upstream loadbalancer {
    server doh.hnshosting.au:443 weight=1;
    server easyhandshake.com:8053 weight=1;
    server doh.hnsdns.com:443 weight=1;
    server hs.dnssec.dev:443 weight=1;
    server hnsns.net:443 weight=1;
}

server {
    listen 80;
    server_name your_domain.com;

    location / {
        proxy_pass http://loadbalancer;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}