{"kind":"host","input":"ftp.wunderground.com","report":{"host":"ftp.wunderground.com","checkedAt":"2026-11-01T14:55:03.081Z","a":{"status":"found","values":["35.167.145.227"],"ttl":60,"via":"Cloudflare","cname":["ftp-wxu.weather-perf.akadns.net"]},"aaaa":{"status":"absent","via":"Cloudflare","cname":["ftp-wxu.weather-perf.akadns.net"]},"verdict":"ipv4-only"},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"ftp.wunderground.com has no AAAA record."},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record."},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"a14-64.akam.net","ipv6":true},{"host":"a11-66.akam.net","ipv6":true},{"host":"a10-65.akam.net","ipv6":true},{"host":"a1-70.akam.net","ipv6":true},{"host":"a13-67.akam.net","ipv6":true},{"host":"a24-65.akam.net","ipv6":true}]}]},"receiptId":"O_IKPik-v2","reused":true,"measuredAt":"2026-11-01T14:55:03.118Z"}