DNS Report: dffl.com.cn

Generated: 2026-08-09T18:41:42-05:00

57/100

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 records20/201 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 certificate55/55158 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.
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
223.76.216.216
AAAA
CNAME
MX
10 smtp.dffl.com.cn.
TXT
"v=spf1 a mx ip4:113.56.0.0/21 ip4:119.36.84.248 ip4:219.138.90.85 -all"
NS
dns-ch2.xinnet.com.
dns-ch.xinnet.com.
SOA
ns11.xincache.com. ns12.xincache.com. 1761986256 3600 180 1209600 180
CAA
DS
DNSKEY
RRSIG
NSEC
\000.dffl.com.cn. A NS SOA MX TXT AAAA SRV RRSIG NSEC DNSKEY SVCB HTTPS CAA
NSEC3
SRV
NAPTR
TLSA
SSHFP