DNS Report: criterion.com

Generated: 2026-08-10T07:08:15-05:00

81/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 IPv4 address(es) detected.
OKIPv6 (AAAA)10/102 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 records20/207 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 certificate55/5580 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers31/358 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA 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
172.66.40.190
172.66.43.66
AAAA
2606:4700:3108::ac42:28be
2606:4700:3108::ac42:2b42
CNAME
MX
30 aspmx4.googlemail.com.
20 alt1.aspmx.l.google.com.
30 aspmx2.googlemail.com.
10 aspmx.l.google.com.
20 alt2.aspmx.l.google.com.
30 aspmx3.googlemail.com.
30 aspmx5.googlemail.com.
TXT
"google-site-verification=oEWEYCM32OcZJSOXVbV9T2D0bYfPnCkNEU4sLYkk7II"
"google-site-verification=dlCxmPh7hANd93GYc3JRFCjD1vIdiy4qy5IyBSorzsY"
"v=spf1 a mx include:mailgun.org ip4:72.46.233.164 ip4:64.90.180.59 ip4:167.206.4.0/22 ip4:74.201.255.11 include:_spf.google.com include:servers.mcsv.net ~all"
NS
serenity.ns.cloudflare.com.
donovan.ns.cloudflare.com.
SOA
donovan.ns.cloudflare.com. dns.cloudflare.com. 2411273689 10000 2400 604800 1800
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP