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Total

DNS

Email

Security

Network

Availability

Domaincdt.org

IPv42

IPv60

MX records5

StatusActive

Domain technical report

Attention Required! | Cloudflare

cdt.org

Generated: 2026-08-10T00:01:18-05:00 · Cached result

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IPv42

IPv60

MX5

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

5 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

84 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

HTTP/2 403

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

172.66.138.228
172.66.133.113

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

1 aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.

TXT

11 record(s)

"MS=ms50691630"
"ZOOM_verify_00ls52xkQoWl-HdxdHpQrg"
"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3q1kUKgi4OWkbA0YMYSmoFE8RuAaXP/F0C+Agi0H67ov5uYEowWvIBpTx1fBnuYO5d7LvcYpFgCkiDI8ANoSM7bND5zcB5YQU22d2RyFNBewymDwJ+S9Cu79KckAJuApCbX4cZZQvZJGOfEnWsMHvaT2F4DQ+bOwEtlUjpyVDjwIDAQAB"
"google-site-verification=4KQiTNedLpOkovRbDQudZJAvSJTVFepRlp5iOdisBms"
"-----BEGIN RSA PRIVATE KEY-----MIICXAIBAAKBgQCsp6oY/WC5vK6fFBWqFxsIoSkN2otqB147eu2IpzVjENCzpIKFGeSTcxFCAXfahjcZh5mCXu+LSHPmEGkZjlY4wngNka4mOaBzt2LKKBlWXpxSTcKlGO9DuWVEXhv+XEXO/VISmbJb84y9+G8ijhOCxNxW6HQVkaNgnWpBMsfAtwIDAQABAoGAc0gUNFFid0I72m3/tS1uWIm7Lsvg" "0LAQxGhlGByFchs1Lu3GVHcgfy+Ss17llxyMx9gZsMoQ6hA7ir8kXfMDMBQAi5ABHwvwS22laiTXCgiO4A/9fHJ61lzXbwS2+5aUSocOb2PY10CDRNAOFLGOy4g6iOx2lm4k2moMsBfc0kECQQDaBJ4ALOcT3UAB3yCesHCTZYc1LshK/jKY3bGArTo1WFxOtmL9k1IFWLha87dFf/JVuU/odM0v1byqzkv0P2qhAkEAyrvmNS2wBvoENh7nsaQ" "D0ExlBCa32UoYt3jxbtiK2IeE1VG+C+ruJUwudCUhNcbbwvDfWl/UYqZgVNP6mZAEVwJAUP8+JBqKjxq32PooiExMxrYFkYCb8SCXc6uJcqDo60C0qpmgFU1SP6JCe6foAu4R/j8mrNoYERl7SonyNgAJgQJBAMM56levZWFyhXewjyFrdhiyWFyFBGoEhoS3vJcng50781iQ3NgRJb9Y+yrxTmfA1YOF/S/ENHvDB+ToNNyH6QUCQGB4L2Fh26" "HjwZcQooNmrDY2o1J5fxJUV7IMuNdwsoFjbSckcdtmcShCRxVI3tk/41Uvl9xOz8f1I2mAvXpoCSA=-----END RSA PRIVATE KEY-----"
"v=spf1 mx include:e2ma.net include:_spf.salesforce.com include:_spf.google.com include:_spf.intacct.com ~all"
"apple-domain-verification=hbV1WOSuqr0sS35F"
"anthropic-domain-verification-gtbrag=EwZhlFlyzWbwbX0UgNKKMMF08"
"asv=39a66b6565060c5e472d38b38d2cfe15"
"airtable-verification=9ff9c797236fb1b6794b2e5b5cc90157"
"intacct-esk=200CDD0F3660BF37E0636C068D0AC0AD"

NS

2 record(s)

noah.ns.cloudflare.com.
abby.ns.cloudflare.com.

