{"kind":"host","input":"correlation.tools","report":{"host":"correlation.tools","checkedAt":"2026-11-06T03:51:03.451Z","a":{"status":"found","values":["5.161.47.86","5.78.156.59","76.223.91.20","5.161.230.87","46.62.237.138","195.201.128.179"],"ttl":30,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a05:d014:179b:c403:e36f:9187:c810:afa1","2a05:d014:179b:c403:7ca2:c788:41b0:7d26","2a05:d018:1d22:801:a216:a799:8c87:df21","2a05:d014:179b:c402:796a:5979:8cae:ea4","2a05:d014:179b:c400:5131:66d1:dcfb:6ae9","2a05:d014:179b:c400:a327:40ee:24cc:6180","2600:1f1c:6db:8801:5fb4:e525:dd88:52b2","2406:da1e:214:c901:3a5:448f:b7b7:82e7"],"ttl":30,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.correlation.tools","a":{"status":"found","values":["5.161.47.86","5.78.156.59","76.223.91.20","5.161.230.87","46.62.237.138","195.201.128.179"],"ttl":30,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2a05:d014:179b:c403:e36f:9187:c810:afa1","2a05:d014:179b:c403:7ca2:c788:41b0:7d26","2a05:d018:1d22:801:a216:a799:8c87:df21","2a05:d014:179b:c402:796a:5979:8cae:ea4","2a05:d014:179b:c400:5131:66d1:dcfb:6ae9","2a05:d014:179b:c400:a327:40ee:24cc:6180","2600:1f1c:6db:8801:5fb4:e525:dd88:52b2","2406:da1e:214:c901:3a5:448f:b7b7:82e7"],"ttl":30,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"C","summary":"Works over IPv6, with gaps: one of its IPv6 addresses doesn't answer; www doesn't fully work over IPv6; its nameservers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"partial","detail":"1 of 4 IPv6 addresses for correlation.tools don't answer. Visitors sent to that one wait for a timeout before falling back.","addresses":[{"address":"2a05:d014:179b:c403:e36f:9187:c810:afa1","result":"no answer"},{"address":"2a05:d014:179b:c403:7ca2:c788:41b0:7d26","result":"answers","port":443},{"address":"2a05:d018:1d22:801:a216:a799:8c87:df21","result":"answers","port":443},{"address":"2a05:d014:179b:c402:796a:5979:8cae:ea4","result":"answers","port":443},{"address":"2a05:d014:179b:c400:5131:66d1:dcfb:6ae9","result":"not tested"},{"address":"2a05:d014:179b:c400:a327:40ee:24cc:6180","result":"not tested"},{"address":"2600:1f1c:6db:8801:5fb4:e525:dd88:52b2","result":"not tested"},{"address":"2406:da1e:214:c901:3a5:448f:b7b7:82e7","result":"not tested"}]},{"key":"www","label":"www over IPv6","status":"partial","detail":"1 of 4 IPv6 addresses for www.correlation.tools don't answer. Visitors sent to that one wait for a timeout before falling back.","addresses":[{"address":"2a05:d014:179b:c403:e36f:9187:c810:afa1","result":"no answer"},{"address":"2a05:d014:179b:c403:7ca2:c788:41b0:7d26","result":"answers","port":443},{"address":"2a05:d018:1d22:801:a216:a799:8c87:df21","result":"answers","port":443},{"address":"2a05:d014:179b:c402:796a:5979:8cae:ea4","result":"answers","port":443},{"address":"2a05:d014:179b:c400:5131:66d1:dcfb:6ae9","result":"not tested"},{"address":"2a05:d014:179b:c400:a327:40ee:24cc:6180","result":"not tested"},{"address":"2600:1f1c:6db:8801:5fb4:e525:dd88:52b2","result":"not tested"},{"address":"2406:da1e:214:c901:3a5:448f:b7b7:82e7","result":"not tested"}]},{"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":"fail","detail":"No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.","hosts":[{"host":"ns1.dns-redirect.com","ipv6":false},{"host":"ns2.dns-redirect.com","ipv6":false}]}]},"https":{"status":"unknown","summary":"correlation.tools didn't complete an HTTPS request over IPv6 (ECONNREFUSED).","hops":[{"url":"https://correlation.tools/","address":"2a05:d014:179b:c403:e36f:9187:c810:afa1","note":"ECONNREFUSED"}]},"receiptId":"DYaWH4yq3V","reused":true,"measuredAt":"2026-11-06T03:51:03.935Z"}