DNS Report: rcsb.org

Generated: 2026-08-10T00:42:23-05:00

77/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/304 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 records20/205 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.
OKValid TLS certificate55/55170 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers4/351 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
132.249.213.19
128.6.158.51
132.249.213.18
128.6.158.50
AAAA
CNAME
MX
10 alt4.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
1 aspmx.l.google.com.
TXT
"v=spf1 include:_spf.google.com include:_spf.createsend.com ~all"
"google-site-verification=A8M31jAX8SUgQYzbnF5r-wgykna2i5Hp4J9fziVD9Sg"
NS
dns4.p03.nsone.net.
dns3.p03.nsone.net.
dns1.p03.nsone.net.
dns2.p03.nsone.net.
SOA
dns1.p07.nsone.net. hostmaster.nsone.net. 1776961356 3600 600 1209600 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP