DNS Report: postech.ac.kr

Generated: 2026-08-10T13:00:37-05:00

79/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/202 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.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/201 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/55139 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: kwjung.postech.ac.kr
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/1.1 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
141.223.5.166
AAAA
CNAME
MX
5 sniper.postech.ac.kr.
TXT
"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkDRTHKiQcMbP2pTDSIMCIg+SdysVhFzLXfGAP6N4y5i8lgRAuPN/dPVH2FjWgaaUEMn6vluhLrJWQ9COcOR3kNHTnK4yTOP5+5exW4bsdgWnBzYHC7/UtHIyZlz9URfjzt2oUOUAqkNj85junvMNQA/dx4lvfltFg5ZF5/q4qWQIDAQAB"
"I/EfFRLSDlknsWzmYM7q5v4wjC+aWfPJ93g778mP1eT0CfBmeNo/N/rnoSsq/ncTgy+rBHHi98J45+pk3RA83g=="
"v=spf1 ip4:141.223.1.111 ip4:141.223.1.114 ip4:141.223.1.254 ip4:141.223.1.116 ip4:141.223.1.117 ip4:141.223.1.124 ip4:141.223.1.125 ip4:141.223.5.171 include:spf.protection.outlook.com include:mail.stibee.com include:_spf.google.com ~all"
"_31oz9pq9kfzn2exu282dnup1hp8asn5"
NS
ns.postech.ac.kr.
ns2.postech.ac.kr.
SOA
ns.postech.ac.kr. domain.postech.ac.kr. 2023072003 7200 3600 604800 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP