cisco.dk is a .dk domain served by 7 nameservers (ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 more). It was registered on 22 May 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 72.163.4.154 is hosted by CISCO SYSTEMS, INC. (AS109) in United States. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.markmonitor.com | — | — | — |
| ns2.markmonitor.com | — | — | — |
| ns3.markmonitor.com | — | — | — |
| ns4.markmonitor.com | — | — | — |
| ns5.markmonitor.com | — | — | — |
| ns6.markmonitor.com | — | — | — |
| ns7.markmonitor.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 72.163.4.154 | — | redirect.cisco.com | AS109 | CISCO SYSTEMS, INC. | 72.163.0.0/16 | 🇺🇸 United States | Richardson |
| TXT Record |
|---|
| identrust_validate=/TXQ8r3E8FMEBHNe6qhoGCLPI0AtZGQEA0rRCDKsrZZ4 |
| www | 72.163.4.154 (AS109) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025010702 |
| Primary NS (MNAME) | ns1.markmonitor.com |
| Responsible (RNAME) | jguandique@cisco.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 1997-05-22 |
| Expires | 2027-06-30 (255d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:27:10 | 2505ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-30 04:56:22 | 2983ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-25 19:38:03 | 2262ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-15 20:19:50 | 2147ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-03 11:19:38 | 2538ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 22:56:24 | 1439ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:55:05 shown | 647ms | 7 NS 1 A 0 MX | 🔓 Insecure |