{"kind":"host","input":"solidsystems.courses","report":{"host":"solidsystems.courses","checkedAt":"2026-11-13T22:03:24.404Z","a":{"status":"found","values":["104.21.28.90","172.67.145.51"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3033::6815:1c5a","2606:4700:3036::ac43:9133"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.solidsystems.courses","a":{"status":"found","values":["172.67.145.51","104.21.28.90"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3036::ac43:9133","2606:4700:3033::6815:1c5a"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"A","summary":"Website, mail and DNS all work over IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"solidsystems.courses has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3033::6815:1c5a","result":"answers","port":443},{"address":"2606:4700:3036::ac43:9133","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.solidsystems.courses has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3036::ac43:9133","result":"answers","port":443},{"address":"2606:4700:3033::6815:1c5a","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"pass","detail":"Every mail server has an AAAA record.","hosts":[{"host":"solidsystems-courses.mail.protection.outlook.com","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"dolly.ns.cloudflare.com","ipv6":true},{"host":"josh.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"fail","problem":"redirect-no-ipv6","summary":"Redirects to argorant.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.","hops":[{"url":"https://solidsystems.courses/","address":"2606:4700:3033::6815:1c5a","status":301,"tls":"valid"},{"url":"https://argorant.com/","note":"redirects to argorant.com, which has no IPv6 address"}]},"receiptId":"-ClGyL8RCx","reused":true,"measuredAt":"2026-11-13T22:03:24.581Z"}