dsb.dk

📜 Historical scan 2026-10-08 23:34:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dsb.dk is a .dk domain served by 2 nameservers (dns.dsb.dk, ns.dsb.dk). It was registered on 23 April 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.73.205.146 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by dsb-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 514ms

Nameserver	IP addresses	PTR	ASN / ISP
dns.dsb.dk	193.28.147.132	—	AS41746 DSB (SOV)
ns.dsb.dk	193.28.147.131	—	AS41746 DSB (SOV)

🌍 A Records#

1 records 105ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.73.205.146	120s	—	AS8075	Microsoft Corporation	20.64.0.0/10	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 93ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	dsb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca48::a 2a01:111:f403:ca48::c 52.101.103.137 52.101.103.140 52.101.209.153 52.101.209.31	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 572ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 575ms

Flags	Tag	Value
0	issue	amazontrust.com
0	issue	awstrust.com
0	issue	digicert.com
0	issue	globalsign.com
0	issue	letsencrypt.org
0	issuewild	amazontrust.com
0	issuewild	awstrust.com
0	issuewild	digicert.com
0	issuewild	globalsign.com
0	issuewild	letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 21:31:06

www CNAME	dsbdk.azurefd.net (all on azurefd.net) → 150.171.109.194 2603:1061:14:c1::1 (AS8075)
www vs bare domain	Same network dsb.dk: 20.73.205.146 (AS8075) www.dsb.dk: 150.171.109.194 2603:1061:14:c1::1 (AS8075)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u7018052.wl053.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u7018052.wl053.sendgrid.net	RSA · ~2048 bit
selector1	selector1-dsb-dk._domainkey.dsbintranet.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-dsb-dk._domainkey.dsbintranet.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

288ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

113ms

Field	Value
Serial	2026100621
Primary NS (MNAME)	ns.dsb.dk
Responsible (RNAME)	manager@dsb.dk
Refresh	1800s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	5400s

📋 Registration#

WHOIS fetched 2026-10-13 17:20:36

Field	Value
Registrar	Abion AB
Registered	1996-04-23
Expires	2031-06-30 (1717d)

🔗 Same registrant#

24 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
1415.dk	Abion AB
danmarkspuls.dk	Abion AB
dsb-1.dk	Abion AB
dsb-danmark.dk	Abion AB
dsb-plus.dk	Abion AB
dsb-skolerejser.dk	Abion AB
dsb-stog.dk	Abion AB
dsbejendomme.dk	Abion AB
dsbeta.dk	Abion AB
dsbvorestog.dk	Abion AB
dsbwildcard.dk	Abion AB
iamlegend.dk	Abion AB
inter-rail.dk	Abion AB
koermit.dk	Abion AB
landetspuls.dk	Abion AB
orangebillet.dk	Abion AB
pendlerkort.dk	Abion AB
s-more.dk	Abion AB
smore.dk	Abion AB
sundtoget.dk	Abion AB
trygstog.dk	Abion AB
udogse.dk	Abion AB
workplus.dk	Abion AB
www-dsb.dk	Abion AB

📋 WHOIS#

⏱️ Lookup Timing#

514ms

105ms

93ms

AAAA

101ms

TXT

32242ms

CAA

575ms

HTTPS

125ms

TLSA

994ms

SOA

113ms

MTA-STS

182ms

DNSSEC

288ms

SRV

572ms

Total

53329ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 21:31:06	1748ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 17:17:36	1575ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 17:05:56	1985ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 14:20:19	1528ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 11:16:33	1575ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 09:16:15	2067ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 23:34:54 shown	53329ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 23:20:15	2005ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 23:16:05	1875ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 20:22:27	2363ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 19:58:53	2254ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 19:51:24	1225ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 19:49:18	1168ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 19:48:07	1154ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 19:36:29	1654ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 19:20:24	1729ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 19:11:23	1006ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 18:49:31	1348ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 18:35:39	1483ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 18:17:27	1255ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 18:09:10	1159ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 16:38:42	1589ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 09:55:00	1413ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 20:59:29	2143ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 04:16:33	2513ms	2 NS 1 A 1 MX	🔒 Secure