DNS Report: britannica.com

Generated: 2026-08-08T17:36:03-05:00

72/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 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.
ERRORMX records0/200 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
ERRORMTA-STS0/5Mail transport policy.
OKTLS-RPT5/5TLS reporting policy.
OKValid TLS certificate55/55170 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers31/358 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: ec2-18-204-75-122.compute-1.amazonaws.com
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
ERRORHTTP response0/40HTTP/2 403
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
18.204.75.122
32.198.168.28
AAAA
CNAME
MX
TXT
"google-site-verification=iCsMOBxTnqow6GNvW0LQ292qIMjLqMXwpQ6tOfIZgY4"
"google-site-verification=3qlcdPLjaLxZmTfGmv2-7hXoRu7HWw7Sx--a2KgIoN0"
"facebook-domain-verification=yx5oj1072bsq69m7blcnrkktdu6h4h"
"ca3-5187b5f7e89c48ce9ac11ac4ad4ba681"
"google-site-verification=k10aAIZQu5EjFbrh-ABW-9q9phYyigXf-211snaxdg4"
"v=spf1 include:_spf.google.com exists:%{i}._spf.sparkpostmail.com ~all"
"ca3-34d513380a624c15b1894f20512d2ca8"
NS
ns-243.awsdns-30.com.
ns-1050.awsdns-03.org.
ns-1567.awsdns-03.co.uk.
ns-829.awsdns-39.net.
SOA
ns-243.awsdns-30.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP