Remote users IPV6 address shows as localhost

Only for DNS (grey mode). (Technically I think I have orange mode for www.intfiction.org, but it will be redirected to the apex intfiction.org before it hits my server.) I have the following in my app.yml, though I didn’t think either part would be relevant:

  after_web_config:
    - replace:
        filename: /etc/nginx/nginx.conf
        from: /sendfile.+on;/
        to: |
          server_names_hash_bucket_size 64;
          sendfile on;
    - file:
        path: /etc/nginx/conf.d/discourse_redirect_1.conf
        contents: |
          server {
            listen 80;
            server_name www.intfiction.org;
            return 301 $scheme://intfiction.org$request_uri;
          }