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Total

100

DNS

Email

Security

Network

100

Availability

Domainhillsdale.edu

IPv42

IPv62

MX records1

StatusActive

Domain technical report

Hillsdale College - Developing Minds. Improving Hearts.

hillsdale.edu

Hillsdale College is a selective, top-ranked college in Michigan, known for the classical liberal arts and for its independence from government funding.

Generated: 2026-08-10T19:48:02-05:00 · Cached result

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IPv42

IPv62

MX1

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 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 policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 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

81 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 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 connectivity35 / 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

2 record(s)

104.18.10.168
104.18.11.168

AAAA

2 record(s)

2606:4700::6812:ba8
2606:4700::6812:aa8

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 hillsdale-edu.mail.protection.outlook.com.

TXT

28 record(s)

"asv=f364c9811461096dc5a2d45cc96120b3\010"
"openai-domain-verification=dv-28oYQqgG5RubEF7L5mz7m1DS"
"jamf-site-verification=2ozBPSeG8xh64N0dhldLNQ"
"fd8v3gu4r6adv49nmb46dp9thu"
"1password-site-verification=7GMVDQWVP5GYVJXOO7FMHSXVRY"
"google-site-verification=9vFGQ-lBdKP_0Aaee58f4-t9zdS-34bO4SuUNep-NkA"
"stripe-verification=66d9d7c6997cc3ae407cdb1ebf4432f3b4a183d47128e91c7c62f4bc47c04667"
"have-i-been-pwned-verification=a7c4723446dd7a550b2cac6f67fa1491"
"asv=26e438bb73c7fbf1d97823d8cfee2b0a"
"anthropic-domain-verification-tyg10e=ULpYm88Yl8DdgitFPtiCAbue4"
"google-site-verification=ExhspKA4To7TbKKZYs3ssbgyO9i6324yoo7HHUO8lnc"
"atlassian-domain-verification=ADY9LPy0u4OyfRy51GwaCsWa75sifg3NWEvWcUcAHEMlJrQnTs6/WJLtMyaK1fJh"
"v=spf1 redirect=hillsdale.edu.hosted.spf-report.com"
"C9QWx4GE"
"rnpmp474h7j93ljgmfr23l6a99"
"google-site-verification=d9LsGbahpp-Sf9lhE35TV6Jffw2dpN2NvISeRm4jjFo"
"ZOOM_verify_j_SRWUBSRQSExcfIjjeeUQ"
"apple-domain-verification=PHyGPpIYMpPnA2OQyNQwV86dQUmIAUT9KiPSWm_Jd1s"
"facebook-domain-verification=gj07qn4guthr334xrdtbi61erg2ltw"
"cdnstatic.azurewebsites.net"
"yTohCU40AcfZYEXXPFzqDn2gdLI"
"klaviyo-site-verification=VCW4n2"
"adobe-idp-site-verification=6ac3f0a575eb21d059578130ea6fc78bb1bbfaffaf6ec21b12fd1ca60180539e"
"asv=1f4a77d35d494b71d27971d8898911a5"
"atlassian-sending-domain-verification=67267520-52d5-4e8e-b818-0a1e8ba5b49c"
"FET2I5LDWXFFZFXNAM5FDUK4PD6IZ10HZDC9AYQ7B"
"monday-com-verification=LUmpzdJZKq1yyh09ENP-sen7j-zEntu_Q8YxOOIHssI"
"google-site-verification=Bzf4Q7hM60bNtdcvv8hnA7S2W5eX1sXLu0-Uj6nImX8"

NS

2 record(s)

roxy.ns.cloudflare.com.
george.ns.cloudflare.com.

SOA

1 record(s)

george.ns.cloudflare.com. dns.cloudflare.com. 2411169159 10000 2400 604800 1800

CAA

14 record(s)

0 issue "letsencrypt.org"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
0 issue "amazon.com"
0 issue "awstrust.com"
0 issue "ssl.com"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "amazonaws.com"
0 issue "amazontrust.com"
0 issuewild "comodoca.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issuewild "letsencrypt.org"
0 issuewild "ssl.com"
0 issue "comodoca.com"

DS

1 record(s)

2371 13 2 B7820ADD4CC53340785A1AE2190B6860008EFB8F81EFF64328498508 DC73D19F

DNSKEY

2 record(s)

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

RRSIG

4 record(s)

TXT 13 2 120 20260812014751 20260809234751 34505 hillsdale.edu. 0/PP63Uzb2CNtnM6qTN4NHxwHaTKYKHmf532IcyPJas0wM0OZOr8T+Ie eMEUCpqIuDQnhs3ru492Sk/ocyPe6w==
AAAA 13 2 300 20260812014751 20260809234751 34505 hillsdale.edu. 4te68rztc0mSi0iKOtg7f98xPJqQZb+0KdbgoL1j5GvsPcf5/a5aCyPb Morl0GvpbY5w3J/Jpk6I14kqd4ozEw==
DS 13 2 86400 20260817033459 20260810022459 6705 edu. pAfj7TwH2oYGcanhTVCElkSP9c5heGy8KhgmaMgpFS6JgCzPKHR3rGTL 3tTw6x9LbB5ktPlw5/dmCtlxA9L2TQ==
NS 13 2 86400 20260812002155 20260809222155 34505 hillsdale.edu. ed1WbOns44bFqjeqTG6yCfLYggg4y04b2JR3pWNRX7Vm2MQCPdmYcYwY UJetQHaGc2N4hq7yC6vSN5zWSdGqNA==

NSEC

1 record(s)

\000.hillsdale.edu. 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 redirect=hillsdale.edu.hosted.spf-report.com

DMARC

Configured

v=DMARC1; p=reject; rua=mailto:566c4e44@mxtoolbox.dmarc-report.com,mailto:re+8bfccd69f3ca@inbound.dmarcdigests.com; ruf=mailto:566c4e44@forensics.dmarc-report.com,mailto:mailreports@hillsdale.edu; fo=1; pct=100

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCcOlg2Cbvz4W4ZXgFqEqH5SsKW6i3gTUPdormzBEhvY5AqNhsA4E6yxWYooRIaYpPSsK0pWdn9Uo2POjbE/zbVct3rQ6bdKWgcJvsVOHK6HsjTB8vJcdOCXwVVRUFhtLGySXtFq4x859Z5ij3yQYwxuNb0HkOcnxu30HwSAMZ13QIDAQAB; n=1024,1450353999,1466165199

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Hillsdale College - Developing Minds. Improving Hearts.

Description

Hillsdale College is a selective, top-ranked college in Michigan, known for the classical liberal arts and for its independence from government funding.

Final URL

https://www.hillsdale.edu/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.hillsdale.edu/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

hillsdale.edu

Valid from

2026-08-02T09:10:46-05:00

Valid until

2026-10-31T10:10:27-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

✓

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

104.18.10.168, 104.18.11.168

58,31 ms

Cloudflare

1.1.1.1

104.18.10.168, 104.18.11.168

45,53 ms

Quad9

9.9.9.9

104.18.10.168, 104.18.11.168

43,01 ms

OpenDNS

208.67.222.222

104.18.10.168, 104.18.11.168

70,76 ms

AdGuard

94.140.14.14

104.18.10.168, 104.18.11.168

68,68 ms

IP, geolocation and ASNAssociated network information

104.18.10.168

No data

success

country

region

city

asn

organization

isp

104.18.11.168

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

hillsdale-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 124.2 ms - 
Port 465: Closed/unreachable - 4143.4 ms - 
Port 587: Closed/unreachable - 4019.5 ms -

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