isaacs

$ host -t any a.sni.fastly.net | awk '{print $4}' | egrep '^[0-9]' | while read ip; do echo -en "$ip\t"; curl -k https://$ip/archy -H host:registry.npmjs.org -s -H accept:application/json | shasum ; done | sort
103.245.222.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
185.31.16.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
185.31.17.162	3255611d90c2b1fdcffd4114e9ec6f2bbdc35cd5  -
185.31.18.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
185.31.19.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
199.27.72.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
199.27.73.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
199.27.74.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -
199.27.75.162	bf5d17022bdd2c5cba80bc163798ea80665de1e3  -