{"kind":"host","input":"cheminformaticsservices.com","report":{"host":"cheminformaticsservices.com","checkedAt":"2026-11-15T08:17:11.650Z","a":{"status":"found","values":["104.21.94.72","172.67.220.143"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3035::6815:5e48","2606:4700:3037::ac43:dc8f"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack","www":{"host":"www.cheminformaticsservices.com","a":{"status":"found","values":["172.67.220.143","104.21.94.72"],"ttl":300,"via":"Cloudflare","cname":[]},"aaaa":{"status":"found","values":["2606:4700:3037::ac43:dc8f","2606:4700:3035::6815:5e48"],"ttl":300,"via":"Cloudflare","cname":[]},"verdict":"dual-stack"}},"readiness":{"grade":"B","summary":"Works over IPv6, with one gap: its mail servers lack IPv6.","reachabilityTested":true,"checks":[{"key":"web","label":"Website over IPv6","status":"pass","detail":"cheminformaticsservices.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3035::6815:5e48","result":"answers","port":443},{"address":"2606:4700:3037::ac43:dc8f","result":"answers","port":443}]},{"key":"www","label":"www over IPv6","status":"pass","detail":"www.cheminformaticsservices.com has 2 IPv6 addresses and answers on every one we tested.","addresses":[{"address":"2606:4700:3037::ac43:dc8f","result":"answers","port":443},{"address":"2606:4700:3035::6815:5e48","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"fail","detail":"None of the mail servers has an AAAA record.","hosts":[{"host":"mx00.ionos.es","ipv6":false},{"host":"mx01.ionos.es","ipv6":false}]},{"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":"deborah.ns.cloudflare.com","ipv6":true},{"host":"marek.ns.cloudflare.com","ipv6":true}]}]},"https":{"status":"pass","summary":"Loads over IPv6 with a valid certificate: HTTP 200.","hops":[{"url":"https://cheminformaticsservices.com/","address":"2606:4700:3035::6815:5e48","status":200,"tls":"valid"}]},"receiptId":"zLNBW9KUp6","reused":true,"measuredAt":"2026-11-15T08:17:12.097Z"}