syskon.dk

📜 Historical scan 2026-07-26 09:08:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

syskon.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 27 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 150.171.109.198 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by syskon-dk.y-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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#

4 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
150.171.109.198	10s	—	AS8075	Microsoft Corporation	150.171.64.0/18	🇺🇸 United States	—

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	7200s	syskon-dk.y-v1.mx.microsoft	2a01:111:f403:ca04::5 2a01:111:f403:ca04::b 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 52.101.68.27 52.101.68.29 52.101.68.3 52.101.73.26	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 52.98.252.104

🔷 AAAA Records (IPv6)#

1 records 55ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2603:1061:14:c5::1	10s	—	AS8075	Microsoft Corporation	2603:1060:0:0:0:0:0:0/31	🇺🇸 United States	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 115ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	0	5061	access.syskon.dk

📝 TXT Records#

3 records 236ms

TXT Record
have-i-been-pwned-verification=dweb_x9h2xjrux39ivz2e7l1c1h0p
sVjj0ZnRJh8G+6YsJq9Y/4D6FEmiLF+AioG10300Ghc=
v=spf1 ip4:212.98.75.14 a:c.spf.service-now.com include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (syskon.dk)
-all (hard fail)	v=spf1 ip4:212.98.75.14 a:c.spf.service-now.com include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.syskon.dk)
p=reject	v=DMARC1; p=reject; sp=reject; aspf=s; adkim=s;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 20:09:16

www CNAME	url-redirect-byg6c4heh5ggfvcy.a03.azurefd.net (all on azurefd.net) → 150.171.109.194 2603:1061:14:c0::1 (AS8075)
www vs bare domain	Same network syskon.dk: 150.171.109.198 2603:1061:14:c4::1 (AS8075) www.syskon.dk: 150.171.109.194 2603:1061:14:c0::1 (AS8075)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

8 records 83ms

Service / Owner	Type	Cert association
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.syskon-dk.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

220ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026031724
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-17 20:34:09

Field	Value
Registrar	Eurodns S.A
Registered	1999-12-27
Expires	2026-12-31 (73d)

🔗 Same registrant#

18 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
bitsprinter.dk	Eurodns S.A
cloudpabx.dk	Eurodns S.A
content-ix.dk	Eurodns S.A
contentconnect.dk	Eurodns S.A
contentix.dk	Eurodns S.A
gcmon.dk	Eurodns S.A
gcsn.dk	Eurodns S.A
global-connect.dk	Eurodns S.A
globalconnect.dk	Eurodns S.A
globalconnectcloud.dk	Eurodns S.A
globalhosting.dk	Eurodns S.A
iptelefonen.dk	Eurodns S.A
myconnect.dk	Eurodns S.A
nianet.dk	Eurodns S.A
nordiclight.dk	Eurodns S.A
onefiber.dk	Eurodns S.A
wirelessconnect.dk	Eurodns S.A
zensystems.dk	Eurodns S.A

📋 WHOIS#

⏱️ Lookup Timing#

49ms

48ms

54ms

AAAA

55ms

TXT

236ms

CAA

58ms

HTTPS

58ms

TLSA

83ms

SOA

0ms

MTA-STS

70ms

DNSSEC

220ms

SRV

115ms

Total

1457ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 20:09:16	1557ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-09 09:12:30	687ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-08 21:32:23	1018ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-07 21:30:11	1350ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 18:22:30	822ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-24 01:20:54	1267ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-19 04:30:05	2540ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-04 23:05:47	9619ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-03 10:03:14	1072ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-31 14:53:51	1384ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 13:08:56	914ms	4 NS 2 A 1 MX	🔒 Secure
2026-08-20 08:52:30	1673ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-15 02:21:21	1550ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-13 19:07:25	1626ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-29 11:56:39	3176ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-27 09:28:46	9364ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-26 09:08:05 shown	1457ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-25 08:44:52	17174ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-08 13:49:05	9380ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-07 03:22:59	2820ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-26 09:55:00	1009ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-20 08:52:20	896ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-19 06:16:02	3392ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:59:28	913ms	4 NS 1 A 1 MX	🔒 Secure