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Total

DNS

Email

Security

Network

100

Availability

Domainnap.edu

IPv41

IPv60

MX records1

StatusActive

Domain technical report

National Academies Publications

nap.edu

Access expert reports, research publications, and evidence-based resources from the National Academies of Sciences, Engineering, and Medicine.

Generated: 2026-08-08T23:11:39-05:00 · Cached result

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IPv41

IPv60

MX1

NS6

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

6 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

1 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

DMARC0 / 25 pts · Mail

DMARC policy not found.

✓

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

185 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: kronos.nas.edu

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/1.1 200 OK

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

144.171.1.10

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 nas-edu.mail.protection.outlook.com.

TXT

3 record(s)

"MS=ms42561113"
"_x6ukta5satz9gl93vemtufi9mie3r6o"
"v=spf1 mx include:spf.protection.outlook.com -all"

NS

6 record(s)

a11-64.akam.net.
a5-65.akam.net.
a6-66.akam.net.
a16-67.akam.net.
a28-67.akam.net.
a1-44.akam.net.

SOA

1 record(s)

berkshire.nas.edu. hostmaster.berkshire.nas.edu. 1785557702 21600 3600 2592000 360

CAA

0 record(s)

—

Not configured

DS

2 record(s)

9100 8 2 5901EF7FDBC351A62B4E6BC94C68BB0B02908D454F382507095AB5BD 3B4ED113
9100 8 1 2D687FA937D78D88DA2C3A68809ACF56E36F4721

DNSKEY

4 record(s)

257 3 8 AwEAAaRWR95yZwnZrddrN5FcUfoOVM1UlDow6nfxL02qvbzkj9BNoHpv 30Qy/RQ2oTDdS6ZMeSFlqZTLl4mjYrram115OFBpudGAuWiIt4tpBE7i T8QJa57GB1RZQYktLiJe2WjM3sWnRhHumnlKmNexE8129+3wWg6DsA1Z nVSIMF6saYvUkg3MRYI5J4Nn4hxXIs6IGFbosS8qV7MiYOwtoJruMw15 DJgDHp2Do8F3rQLsGo9H5lPeXV897avHiNoNNPDQ8BCROxY0gGTlnveR CrH3LLq8CEszqfCmMCv+DsHhjN+U7DnH8bGwbtWxa8M0TIkUWextz/ZB kqYojSrydAEhye6Qh6mOVTvLXFDxwK8em+0cLC3JJTMfUhVOl7EOtBg5 lu8QBaUiRyCSahv5ObLPbFVNQxMXYeMl+NaZJ/c+dN62xhKclfGhp7Ak Kg66j+4kGybQkZQU+uDOXASZC8+YJTtDopg1qfezXFL2aQ5j9I/Q5idv Dg1oXVh3Cz1bsxbNq9yngWD3f1JUdLRZ3su/QPFo9HGulUXXG1HcpKmu Yt+KV7kxmR95fFm3i8VoXkpxkE899Pr5R1/yWoZH16PTMGhumaJjSFjH 0M28T6a0Vt5nwcoaG8lAx1wimLOHlpJ/WsX19WeTSxALTldxLaVpu5rh 03pBy3odCG43ADZR
256 3 8 AwEAAb3EJRHARCG5XI0q7S9hDS4OSnkZorgOlLc/pY8xBh1MCyylw/qP LcD0lksnRCvx84Jxbs4dSCVKJzaPS5kt+KIm2QACgFvTc1YFRQjop27l QdEugBH0cM+qYGm4woKCZ4qM+cauRyUyY1FtxI0ILZ5FzHksshG7U49o SwZT+jRxt88bgNbZ4B4La+5ACy1Bcf+ZMV6IY+VoUQJHVoVu/EIUfLky 5Lt/nYZQtQap31nLamVZsB7ajWHAj0UIRIyQnvoDcsc3ct6vLBJhHIGt yVcAA0YZTfsyxijq7cy4j1kGPR3UJ/QyFemzdLk11J2DQz3EIP3Fpgx0 L9wCIyuJwxU=
256 3 8 AwEAAbx+jm4/8i1kDkWSEpwkK9Qc4J9tUxWLFk6vMJt9VQF0b4m97tG0 +4E5Q5TQrkbBXkbuNMZPmDOQns/aCJcCrDmB0KIYjQZZzvaxJo3WNrjE P/QNA1KSnGQo8QGZDCl/TPVM5sIrvvtcrgQRBZdpMa/lI9xtzh8HAnfc td8OfrPLxFEItfPPQdetGkKmn6FOz8pcrEUufna8hm3QgSJ6humOR+N5 UdCoI5eu8sKuGMvvm13xmfaMlDV6ArZZ63tF3Ueuhhxfk1EUzxr3eBGp xSVEGuNPs4QBXb4pr7r+DI/3pWBOGJvXITJVB3g5tyiiAiVznCIgFMYZ s2UWASexB9M=
256 3 8 AwEAAbV6B0u9B3iHpgnjbq3jp1ix3mMNb1y/ax/lcV8mCcD62JbxqjMD mveVEfsVtb5I4HfiX27lxpQPLY84qC46jZxKe3AD6z6QvQsWyxiNzNHC lJFLPIasd3i0/Va503n/kLasci48gcdisBBcORmZDL7jOjoQ5UbOoFjy TsqgSkrJ8Q4flu8jPe2DHnJyarSaJxSOunc20LWb9I2MF+xiUQCrpetC jmH9LzaYNmo3YSOGaeTeWyqOPJkqH8b/SjY4VljGSuUjZbwUbhgQXFqd DMx4bbhIrCaj/99b9An9Wcpi3j6y+U66aKCA+RN3RCEZpKupsTEoH93v jMHxAmL4HR8=

