post-it.dk is a .dk domain served by 2 nameservers (a.ns.3m.com, b.ns.3m.com). It was registered on 28 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.133.80.45 is hosted by Amazon.com, Inc. (AS16509) in United States. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| a.ns.3m.com | 162.159.8.174 2400:cb00:2049:1::a29f:8ae |
— — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| b.ns.3m.com | 173.245.58.19 2400:cb00:2049:1::adf5:3a13 |
— — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (post-it.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.post-it.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; |
| www CNAME | svs.3m.com (all on 3m.com) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417180371 |
| Primary NS (MNAME) | a.ns.3m.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2004-08-28 |
| Expires | 2027-08-31 (316d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 17:48:33 shown | 1119ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-04 10:22:17 | 1134ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-24 04:44:12 | 784ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 19:40:59 | 1745ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-19 01:22:28 | 775ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-13 18:44:04 | 1631ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-07-20 12:17:17 | 703ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 05:21:11 | 2030ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-25 01:37:37 | 2855ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 13:47:07 | 1027ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 21:25:46 | 757ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 14:38:19 | 1408ms | 2 NS 2 A 0 MX | 🔓 Insecure |