DNS Report: cert.org

Generated: 2026-08-09T06:29:25-05:00

85/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 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.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement 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.
OKValid TLS certificate55/55171 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers27/357 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: www.cert.org
WARNINGIPv4 diversity20/35Two 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
147.72.252.242
AAAA
CNAME
MX
10 tilton.sei.cmu.edu.
10 tingley.sei.cmu.edu.
TXT
"DBCAA5143AC8DA050F83A2DCA34D2135"
"MS=ms99326395"
"GjlKiHz4O+yqufLrRIiCkmyaNeKDsFtlP0EdfJ5Hd0ERRCB3rBFfT0hjRz5KpuVbK7z1iW6Vh6MtnSK/dHi1Lg=="
"google-site-verification=XOhFzgbzrxnwXF_zY4WWTJSkIyRfIjEI8eaOJCx4WiI"
"v=spf1 ip4:147.72.252.0/27 include:spf.protection.office365.us ?all"
NS
ns-1403.awsdns-47.org.
ns-1794.awsdns-32.co.uk.
ns-916.awsdns-50.net.
ns-28.awsdns-03.com.
SOA
ns-1403.awsdns-47.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
0 issue "emsign.com"
0 issuewild "emsign.com"
0 iodef "mailto:caa-reports@sei.cmu.edu"
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP