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67
Total
85
DNS
20
Email
81
Security
20
Network
100
Availability
Domaintrb.org
IPv41
IPv60
MX records2
StatusActive
Domain technical report

Transportation Research Board (TRB)

trb.org

the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges.

Generated: 2026-08-10T06:14:41-05:00 · Cached result

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IPv41
IPv60
MX2
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

2 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

177 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers16 / 35 pts · Security

4 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/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)
144.171.1.149

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 rockies.nas.edu.
20 sawtooth.nas.edu.

TXT

5 record(s)
"google-site-verification=v3ggZVOYYfumlz1Hi1_GJujFw2nlgUvMq_kcCAOAAic"
"yxtk29vgysgddywd77hgktffc5xk8s6c"
"_47giccnty0mhw01iqtwzt9fcjakw7bj"
"wt172t9b143t5dcjr85hcpq2czl2s3f7"
"_duu2iy3ec1h1qg9xgjk6wyz8yfh3qlt"

NS

6 record(s)
a28-67.akam.net.
a5-65.akam.net.
a11-64.akam.net.
a1-44.akam.net.
a6-66.akam.net.
a16-67.akam.net.

SOA

1 record(s)
berkshire.nas.edu. hostmaster.berkshire.nas.edu. 1785557702 3600 3600 172800 360

CAA

0 record(s)
—

Not configured

DS

2 record(s)
58189 8 2 39E1A8C76E32A20620FE3278FE9AE95E00CEE581922DB8D2134C3577 E411FF3C
58189 8 1 250D8A4543A67FA37B89DBA6F05D45ECCDEE61BA

DNSKEY

4 record(s)
256 3 8 AwEAAcgkjpSrp+FY8JNhUIX6LojF4G5lVpP4qR6lQuVhvTUos6Qbmvck idHk02spsoOojD0RLpUqk9GiXCm43wadvfBpwDGDsEwLdZnUYPkvuKsF WYKsAoGLoIJ3c/hb9Q5RCTnij3O8eO4r+EYLaCYuw8Dx8ZJkkzxfaPLH 4U/Jf6qxru+W3bhF1ZXJ6hodR1mIwdOp+Ep2PLDPAHdvg5YiJePQjls8 EbZebrAlC41bYz7A/JHSPHRZCLBbyZfPLAQmrSUxlhG/eqV5Iqjmx8Rr TBLQ8w910Fk/xMARorQHf+cAmFlopdqtPo3+AIxos1Dqxgdpm+KXtuV7 KllSVgnXTBE=
256 3 8 AwEAAdwZNLnjDWfhbkFgs7VcCX5yYQyebSCBkr4DVltmuvPOTaAlQ5L/ z4jfWrakr8/95Zpjn625CsgBrW3Tz6F8g0xNaoh2kvjn/r9RSktVCmsp YZB/ehPkEsfYNfphnitmNvaRDgDTURHpj7JiEwFtFgAld/8lKuqU5yU0 jhrD183cVWN6VWDgUZuunqEbBlDK0GHPcz92zZ8c2MFfZUdOtoXv9BSN zQGOkOGoY/BOBBbZzihAzts7YTliwqTRnAFkqSQ+9toMiHDGXcLGJWeA XonwysDzjZY4/q0ST62mppCFAeZ58t7OsYSw5lGzKDwqtiztLQ3ZnHf5 lG0gKev6yQ0=
257 3 8 AwEAAaNDMKLLcmE6fkSl9TvyNeQgMXO0AgQMAjT6kozHKkC8MHvHA/i6 ov/Jsf/uvfmbg/s+4XV3vL36Ftqcy5cHSOJNyGc8iYlxIujk1OEtkPfs zaOVkaOrkToxiLCqFTu09vq/ZtAnqI5vXr99aD4CbEUIqSsLC4k4rOy9 FNbjlamsVj+qeKyVHz11KlToShgd0JeTyjF2Rf/sBqE5sgsck0bfwsZi USNwJtL7hi/VlOxSjP33176EJrbFcjdhL+6zliGcpH/Z6Zjha6/0W9S6 WhZGWTW9DokHwGbSzw7VSria3md22QM+PkvcFtIOkdCtAsVpcjpqFVTR c+Uw+FfWsyC3+u9pz3C5w6W3zeWld9nOHI5fGApsndew/Wt9h7YadICr wAc2vnMOUSQiZpFi24eWX+o8Y02/0xMILn0kP4LWMZn+T1JLAJGvX3Hc otxWeRGCXp7lPTQlD7TlocpdtqVDweR9gd2F5C1tozv57/2WLTl77Lfq n3veXRReOvmt4MEEoju9OYI6mPWyuFtuzaaViv4Y05prBmUd95012dmK VZAvZgaFjs8C4nGgBzz7ZA1Y49oWFHDrU9YxnRjOPphqMFRBgCWL1qsm 10Z2p+ch56PoVWzrJ6kjX7XDhgRGed8oEelP+MbMeVnshUiFsxu20vMg aZueCbLqvxvGhB3x
256 3 8 AwEAAc0NDfWEzYL8FQrINRJuG/0zkGRL9QWM/MTtaJiVwvoq2KwFI8uv g3AfpOUtjmLOyeUMjWVKl31neG9P+T5FsYb2bD6lB7KwZuaOofeX1K5U 7GcSnNAbodNI8gnKUoHjLKtyQW+sIrS2yVaKt7VUSXdM0OmvqOA3C7Ji do1xUveDy0PXOUCQwe8mrsW8srYgDAVsy+MDLlcfC/nhT6rgeFemSRqK z4tHFJNYuNSOEbeYzC66oEN80379SKz9LiI+S3Fqp92hc0setjsiuk3d n2OrB1A4pv84JhNr4YlHV9U8dxg1lRzkfU+Z7coFhAahV0vXUiKzI5rt 4lrkvk4uBL8=

RRSIG

6 record(s)
DNSKEY 8 2 360 20260831031505 20260801031505 45366 trb.org. N7HKhIjWvRt9xsIRNKzmnStE8DTgVQMT5GG9mSfs4DYbFIVNhZntgWsd oxe4ouwSZhfqliz5aBd4m5dssqnm1H7tHVxnZb4c0j05jIo9dETOlrEO rSATvCfbRcsPrTltlHUgb7Z2ljSFWJDLqANVz0BaScVdLN9jeqXoxbiH J2To5yz5R3OyIpHJI6uNcbdAopm1rugoz7bwImuNJQDqeubALf7/4QS9 YpN2q+12ISyj2EFAUHTGsFuCsdujNncBMlaHzAWSMeNz+UnnX0MikDLF W0xTa5UU4c8KgAVTR81EFq0LT6c2xIVXxt7doiZJAvQX30vadIwfXwa5 VsILPQ==
DNSKEY 8 2 360 20260831031505 20260801031505 58189 trb.org. XUcyE2E+VyosgH50j2H0CdHIMTVTv8Hljuwb9J1fvdMCYLTzwmdH0pDk ykkIlyMxprt8gmnnUEw1OVeV1WECineT14Y+uTFlcoKt2E3yc5Lq13Bb k3DqplafZwSAojqD6OQzalB/CzAVKPKGi0Q+Ol+DJ7VQJtrmfoNy4anD DfQtp4Bmm7m10o/RC/mNtA1S2a+bS2Yro66ykytOKzJgImh1KVO5XrhB QK128q6GrIQTElwsG2nGHIGNk1gwKb6k7l0OXu/uM65dGTSLpX/DakqJ cDoc0ElkpBwPAkmb9qR2p04y4nrqDDMUlgsWdQzWetC+R7EtQqG26WTW +f/+mEp15QAW1mYNenZkErm24k5mYtISqfdWQ4B79K5qPsJJJyfvqaVA U3C01FnwY6S3gO3Z5xMszWFq9ggxDutw+u3FgNg6pxAhuukA570Jl6Dp FW+QqawVMpy0s3O0LofOqNGuHkU0gcTCM2UwFc1wbLSuWfZ8eC8kGwN1 xq0Vg77D0CxZaMmI2a/6d/BPKSuCTXD4QXhd1p5M3yJpwmlTwzmLDr/z 4HWvD5njKX4s2n9DLDJyKf4nmnjz/z/C+0n7VLtBw6Nkk1ID5hS/afBy L+ypi1A0/ibE5OJCWzJGfypPmotkEAF+k0cj7nOvx0oK+HDBYQhtvK8T GmDdntRYcMs=
NS 8 2 360 20260831031505 20260801031505 45366 trb.org. LMHBddMxgwbi2QAsZC5KjSo0nIsaSpUA6vSLhXegjixrw9UCf/3rAuGs T4tyOmBHfQyRpJRig5ceXOu/3Itelor+x/GIaW++QASU71bOrfEDlRzC dqvO5yFM/OrrdKr1F/lLShdReI/l2E04ei57KbGf1QVAse9hfekjjdTl 3YII32gfMuU7iD1vnoGzXQ28hLsr4JLzW+YSFRPF3ZKVFPfssTmnNEYi wNeWtrAFBuvt7NAink3Ue/qLoWsjCG7c2SHoYGoOL+e5o+mtRdi6Yd/H /wUtCG6X2QtlzokVG492zPklGJQJQ0YxHv8pyu4x+3IeGyB1KSsS8r8j zGiNEg==
TXT 8 2 360 20260831031505 20260801031505 45366 trb.org. SIlkc8iFnjdDnLXjbBc7tc0GfgreLZjz3Emtc3uBLY4xQB31btgQ7HGQ ue/PaisPzwj1rYglpBaXKIvZZU4TMgOu2U8wOYhH5AdvR8YRI8KqDCVW 5UUuLma5ivd3ZPRMylzG3T8URoFiMfsfL2LZ39FHw7srA9/mrfOueu/q r9PqVdGeqb9zxGpKx6WJ/6NsRYpA+diuyfWIzL9litowe5F/aihr3uZ2 HmE2Lg5uKDKHnvrfLANXGzMAesG7DmYYHbkFGEy8r2T3EuFkyqq7uqub wVp9mSKNBNrX4wqCErFDnKA/58abcaezc14Yh0bE/pbmyN9MIwfx1MHs JPltUw==