RRSIG

4 record(s)

SOA 8 2 7200 20260831031506 20260801031506 11343 nap.edu. Onfu4djHwfYp5cjXuWljniRsjxKECTkW7+f57zRifxejbdjwFO41UA8G rFI446Gs6yzkAvbMcuG8eEvmiYv48mkwwmkt0cMSVpigoxCgdYQZAodH EIbKOsdn2sVyiND8kh+pD85bdzjrYciLrTyQHY7/yhk3UMjxL5V8sL3m 6kSUphVfxfjFx0HcA4znrW9c7H/VXqPseBaOSVB3y2xz0G7NyV6bog8+ 4La5lYesJ0ekjmyCnstH4nA/mQeuczpfYVq6I62/S6mQqq2cVR+lZ6mL 7kC31NKrelMCJ/NPxbkXVjsMmUeANzwRK/vgWMjh0823D0PGgSfDeY9L K4fsFA==
NS 8 2 7200 20260831031506 20260801031506 11343 nap.edu. GP4MKC7mLQUyuSLRsI48VM9bMjBZKwVsgedJLZMwlwR7JqFL4dtF0Pu5 mFt8AhmaEnT5LgT0sVqayFnH0hHB+n+DWpvQRn+2pO6XLBfZTtVWzdSl qv3yZ+gSn0ay1mMNXUvfbdnPqy7XVQgbrPxRGSMscgH8zDQsXD5Zi5qm H7vQK+UlcylMaDrLqhc5LjwK79/mJnKRLTTBaKFTNoBBEDzuwtf9NKSI kMqaaPhYgP/7vcQYlPUpWUZSpW2Bgbp86xVvyb1hF1cFTmDWiSR1fsBE +AKFPJslsxHKo0B+sYq/geANeFJ3AZwhmTIQ5nVjk/kXrn26Y7bkIuqM zpsKOw==
TXT 8 2 7200 20260831031506 20260801031506 11343 nap.edu. NTOb2d2Po96sqRrppLSydoTrTD2l0FGY0CNZY45H6SF59YriGBmnYLMe hf0d+N/w4ub6UZzP+D8XlBVav/UC8TyUDQkESlrYvdcvtqIEi6tGrmAz Qr8bt9z2/Mb19EFnXXkBrq6+bQw//r1NgdsT1+/A2J4Imclt2qagnsKH NKebq73B4t99eW99Oacn+Kn7CUQ5cpltascv265EXsnzRuM5KElLEHC8 4cC+KgduofASSTQetPqhEWhQoETDc+GlfRPiYZBdKKKmUkLyAXqcbwdq DcJ4BP7I99aCsVS4rMwi8wJ+b6K+WyJFy4o+m3Wl0apBrc5Uripo5TyJ WHmKlg==
DS 13 2 86400 20260814033304 20260807022304 6705 edu. OxSTqjSX4LbKU9uuDtRKIqvrcvIhMp63HB0/ijLGMCPrp7SC+YlSLam5 Cx8qiLjO0bFjsOc2BMxgrJP3mhf4xQ==

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 mx include:spf.protection.outlook.com -all

DMARC

Not configured

—

Not configured

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxP/qGlBJe703kIqHfa8gjOgUSgKaS5tCZ6RidpEP4Ht0woECbSIMytD/xaEGwf686YgLejr5/2cwkGSxa59FsRzEOOxlsAcQifk9A9EovFDyehyIWRMVDcnvpSNpmOzQJ3oJssRNWyJaMCG+EhaMS936n+CT+gjOn6ocEnCghXzYEpF5diQsr4uD911bV2I3cxuQLgS/XjVNiblGiTe0vHoRE3XNmmE78zUQFt7GpnEHLPWe29RdnFOcDBaI3VtCXSD5LNRWnh08Yh5pAz2OoUzJTlKxqpFV4eJB1ofca7RLlIesmny3yNBVURgiTcC/v3vOsiF3sq7ElHlbAyNevQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

National Academies Publications

Description

Access expert reports, research publications, and evidence-based resources from the National Academies of Sciences, Engineering, and Medicine.

Final URL

https://www.nationalacademies.org/publications/all

HTTP status

206

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://www.nationalacademies.org/publications/all

Version

Server

NAP

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

*.nap.edu

Valid from

2026-07-26T19:00:00-05:00

Valid until

2027-02-10T17:59:59-06:00

Days remaining

185

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

5 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

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

144.171.1.10

63,44 ms

Cloudflare

1.1.1.1

144.171.1.10

74,57 ms

Quad9

9.9.9.9

144.171.1.10

45,40 ms

OpenDNS

208.67.222.222

144.171.1.10

153,67 ms

AdGuard

94.140.14.14

144.171.1.10

54,16 ms

IP, geolocation and ASNAssociated network information

144.171.1.10

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

nas-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 17.8 ms - 
Port 465: Closed/unreachable - 4001.7 ms - 
Port 587: Closed/unreachable - 4018.5 ms -

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