{"kind":"host","input":"slack.com","report":{"host":"slack.com","checkedAt":"2026-10-31T15:03:52.234Z","a":{"status":"found","values":["34.203.97.10","34.204.109.226","34.205.195.66","34.225.62.185","34.231.24.224","52.73.140.59","54.92.199.186","54.147.59.169","54.163.235.119","54.225.153.205","3.95.117.96","3.210.88.6","34.193.255.5","34.196.46.202","34.202.253.6"],"ttl":58,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.slack.com","a":{"status":"found","values":["54.225.153.205","3.95.117.96","3.210.88.6","34.193.255.5","34.196.46.202","34.202.253.6","34.203.97.10","34.204.109.226","34.205.195.66","34.225.62.185","34.231.24.224","52.73.140.59","54.92.199.186","54.147.59.169","54.163.235.119"],"ttl":6,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"slack.com has no AAAA record."},{"key":"www","label":"www over IPv6","status":"fail","detail":"www.slack.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"aspmx.l.google.com","ipv6":true},{"host":"alt1.aspmx.l.google.com","ipv6":true},{"host":"alt2.aspmx.l.google.com","ipv6":true},{"host":"aspmx2.googlemail.com","ipv6":true},{"host":"aspmx3.googlemail.com","ipv6":true}]},{"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":"ns-166.awsdns-20.com","ipv6":true},{"host":"ns-606.awsdns-11.net","ipv6":true},{"host":"ns-1493.awsdns-58.org","ipv6":true},{"host":"ns-1901.awsdns-45.co.uk","ipv6":true}]}]},"receiptId":"IpFoV3QSp1"}