citygroup.dk

📜 Historical scan 2026-09-30 21:51:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

citygroup.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 31 October 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.20 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by citygroup-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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#

4 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.20	3600s	linux175.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	citygroup-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca09::22 2a01:111:f403:ca48::c 52.101.68.21 52.101.68.25 52.101.73.153 52.101.73.155	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 52.98.149.136
🔶 Autoconfig	93.191.156.20

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 45ms

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

📝 TXT Records#

1 records 93ms

TXT Record
v=spf1 a:mailhotel05.spamskan.dk include:spf.simply.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (citygroup.dk)
~all (soft fail)	v=spf1 a:mailhotel05.spamskan.dk include:spf.simply.com include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.citygroup.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-13 07:04:37

www	93.191.156.20 (AS48854) (address records, no CNAME)
www vs bare domain	Same network citygroup.dk: 93.191.156.20 (AS48854) www.citygroup.dk: 93.191.156.20 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

108ms

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

🏷️ SOA#

26ms

Field	Value
Serial	2026093000
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-09-30 22:06:32

Field	Value
Registrar	Simply.com A/S
Registered	2014-10-31
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

27ms

39ms

AAAA

31ms

TXT

93ms

CAA

30ms

HTTPS

35ms

TLSA

613ms

SOA

26ms

MTA-STS

48ms

DNSSEC

108ms

SRV

45ms

Total

1190ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 07:04:37	944ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 21:51:42 shown	1190ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 21:40:19	840ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-27 09:35:14	2581ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-06 01:16:25	1590ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-03 16:56:34	885ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:14:18	944ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 20:55:38	2577ms	4 NS 1 A 1 MX	🔒 Secure