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76
Total
70
DNS
90
Email
96
Security
35
Network
60
Availability
Domainaei.org
IPv42
IPv60
MX records2
StatusActive
Domain technical report

Home | American Enterprise Institute - AEI

aei.org

Economic Policy Studies Advancing free-market solutions and fiscal responsibility for a dynamic, growing economy. Foreign and Defense Policy Studies Strengthening our military and alliances to support America’s global leadership. Domestic Policy Studies Expanding opportunity for...

Generated: 2026-08-09T04:14:14-05:00 · Cached result

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IPv42
IPv60
MX2
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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

2 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

66 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers31 / 35 pts · Security

8 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)
172.66.139.211
172.66.135.23

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 d357194a.ess.barracudanetworks.com.
20 d357194b.ess.barracudanetworks.com.

TXT

15 record(s)
"brevo-code:acb0546c2443cf15a938e3e5a0251fb9"
"include:45454203.spf02.hubspotemail.net"
"v=spf1 include:spf1.formassembly.com include:_spf.salesforce.com include:_spf.mlsend.com include:45454203.spf02.hubspotemail.net a:hqsmg01.aei.org a:cosmg01.aei.org include:spf.protection.outlook.com -all"
"9ms4hppqbp547g13fkj6l7ynmhqgk5b4"
"MS=ms71212688"
"MS=1343791E090D063145EEE7DFF4491F9990C5E8A3"
"anthropic-domain-verification-pq4av5=BbpPA0i1UrcT80ABpw4qTytFw"
"ncp36kvbwsy1gn972rzn43djtwsqjmlm"
"asv=6abaeea05cf47533924bfc6357618c68"
"google-site-verification=1bNUTi7S6r0YRQLZCvNgcBi0xHOn8O8DV98JZIFO9Dc"
"work-os-domain-verification-27z8nn=NVnCJAoOhI62Tmdgm9fwKQ6Xb"
"duo_sso_verification=dLmlmfzVPxn0DEHpzgNmn6emTeRFTN0PvYt8wGFM0Sb19PiTBKjhJYw37pCXKfKE"
"facebook-domain-verification=1jpohvtdzij2lviz30i8gi8azi4kmc"
"google-site-verification=vcdgO-aF28_9vvEHbOtlJ6Qzbb5EK1XH0pi-E_sEQ-c"
"MS=ms69630075"

NS

2 record(s)
kip.ns.cloudflare.com.
erin.ns.cloudflare.com.

SOA

1 record(s)
erin.ns.cloudflare.com. dns.cloudflare.com. 2410815801 10000 2400 604800 1800

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

2 record(s)
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

2 record(s)
NS 13 2 86400 20260810101408 20260808081408 34505 aei.org. fUgHthn85G+wLtaPoR+rzFNhQONpVyQJFl7qwfWoRExla6AaVMRo9s1U 7IbZ+M2K1+9z0CruW0sjJV7bFeQOQw==
A 13 2 300 20260810101408 20260808081408 34505 aei.org. w/Bm1ZvJujb5Iu8k4ETTCDg2AtOCygCbfA0K2kKYaBQSh/xxXLsEXP6t B/WYiHqD3nylOVWC1SLefAzoPMIJUQ==

NSEC

1 record(s)
\000.aei.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 include:spf1.formassembly.com include:_spf.salesforce.com include:_spf.mlsend.com include:45454203.spf02.hubspotemail.net a:hqsmg01.aei.org a:cosmg01.aei.org include:spf.protection.outlook.com -all

DMARC

Configured
v=DMARC1;p=quarantine;pct=100;rua=mailto:ead65bf434bb497fae4a2f8a5a558303@dmarc-reports.cloudflare.net;ri=86400;aspf=r;adkim=r;fo=1;

DKIM

Selector s1
k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArqYrpFPbegRxuvZuT8itdmbzcsTXjIntJb9ViNlPVJ9Z5rsH1IJaYI0GCfVZJkL/xfAfoZIENDO/DMedG/0H6FflYQVgRrIvSZHbJxuEh99YPUYJyUV1meCHePp5rXs0Dy/DLh2ZsMO81l5rg6qXo+LpfMVPWFqO/4jzIjwPOiM3bJiHyuIIhJqKf1xi+9TPY4PCScaNSJADQF9sPiRczsbjdE8InGOA6PUdLD8Db7AhqODaS9GmO4HIbFJ0gkVA7vyAHgpDNI9D4p8G51LgFG7tL0TrKkVo+s4OuonZ7OhWwhrVrFxCUR3VdtlLrut2iACQOcKZeR0LcCTb64GJlQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Home | American Enterprise Institute - AEI
Description
Economic Policy Studies Advancing free-market solutions and fiscal responsibility for a dynamic, growing economy. Foreign and Defense Policy Studies Strengthening our military and alliances to support America’s global leadership. Domestic Policy Studies Expanding opportunity for...
Final URL
https://www.aei.org/
HTTP status
200

HTTP

Status
HTTP/2 403
Final URL
https://aei.org/
Version
3
Server
cloudflare
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Google Trust Services
CN
aei.org
Valid from
2026-07-16T17:46:11-05:00
Valid until
2026-10-14T18:45:56-05:00
Days remaining
66
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

8 active
—
HSTSNot detected
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
✓
Cross-Origin-Opener-PolicyImplemented
✓
Cross-Origin-Embedder-PolicyImplemented
✓
Cross-Origin-Resource-PolicyImplemented

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
172.66.135.23, 172.66.139.211
54,34 ms
Cloudflare
1.1.1.1
172.66.135.23, 172.66.139.211
55,60 ms
Quad9
9.9.9.9
172.66.135.23, 172.66.139.211
29,08 ms
OpenDNS
208.67.222.222
172.66.135.23, 172.66.139.211
66,54 ms
AdGuard
94.140.14.14
172.66.135.23, 172.66.139.211
139,93 ms

IP, geolocation and ASNAssociated network information

172.66.139.211

No data
success
No
country
region
city
asn
organization
isp

172.66.135.23

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

d357194a.ess.barracudanetworks.com

Port 25: Closed/unreachable - 8.6 ms - 
Port 465: Closed/unreachable - 4021.3 ms - 
Port 587: Closed/unreachable - 13.3 ms - 220 mail.ess.barracuda.com ESMTP (mx-inbound23-100.us-east-2b.ess.aws)

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