citi.dk is a .dk domain served by 2 nameservers (ns1.nsroot1.com, ns2.nsroot2.com). It 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.
| 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 | a1-190.akam.net | AS21342 Akamai International B.V. |
| TXT Record |
|---|
| v=spf1 a:mail.citigroup.com -all |
| Policy | Record (citi.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:mail.citigroup.com -all |
| Policy | Record (_dmarc.citi.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.reports.rua@citi.com |
| Flags | Tag | Value |
|---|---|---|
| 128 | iodef | mailto:CAADNS@citi.com |
| 128 | issue | digicert.com |
| 128 | issuewild | ; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves citi.dk: no address www.citi.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2021100113 |
| Primary NS (MNAME) | ns1.nsroot1.com |
| Responsible (RNAME) | hostmaster@citi.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| 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 | 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 shown | 857ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:55:08 | 428ms | 2 NS 0 A 0 MX | 🔓 Insecure |