DNS Report: douban.com

Generated: 2026-08-08T19:43:16-05:00

69/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/303 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 records20/203 MX record(s).
OKSPF25/25SPF policy published.
ERRORDMARC0/25DMARC policy not found.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5577 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
120.53.130.158
140.143.177.206
81.70.124.99
AAAA
CNAME
MX
30 mx3.feishu.cn.
10 mx1.feishu.cn.
20 mx2.feishu.cn.
TXT
"_7taq71qhdd4d8aex977o81h07frjhgl"
"v=spf1 include:feishu-spf.mail.douban.com ~all"
NS
ns4.dnsv4.com.
ns3.dnsv4.com.
SOA
ns3.dnsv4.com. enterprise2dnsadmin.dnspod.com. 1784513585 3600 180 1209600 180
CAA
DS
DNSKEY
RRSIG
NSEC
\000.douban.com. A NS SOA MX TXT AAAA SRV RRSIG NSEC DNSKEY SVCB HTTPS CAA
NSEC3
SRV
NAPTR
TLSA
SSHFP