SOA

1 record(s)

abby.ns.cloudflare.com. dns.cloudflare.com. 2411335768 10000 2400 604800 1800

CAA

0 record(s)

—

Not configured

DS

1 record(s)

2371 13 2 A5BCDB3FF960D91CE684AAF4504FFDE5BD67777C7F3F3A7C5832EB16 8E7DBCB2

DNSKEY

2 record(s)

256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==

RRSIG

8 record(s)

NS 13 2 86400 20260811060108 20260809040108 34505 cdt.org. xI7kqdasHxxcZemOMk5MlYpaXTrjZ2ydoARXkDjrlA9KHOkzBOG46oBg gZ3klpuon4P3IrrADoplFRHAThooLg==
MX 13 2 300 20260811060108 20260809040108 34505 cdt.org. qVIx938uT6laKK3sU6JIOHFoYLX9lljPeFjXdB77pQRb9HBvS4V0XEZ6 Cma17VM5L8WDimDczmQtBlNbdeoX2Q==
NSEC 13 2 1800 20260811060107 20260809040107 34505 cdt.org. fx6IydaM6KPo/GikxT656reuCotEAGTgYOr7AOX6TTW3omGUO9fhVohg PkT24cBvBmu1t5FhgxdnBnBkV+Vg7w==
DNSKEY 13 2 3600 20261002093320 20260802093320 2371 cdt.org. wlAN/LmZtcNbQPDqortLapPZZLuYRaeEEFR/lxVZ/7zpf/rxLVfsEnIM IYZtPe3EeRSuP8E0bYTLnOyp9oTTNQ==
SOA 13 2 1800 20260811060106 20260809040106 34505 cdt.org. QN0dh96H5Uk8u1QgqI/07db5squ1yHvGCRR1hiUuMyAUD3rmtTeprfOr XsKqqMESm9BC/tn+bMLVX5sbGceWlA==
TXT 13 2 300 20260811060106 20260809040106 34505 cdt.org. VpRbVUf7XbkaglFT/DniHdKTYTsq2ieRjeWzYTItX3hRH13h76bd3b2+ KDooNZz7aMWbU2nxkxCs6FpRkf1JRA==
A 13 2 300 20260811060106 20260809040106 34505 cdt.org. y29vtoEXm5X/n1EvAE6v5DYAForKHETWzVnzPXX4ZpDKndzecxM45MGF Pmp7Ambf4axmtoIeOeCYYswtC5FFxQ==
DS 8 2 3600 20260830152406 20260809142406 44925 org. mveIwaF6Bmo60UZe63lU9VJ7QF9MKQdRJWcKnH1SCgNkYU37lSajR/ea dLucfJmZx5XOhaOw6Hnu3SHvHDqovSFcxaQK+z2FZSv455lje3hpmbBw s5Lt7nJcSHr0rm0w388R40bgvP7GW+1ek9uFoWeH8ZANxbW5dmG67kyD fb8=

NSEC

1 record(s)

\000.cdt.org. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 mx include:e2ma.net include:_spf.salesforce.com include:_spf.google.com include:_spf.intacct.com ~all

DMARC

Configured

v=DMARC1; p=reject; rua=mailto:2kqpwiag@ag.dmarcian.com; ruf=mailto:2kqpwiag@fr.dmarcian.com; pct=100;

DKIM

Selector google

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3q1kUKgi4OWkbA0YMYSmoFE8RuAaXP/F0C+Agi0H67ov5uYEowWvIBpTx1fBnuYO5d7LvcYpFgCkiDI8ANoSM7bND5zcB5YQU22d2RyFNBewymDwJ+S9Cu79KckAJuApCbX4cZZQvZJGOfEnWsMHvaT2F4DQ+bOwEtlUjpyVDjwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Attention Required! | Cloudflare

Description

Final URL

https://cdt.org/

HTTP status

403

HTTP

Status

HTTP/2 403

Final URL

https://cdt.org/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

cdt.org

Valid from

2026-08-04T07:27:36-05:00

Valid until

2026-11-02T07:27:33-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

3 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

172.66.133.113, 172.66.138.228

61,60 ms

Cloudflare

1.1.1.1

172.66.133.113, 172.66.138.228

21,32 ms

Quad9

9.9.9.9

172.66.133.113, 172.66.138.228

27,39 ms

OpenDNS

208.67.222.222

172.66.133.113, 172.66.138.228

68,15 ms

AdGuard

94.140.14.14

172.66.133.113, 172.66.138.228

58,10 ms

IP, geolocation and ASNAssociated network information

172.66.138.228

No data

success

country

region

city

asn

organization

isp

172.66.133.113

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

aspmx.l.google.com

Port 25: Closed/unreachable - 26.3 ms - 220 mx.google.com ESMTP 5614622812f47-4b1af71a5absi4905998b6e.65 - gsmtp
Port 465: Closed/unreachable - 4021.1 ms - 
Port 587: Closed/unreachable - 4005.5 ms -

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