A 8 2 360 20260831031505 20260801031505 45366 trb.org. C+579kZ6RuIyu49YmcONNYqKTF7ZbBfgoI/OmRlXgoT+B6BlJd+x4lHf pGdrwfGgd+g8fxI9OFyolq2gNXhbhkTycMe0G14u5AhjQQ+6AB/Y+e4a bN6SHPp2+zwkkcV/zG3jeOm5E/LINPTr/KWZZlXhotvbGBvGEw1+/J17 E81o76/eKS681C9KOtb1v0Bvh346I1UudamdbWaAdYjAiWMrKBD9QVoQ iPCMkMPZsqz0QgFnP3BNhfiKT4ME+rfl/5Es2F8kYiFujAjHsXTzM2ct 6btwWUk9YN97NxhRUukm1tWNsX1zzz05ymq8iJA3GTD5zfahHZ9HoQRt aRLOaw==
DS 8 2 3600 20260830152406 20260809142406 44925 org. gMmN5iJzjblhnJQo/AHe+kEMZ5oeTJL3zn89FEMG+RjJ71lE2AZ/hYp2 u/ToRN09z7RW6mnHiLkdsc4VCyOkyousGdRQyV2Je4Pbva/TD02pWJQ9 dkWdkQCCJhnq5+cl/EEIeusrtGKnA9YrOyFBwMFPbHSnyTot2nmwuObT Zgk=

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

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Transportation Research Board (TRB)
Description
the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges.
Final URL
https://www.nationalacademies.org/units/TRB-Transporta-23-P-586
HTTP status
206

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.nationalacademies.org/units/TRB-Transporta-23-P-586
Version
2
Server
BigIP
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
www.trb.org
Valid from
2026-07-19T19:00:00-05:00
Valid until
2027-02-03T17:59:59-06:00
Days remaining
177
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES256-GCM-SHA384

Security headers

4 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
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
144.171.1.149
61,83 ms
Cloudflare
1.1.1.1
144.171.1.149
85,93 ms
Quad9
9.9.9.9
144.171.1.149
59,98 ms
OpenDNS
208.67.222.222
144.171.1.149
77,15 ms
AdGuard
94.140.14.14
144.171.1.149
472,48 ms

IP, geolocation and ASNAssociated network information

144.171.1.149

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

rockies.nas.edu

Port 25: Closed/unreachable - 12.4 ms - 
Port 465: Closed/unreachable - 2.8 ms - 
Port 587: Closed/unreachable - 10.2 ms -

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