citi.dk

📜 Historical scan 2026-07-17 23:47:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

citi.dk is a .dk domain served by 2 nameservers (ns1.nsroot1.com, ns2.nsroot2.com). It was registered on 7 June 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, 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#

2 records 95ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nsroot1.com	156.154.64.172	pdns172.ultradns.com	AS12008 Vercara, LLC
ns2.nsroot2.com	193.108.91.190	ns1-190.akam.net	AS21342 Akamai International B.V.

🌍 A Records#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 171ms

TXT Record
v=spf1 a:mail.citigroup.com -all

✉️ SPF#

Policy	Record (citi.dk)
-all (hard fail)	v=spf1 a:mail.citigroup.com -all

📨 DMARC#

Policy	Record (_dmarc.citi.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.reports.rua@citi.com

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

3 records 69ms

Flags	Tag	Value
128	iodef	mailto:CAADNS@citi.com
128	issue	digicert.com
128	issuewild	;

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 04:23:10

www	NXDOMAIN
www vs bare domain	Neither resolves citi.dk: no address www.citi.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

150ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2021100313
Primary NS (MNAME)	ns1.nsroot1.com
Responsible (RNAME)	hostmaster@citi.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-18 04:50:49

Field	Value
Registrar	MarkMonitor Inc.
Registered	1998-06-07
Expires	2027-06-30 (254d)

🔗 Same registrant#

2 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
citibusiness.dk	MarkMonitor Inc.
citigroup.dk	MarkMonitor Inc.

📋 WHOIS#

⏱️ Lookup Timing#

95ms

70ms

51ms

AAAA

67ms

TXT

171ms

CAA

69ms

HTTPS

62ms

TLSA

82ms

SOA

0ms

MTA-STS

72ms

DNSSEC

150ms

SRV

278ms

Total

1985ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 04:23:09	1739ms	2 NS 0 A 0 MX	🔓 Insecure
2026-10-17 03:54:43	1964ms	2 NS 0 A 0 MX	🔓 Insecure
2026-10-09 13:36:45	748ms	2 NS 0 A 0 MX	🔓 Insecure
2026-10-09 12:39:39	1801ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-30 23:29:19	539ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-30 00:42:43	539ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-17 23:47:47 shown	1985ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-05 21:39:42	2205ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-05 20:30:49	1018ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-04 17:50:34	1723ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-25 23:39:41	1763ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-25 05:04:55	857ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-16 20:55:08	428ms	2 NS 0 A 0 MX	🔓 Insecure