cannot access them anyway.
Hello Manabu, thank you for these questions and thank you for attending the LOINC Conference.
The URIs you indicate are intended as unique identifiers rather than resolvable web resources. However, we do realize this is confusing and will be working to create individual pages for each property value. In the interim we may just redirect them to our https://loinc.org/fhir information page.
As a developer myself, I’m not sure why CodeSystems URIs are indicated with http rather than https. I’m a firm believer, as I assume you are, in “https everywhere.” If you look this list ( https://www.hl7.org/fhir/terminologies-systems.html ) of terminology URIs, ‘http://’ is the common practice for an identifier.