{"kind":"host","input":"verisign.com","report":{"host":"verisign.com","checkedAt":"2026-10-31T09:13:59.589Z","a":{"status":"found","values":["69.58.187.40","209.131.162.145"],"ttl":30,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2620:74:14:3000::40","2620:74:10:2900::45"],"ttl":36,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.verisign.com","a":{"status":"found","values":["3.173.23.153","3.173.21.153","3.173.22.153"],"ttl":55,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2600:9000:2715:0:9700:c8:4:9d02","2600:9000:2716:0:9700:c8:4:9d02","2600:9000:2717:0:9700:c8:4:9d02"],"ttl":60,"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":"verisign.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2620:74:14:3000::40","result":"answers","port":443},{"address":"2620:74:10:2900::45","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.verisign.com has 3 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:9000:2715:0:9700:c8:4:9d02","result":"answers","port":443},{"address":"2600:9000:2716:0:9700:c8:4:9d02","result":"answers","port":443},{"address":"2600:9000:2717:0:9700:c8:4:9d02","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":"mail1.verisign.com","ipv6":false},{"host":"mail2.verisign.com","ipv6":false},{"host":"mail3.verisign.com","ipv6":false},{"host":"mail4.verisign.com","ipv6":false},{"host":"mail5.verisign.com","ipv6":false},{"host":"mail6.verisign.com","ipv6":false}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"av1.nstld.com","ipv6":true},{"host":"av2.nstld.com","ipv6":true},{"host":"av3.nstld.com","ipv6":true},{"host":"av4.nstld.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.","hops":[{"url":"https://verisign.com/","address":"2620:74:14:3000::40","status":301,"tls":"valid"},{"url":"https://www.verisign.com/","address":"2600:9000:2715:0:9700:c8:4:9d02","status":200,"tls":"valid"}]},"receiptId":"27FjTnLXfC"}