DNS Report: bit.edu.cn

Generated: 2026-08-10T11:07:38-05:00

72/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 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.
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.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5526 day(s) remaining.
WARNINGCertificate lifetime6/10Full points require at least 30 days remaining.
WARNINGHTTP security headers12/353 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
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 OK
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
183.243.192.31
AAAA
;; communications error to 69.64.44.20#53: timed out
CNAME
;; communications error to 69.64.44.20#53: timed out
MX
10 mailgw.bit.edu.cn.
TXT
"_globalsign-domain-verification=8D9hwWgSRt0iIoL9eoR5Ig2IgESpxHUajE4IbkSEFW"
"apple-domain-verification=VYWHcc47WZ6oOTGW"
"v=spf1 ip4:202.204.80.7 ip4:183.243.192.9 ip4:192.155.91.4 ip4:202.204.80.8 ip4:202.204.80.9 -all"
"MS=876FD70633FA0249D617094D974A4A9D865524CF"
"brevo-code:b1414e0a234265a2faa294058248ae06"
NS
dns1.bit.edu.cn.
dns.bit.edu.cn.
dns3.bit.edu.cn.
dns2.bit.edu.cn.
SOA
dns.bit.edu.cn. hostmaster.net.edu.cn. 2100001172 10800 900 604800 86400
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP