DNS Report: centos.org

Generated: 2026-08-08T19:28:30-05:00

80/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/303 IPv4 address(es) detected.
OKIPv6 (AAAA)10/103 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.
OKCAA policy5/5Certificate 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 certificate55/5580 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers16/354 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: ip-81.171.33.202.centos.org
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA 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
81.171.33.202
81.171.33.201
52.56.83.118
AAAA
2a05:d01c:c6a:cc02:225e:ab54:d58c:8b14
2001:4de0:aaae::201
2001:4de0:aaae::202
CNAME
MX
10 mail.centos.org.
TXT
"google-site-verification=xFWz31gRBrIYS5zOQLeT6oY88Z2UPuW031lo3iGaXBI"
"v=spf1 mx ip4:8.43.84.214 ip4:8.43.84.213 ip6:2620:52:3::214" "ip4:8.43.84.199 ip4:8.43.84.213 ip6:2620:52:3::214 ip4:8.43.84.214 ip4:38.145.33.27 ip6:2620:52:6:2111::47 -all"
"libera-1239sd9"
NS
ns2.centos.org.
ns1.centos.org.
SOA
ns1.centos.org. hostmaster.centos.org. 2026072801 28800 7200 2400000 3600
CAA
0 issuewild "letsencrypt.org"
0 issue "digicert.com"
0 issue "letsencrypt.org"
0 issuewild "digicert.com"
0 issue "amazon.com"
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP