DNS Report: keio.ac.jp

Generated: 2026-08-09T02:40:53-05:00

26/100

Diagnostics

StatusCheckPointsDetails
ERRORIPv4 (A)0/300 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/206 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
ERRORDNS propagation0/10Agreement between public resolvers.
OKMX records20/201 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
ERRORValid TLS certificate0/55No valid certificate was retrieved.
ERRORCertificate lifetime0/10Full points require at least 30 days remaining.
ERRORHTTP security headers0/350 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
ERRORIPv4 diversity0/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
ERRORDNS resolution0/40At least one address family must resolve.
ERRORHTTP response0/40No successful HTTP response.
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
AAAA
CNAME
MX
0 vmx2.m0.keio.ac.jp.
TXT
"v=spf1 ip4:131.113.0.0/16 ip4:133.27.0.0/16 ip6:2001:df0:eb::/48 ip6:2001:df2:c900::/48 ~all"
"docusign=30ff29ed-f927-4b33-a1ed-a85f6e6e3e9f"
"0FACCAAEEFFC738295FE129F28D029AD"
NS
a5-66.akam.net.
a26-67.akam.net.
a1-123.akam.net.
a3-64.akam.net.
a4-65.akam.net.
a14-66.akam.net.
SOA
nsm2.keio.ac.jp. postmaster.keio.ac.jp. 2026072701 10800 3600 1209600 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP