{"kind":"host","input":"comcasta.com","report":{"host":"comcasta.com","checkedAt":"2026-11-14T01:31:31.044Z","a":{"status":"found","values":["217.154.97.77"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:ba0:2ea:1100::1"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.comcasta.com","a":{"status":"found","values":["217.154.97.77"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2001:ba0:2ea:1100::1"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"comcasta.com has an AAAA record and answers on it.","addresses":[{"address":"2001:ba0:2ea:1100::1","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.comcasta.com has an AAAA record and answers on it.","addresses":[{"address":"2001:ba0:2ea:1100::1","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record."},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"1 of 1 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"ns1.siglab.live","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 404.","hops":[{"url":"https://comcasta.com/","address":"2001:ba0:2ea:1100::1","status":404,"tls":"valid"}]},"receiptId":"pcf8DUO2c2","reused":true,"measuredAt":"2026-11-14T01:31:31.584Z"}