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Total

100

DNS

Email

Security

Network

100

Availability

Domainkth.se

IPv41

IPv61

MX records4

StatusActive

Domain technical report

KTH - Sveriges största tekniska universitet | KTH

kth.se

KTH - Kungliga Tekniska högskolan - är ett av Europas ledande tekniska universitet och samlar studenter, forskare och fakultet från hela världen.

Generated: 2026-08-09T01:35:41-05:00 · Cached result

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IPv41

IPv61

MX4

NS5

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

5 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

4 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

11 day(s) remaining.

Certificate lifetime2 / 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: ns-vip-01.sys.kth.se

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/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

130.237.28.40

AAAA

1 record(s)

2001:6b0:1:11c2::82ed:1c28

CNAME

0 record(s)

—

Not configured

MX

4 record(s)

20 mailfilter-ng-2.sunet.se.
10 mailfilter-ng-1.sunet.se.
10 mailfilter-ng-3.sunet.se.
10 mailfilter-ng-4.sunet.se.

TXT

11 record(s)

"v=spf1 include:_spf.kth.se include:customers.clickdimensions.com ~all"
"google-site-verification=6B_ijtuPLs8QEQOrY6CA9KNR6x_Tlq9h87fvzbQcTGk"
"include:_spf.eu.messagegears.net"
"facebook-domain-verification=ybxcywd9y5omfyzv9a4hi1122pxhys"
"atlassian-domain-verification=bdViuC6aa8uovu2aPgsZjA4zglkgbkqx7eCtfJtIXi6uWFglmI96V2EdENETiV1k"
"HARICA-2QmDZC3DyhpI9p6wUi3"
"apple-domain-verification=yiK5a1btuIncRk6Q"
"MS=ms86914267"
"mentimeter-22c50963-9801-4565-a424-07d4a1e2c1c9"
"adobe-idp-site-verification=9cb3a0e2a6197322d0dd6d29de0e1ac1ce9f990e3d5bd864aa4c19007f78ef91"
"KTH Royal Institute of Technology, SWEDEN"

NS

5 record(s)

b.ns.kth.se.
e.ns.kth.se.
a.ns.kth.se.
sunic.sunet.se.
ns2.chalmers.se.

SOA

1 record(s)

a.ns.kth.se. hostmaster.kth.se. 2026080923 14400 900 604800 86400

CAA

4 record(s)

0 issue "sectigo.com"
0 issue "harica.gr"
0 issue "letsencrypt.org"
0 issue "digicert.com"

DS

1 record(s)

52831 8 2 A8E4D57A904B2D583EFFB47BF4F45DA82B930D018BCDE5FE094E72C4 D5687A48

DNSKEY

2 record(s)

257 3 8 AwEAAdclJQ603lKyef68/6e/m3Xn6Ng0Ph0x2Rg6B311hk43rrR1xAc2 WfwTHCkvoukR5rrRPTHaMOfCUbWeJZXaJLhhzVJeR0l4maekQ/eaZadg lX2E4tg3eYWPe2yg2IAVWLkVHJiYL78Oh0Xib29OWndptE66tMIFSGMo 136ZjOlKiMf9wwWkVLDRUxUeyVFE9DUM1I8+Rj6ws84UtGyVJYy/82iN U6I2iC4X+/2fyaopkNqCzuiRZRewATCqHvza6wpQGO5qqEE1Ol6v3gCg nP6dHdA+qfc32NI5zncRK1Y2VZxM9+C4dOOUCJQ2iAb9x/Bjue8NhixB LOaeLBbznsc=
256 3 8 AwEAAcX74sXgnIHMLBd/Q7EK7qFXlUym9qST0qxoxGvrFT9x231pOplh OfbnGw9DOW265DS9OQNbyo+jozYJRKs//gcKdmffW3pRRxKlhJGOUZJ+ BETklrgf7/DXH0lTDgJ0TZO9G8MfJFGXFVUbc5g/iv7TyxcQmf/MRvBw 9Pofb1S+ZoSuvwX0IloHJVvAWgWb15uJpoUNhFVUnP4QHh9saqMYL4sV 2B/8/Vw7jUrIwi2Lo6nUepv7QjjimyUnajAdiDyK5W7ChIvviuf5ZtPy gKPHKfEqDMA/UufhoRPbdWKvl8218f4QrWKYjsS0xT8O08Q2M/AA3myh faAdEUWbU1k=

RRSIG

3 record(s)

