DNS Report: fudan.edu.cn

Generated: 2026-08-09T06:43:43-05:00

73/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
OKIPv6 (AAAA)10/101 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/203 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 certificate55/55244 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
ERRORHTTP security headers0/350 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
ERRORHTTP response0/40HTTP/1.1 403 Forbidden
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
175.186.248.54
AAAA
;; communications error to 69.64.44.20#53: timed out
240c:c701:1:3513::54
CNAME
MX
1 mx-fudan-edu-cn.icoremail.net.
10 mailrelay1.fudan.edu.cn.
10 mailrelay2.fudan.edu.cn.
TXT
"v=spf1 ip4:202.120.224.0/24 ip4:61.129.42.0/24 ip4:202.120.241.1/29 ip4:202.120.242.1/29 ip4:202.120.243.1/29 ip4:202.120.244.1/29 ip4:202.120.246.1/29 ip6:2001:da8:8001::/48 include:spf.icoremail.net ~all"
NS
ns4.fudan.edu.cn.
ns1.fudan.edu.cn.
ns2.fudan.edu.cn.
ns3.fudan.edu.cn.
SOA
ns.fudan.edu.cn. root.ns.fudan.edu.cn. 2000005207 18000 14400 3600000 86400
CAA
;; communications error to 69.64.44.20#53: timed out
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP