DNS Report: tsinghua.edu.cn

Generated: 2026-08-08T21:09:32-05:00

30/100

Diagnostics

StatusCheckPointsDetails
ERRORIPv4 (A)0/300 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.
ERRORDNS propagation0/10Agreement between public resolvers.
OKMX records20/202 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.
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
10 mta0.tsinghua.edu.cn.
10 mta1.tsinghua.edu.cn.
TXT
"MS=03F900F88871BE9C77AB70367F39E186BD816A72"
"v=spf1 redirect=spf.tsinghua.edu.cn"
"adobe-idp-site-verification=3e2296d0c59d5fda8f42086830f3c085e951b94ec9302e74b41637e3311481d9"
NS
dns2.tsinghua.edu.cn.
dns.tsinghua.edu.cn.
dns.edu.cn.
dns2.edu.cn.
SOA
dns2.edu.cn. szhu.tsinghua.edu.cn. 2099126435 3600 900 604800 600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP