{"kind":"host","input":"wiki.univ-paris-diderot.fr","report":{"host":"wiki.univ-paris-diderot.fr","checkedAt":"2026-11-01T01:22:39.290Z","a":{"status":"found","values":["81.194.22.230"],"ttl":300,"via":"Cloudflare","cname":["rp3.dsi.univ-paris-diderot.fr"]},"aaaa":{"status":"found","values":["2001:660:3301:8008::230"],"ttl":300,"via":"Cloudflare","cname":["rp3.dsi.univ-paris-diderot.fr"]},"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":"wiki.univ-paris-diderot.fr has an AAAA record and answers on it.","addresses":[{"address":"2001:660:3301:8008::230","result":"answers","port":443}]},{"key":"mail","label":"Mail servers (MX) have IPv6","status":"partial","detail":"At least one mail server has no AAAA record (2 of 3 checked do).","hosts":[{"host":"potemkin.univ-paris7.fr","ipv6":true},{"host":"shiva.jussieu.fr","ipv6":false},{"host":"korolev.univ-paris7.fr","ipv6":true}]},{"key":"dns","label":"Nameservers have IPv6","status":"pass","detail":"2 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.","hosts":[{"host":"potemkin.univ-paris7.fr","ipv6":true},{"host":"shiva.jussieu.fr","ipv6":false},{"host":"korolev.univ-paris7.fr","ipv6":true}]}]},"https":{"status":"fail","problem":"certificate","summary":"The certificate served over IPv6 at 2001:660:3301:8008::230 isn't valid for wiki.univ-paris-diderot.fr: UNABLE_TO_VERIFY_LEAF_SIGNATURE.","hops":[{"url":"https://wiki.univ-paris-diderot.fr/","address":"2001:660:3301:8008::230","tls":"UNABLE_TO_VERIFY_LEAF_SIGNATURE"}]},"receiptId":"qEtCCu2-GD","reused":true,"measuredAt":"2026-11-01T01:22:40.070Z"}