{"kind":"host","input":"house.gov","report":{"host":"house.gov","checkedAt":"2026-11-01T14:56:47.764Z","a":{"status":"found","values":["3.33.159.71","15.197.146.213"],"ttl":1658,"via":"Cloudflare","cname":[]},"aaaa":{"status":"absent","via":"Cloudflare","cname":[]},"verdict":"ipv4-only","www":{"host":"www.house.gov","a":{"status":"found","values":["104.81.166.177"],"ttl":20,"via":"Cloudflare","cname":["wwwcl.house.gov","wc.house.gov.edgekey.net","e4776.dscb.akamaiedge.net"]},"aaaa":{"status":"found","values":["2600:1408:c400:f95::12a8","2600:1408:c400:f80::12a8"],"ttl":20,"via":"Cloudflare","cname":["wwwcl.house.gov","wc.house.gov.edgekey.net","e4776.dscb.akamaiedge.net"]},"verdict":"dual-stack"}},"readiness":{"grade":"D","summary":"The website has no IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"fail","detail":"house.gov has no AAAA record."},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.house.gov has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2600:1408:c400:f95::12a8","result":"answers","port":443},{"address":"2600:1408:c400:f80::12a8","result":"answers","port":443}]},{"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":"4 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"oxygen.house.gov","ipv6":false},{"host":"oxygen2.house.gov","ipv6":false},{"host":"pdns109.ultradns.biz","ipv6":true},{"host":"pdns109.ultradns.com","ipv6":true},{"host":"pdns109.ultradns.net","ipv6":true},{"host":"pdns109.ultradns.org","ipv6":true}]}]},"receiptId":"VJJmt7NjUc","reused":true,"measuredAt":"2026-11-01T14:56:48.015Z"}