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74
Total
60
DNS
90
Email
77
Security
20
Network
100
Availability
Domaindukehealth.org
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Duke Health | Connect with your health care at Duke Health

dukehealth.org

As a world-class academic and health care system, Duke Health strives to transform medicine and health locally and globally.

Generated: 2026-08-10T14:36:45-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv60
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

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

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

!
DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 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

72 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
IPv4 diversity20 / 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 response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
150.171.110.210

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
5 dukehealth-org.mail.protection.outlook.com.

TXT

3 record(s)
"smartsheet-site-validation=O76TFCQrgvi_iINYuN0Z5_fQFSPvTa5U"
"MS=ms52951480"
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"

NS

4 record(s)
ns3-05.azure-dns.org.
ns2-05.azure-dns.net.
ns4-05.azure-dns.info.
ns1-05.azure-dns.com.

SOA

1 record(s)
ns1-05.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

NSEC

0 record(s)
—

Not configured

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 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1ePRErzASHM5frJhejJUKH+zJmdbBV0yp5PObIUGo8VfXoTFLb3rttYGZ/FNDmLivU5pH142sSmOZLqJS9STTYS8TLhEamIsaog5GXWvuzvy47Fx2T/vakloyzfkiaP/MxWddPsd5D8NrF/k4DFP3yvLkv5J9H2MPG4zXoIcW+NWi6WZbL4LFC3OoZLLEEgFTO+b3ItkgQRCc3sHf8EC2OINks8K0f5n0EMFzF2SWcKJ/rrzQpXp8vWvpEAYKZrHqnhK+Scf4oqX/JmaIBP1cLT4eje6sBPQ4boVVB28yxsDssVXlftx21Gx1PrEERMr/tHA/Xjw5EZfYxTqTMY16QIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Duke Health | Connect with your health care at Duke Health
Description
As a world-class academic and health care system, Duke Health strives to transform medicine and health locally and globally.
Final URL
https://www.dukehealth.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.dukehealth.org/
Version
3
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Internet2
CN
dukehealth.org
Valid from
2026-04-05T19:00:00-05:00
Valid until
2026-10-21T18:59:59-05:00
Days remaining
72
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
—
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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
150.171.110.211
253,66 ms
Cloudflare
1.1.1.1
150.171.110.209
54,79 ms
Quad9
9.9.9.9
150.171.110.177
66,20 ms
OpenDNS
208.67.222.222
150.171.109.178
32,28 ms
AdGuard
94.140.14.14
150.171.109.77
293,36 ms

IP, geolocation and ASNAssociated network information

150.171.110.210

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

dukehealth-org.mail.protection.outlook.com

Port 25: Closed/unreachable - 20 ms - 
Port 465: Closed/unreachable - 4017.2 ms - 
Port 587: Closed/unreachable - 4047 ms -

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