A 8 2 7200 20260905215418 20260806205853 35811 kth.se. jg1Cr6nZ/GHSW1D2tJ3lDT/QsnMlKVZUh3aNVClq8ea8+L1SWaivx4JV d2hDI80/7btaSdAfTjO01bVoPPsft8GTlgkRRYzlZqp9wqZLf96h63Bb 3wSe2nojj4HgXGKm1xzkNr9TBwLiZC9ym2N1pqoXyfFyxtA4LWV7ln9G ZerI83aXMF4IwjASzkIaZpk72zJnKMBeRtXj2qMIlVPMSAugGfnxW4Ug LiJ/ks/8Dczmjll0SIs5/5n2UWJINZvkxQjNc0gYGldJb77TYVZA7tfu 0L92NTvuHstKRb2XFdiBaxiOAV6iH5SDjOx6GxEyaazyM81tJszM+TLE ndtKuQ==
DS 8 2 3600 20260823031137 20260809014137 9573 se. O0fMReQwn4aRXgu4ia82ZtJF/IKMADO0Csw7HrOwJvxA6Spi6tkGoZyb grCnLzQH02fV56930el3sMhwBJHN1wluU0SdaK+QaH32XVSf2qEdRID0 diui/Jra2giy+1rIm1m8yq4E1w3kcwRwxD1NWluIzd2P1AObp0YnAwZb ehGpoMi8RJsbTIjlRC4b78V/SQw7Bb3ykz7U0ptBUXX5CXFos2JUivHV pKzMv9aZ6o/ZGDw0fTrTAXzO6hfsUqvDY1nMKSCl1COnnIgdhXqdkuFJ 9boZ9oh3ybQrC9WJyJN65EdsIz3bEn7UW4HWufqGjKxfB/ic2P5+5ROh PGiNtQ==
CAA 8 2 7200 20260904103400 20260805101555 35811 kth.se. tkf2ubSukXho4cR28oCfHSwj/K8a/9XNJ+bLEnnFFiAXqddgq/uTqQle Rctd1zbv/rDyOPaZ+QAvo3QhDNd7Nr8eHwC4cCiYb02lBjA4uhndvfAa 4RPpR99EeWUEbICLA5mFcS1GtER5xW6oVwBN4h1Riq+esTkmeh4Y8/r8 t2ec1NvkicicEU/hfPTqiGPQYI+Rv8KcxKGgRG1KhzZPeSqJgRJRoeNU yR0Z0/RYyaYJv2fIbtlLPoI2FUXqm12jyJz1bY2nCAtKiU+xMpBLU5N2 dsLu8VnRkeqx0l5H1Q/eg4hVMdogtGIwlAzIDmx7nwQ0+XM1e+6HtzBN 7aYehA==

NSEC

1 record(s)

_8c90d4aaf6eb6a0597d8a13598c48c5d.kth.se. A NS SOA MX TXT AFSDB AAAA RRSIG NSEC DNSKEY 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:_spf.kth.se include:customers.clickdimensions.com ~all

DMARC

Configured

v=DMARC1;p=reject;pct=100;rua=mailto:dmarc-admin@kth.se

DKIM

Selector default

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkWYVVrcCLYg845ds+Mm2mLNAMzRFf4PJ9F1LhpzSO3toZQzKBTY+0T27WyJu5R/g86tZHZCIvBAdeUWvsiw9LityPGHZts7qoRPGAk6DPXWEWGJhmdcGLcxRJX7kNn1JvXpVLywnzoLRL/YYs42emR8LK1uqWZ22m2CPtNuoJ2QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

KTH - Sveriges största tekniska universitet | KTH

Description

KTH - Kungliga Tekniska högskolan - är ett av Europas ledande tekniska universitet och samlar studenter, forskare och fakultet från hela världen.

Final URL

https://www.kth.se/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.kth.se/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Hellenic Academic and Research Institutions CA

ns-vip-01.sys.kth.se

Valid from

2025-08-20T03:03:25-05:00

Valid until

2026-08-20T03:03:25-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_CHACHA20_POLY1305_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

130.237.28.40

57,36 ms

Cloudflare

1.1.1.1

130.237.28.40

156,92 ms

Quad9

9.9.9.9

130.237.28.40

179,81 ms

OpenDNS

208.67.222.222

130.237.28.40

1.175,68 ms

AdGuard

94.140.14.14

130.237.28.40

40,98 ms

IP, geolocation and ASNAssociated network information

130.237.28.40

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

mailfilter-ng-2.sunet.se

Port 25: Closed/unreachable - 121.6 ms - 
Port 465: Closed/unreachable - 4020.9 ms - 
Port 587: Closed/unreachable - 4018.7 ms -

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