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80
Total
95
DNS
45
Email
73
Security
85
Network
100
Availability
Domainntnu.edu
IPv41
IPv61
MX records1
StatusActive
Domain technical report

Norwegian University of Science and Technology - NTNU

ntnu.edu

Norwegian University of Science and Technology. Located in Trondheim, Gjøvik and Ålesund. Specializing in technology and the natural sciences. 40 000 students.

Generated: 2026-08-09T19:29:45-05:00 · Cached result

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IPv41
IPv61
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 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 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.

!
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

180 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: lvs160vip03.it.ntnu.no

i
IPv4 diversity20 / 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/1.1 200 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
129.241.160.103

AAAA

1 record(s)
2001:700:300:6::103

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mx.ntnu.no.

TXT

3 record(s)
"HARICA-DNvOp4t4DYptYzbgYuZ"
"google-site-verification=l7rHBiJUweZWnakhZXteiuAl5VUOHGcuakoPohLsPWI"
"v=spf1 redirect=_spf.ntnu.no"

NS

2 record(s)
ns2.ntnu.no.
ns1.ntnu.no.

SOA

1 record(s)
dnsadmin.itea.ntnu.no. hostmaster.ntnu.no. 2026080601 28800 3600 2419200 3600

CAA

0 record(s)
—

Not configured

DS

3 record(s)
39666 13 2 1CB42F7859EC67FDFD5D40B60DB49E5C59DDB7A55600063AA9EF192A 1C56B76B
39666 13 1 92D900CE836F02C9ED65135443B633AE2F635BAE
39666 13 4 DB35CB2828E97BDE554A3599D9DCFDD4AB7A29125A742A36006D5A78 D248884F8C4FC37D34D3B266EBCB6443C4D3F123

DNSKEY

1 record(s)
257 3 13 7DvCvrgxbEKy4nobiTQmryx8vw6PVarF5uoNuJYuauq7Gx2mByBS3EHH 9RYtICqYcBTw+OlfayuWHwhJH3qWYQ==

RRSIG

3 record(s)
NS 13 2 86400 20260820000000 20260730000000 39666 ntnu.edu. Jm2xit3GospaJL01np5B/4gLsmDmZAi23iwS8xIWQ9dhj3UGPQKEOvKq qw8brS3bBXNNlTZrCsSf8PyLRkKHAA==
MX 13 2 60 20260820000000 20260730000000 39666 ntnu.edu. M+V14A6UwcC9V4mzfmX/IFXEigzVlEOueO6lByS9quo+IXHKFmJVGWAe hJHKoT3NJfVhtchgZ2K72zmSVSabxA==
DS 13 2 86400 20260815033206 20260808022206 6705 edu. ZuHOr+o8cEvsUPYeoWtJchACCDlW7F7hTTQdHGur8TCXdtlCEQsAcjmt 6ioy8L8h92OhApphirjNT/AhWxLcmw==

NSEC

1 record(s)
s1-2021-ntnu._domainkey.ntnu.edu. A NS SOA MX TXT AAAA RRSIG NSEC DNSKEY

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=_spf.ntnu.no

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Norwegian University of Science and Technology - NTNU
Description
Norwegian University of Science and Technology. Located in Trondheim, Gjøvik and Ålesund. Specializing in technology and the natural sciences. 40 000 students.
Final URL
https://www.ntnu.edu/
HTTP status
206

HTTP

Status
HTTP/1.1 200 200
Final URL
https://www.ntnu.edu/
Version
2
Server
Apache/2.4.52 (Ubuntu)
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
ntnu.edu
Valid from
2026-07-22T12:44:03-05:00
Valid until
2027-02-06T11:44:02-06:00
Days remaining
180
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

2 active
—
HSTSNot detected
—
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

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
129.241.160.103
346,19 ms
Cloudflare
1.1.1.1
129.241.160.103
472,27 ms
Quad9
9.9.9.9
129.241.160.103
316,08 ms
OpenDNS
208.67.222.222
129.241.160.103
693,91 ms
AdGuard
94.140.14.14
129.241.160.103
269,96 ms

IP, geolocation and ASNAssociated network information

129.241.160.103

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

mx.ntnu.no

Port 25: Closed/unreachable - 133 ms - 
Port 465: Closed/unreachable - 261.8 ms - 
Port 587: Closed/unreachable - 265.6 ms -

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