DNS Report: jlu.edu.cn

Generated: 2026-08-10T13:17:20-05:00

65/100

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 records20/202 MX record(s).
OKSPF25/25SPF policy published.
ERRORDMARC0/25DMARC policy not found.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/55128 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers4/351 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: ws16-83.jlu.edu.cn
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA 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
202.198.16.83
AAAA
CNAME
MX
1 mx-jlu-edu-cn.icoremail.net.
10 mailgw.jlu.edu.cn.
TXT
"v=spf1 ip4:202.198.16.76 ip4:202.198.16.89 ip4:202.198.16.77 ip4:202.198.16.78 ip4:202.198.16.79   include:spf.icoremail.net -all"
"MS=06948F9093B066E5250CD06DD49E5AAAC1EAC512"
NS
dns2.jlu.edu.cn.
dns.jlu.edu.cn.
SOA
dns.jlu.edu.cn. master.jlu.edu.cn. 2026081888 720 32400 604800 86400
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP