{"kind":"host","input":"earthlink.net","report":{"host":"earthlink.net","checkedAt":"2026-11-01T15:01:18.043Z","a":{"status":"found","values":["104.19.239.228","104.18.208.148"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6813:efe4","2606:4700::6812:d094"],"ttl":32,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.earthlink.net","a":{"status":"found","values":["104.19.239.228","104.18.208.148"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700::6812:d094","2606:4700::6813:efe4"],"ttl":207,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"earthlink.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6813:efe4","result":"answers","port":443},{"address":"2606:4700::6812:d094","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.earthlink.net has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700::6812:d094","result":"answers","port":443},{"address":"2606:4700::6813:efe4","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx01.earthlink-vadesecure.net","ipv6":false},{"host":"mx02.earthlink-vadesecure.net","ipv6":false},{"host":"mx03.earthlink-vadesecure.net","ipv6":false},{"host":"mx04.earthlink-vadesecure.net","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"carl.ns.cloudflare.com","ipv6":true},{"host":"rihana.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 403.","hops":[{"url":"https://earthlink.net/","address":"2606:4700::6813:efe4","status":403,"tls":"valid"}]},"receiptId":"7UT-l9qa4k","reused":true,"measuredAt":"2026-11-01T15:01:18.345Z"}