nortonbackup.dk is a .dk domain served by 4 nameservers (edns109.ultradns.biz, edns109.ultradns.com, edns109.ultradns.net and 1 more). It was registered on 22 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 172.184.172.140 is hosted by Microsoft Corporation (AS8075) 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.184.172.140 | 28800s | — | AS8075 | Microsoft Corporation | 172.128.0.0/10 | 🇺🇸 United States | San Jose |
| 20.223.132.252 | 28800s | — | AS8075 | Microsoft Corporation | 20.192.0.0/10 | 🇮🇪 Ireland | Dublin |
| TXT Record |
|---|
| v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all |
| Policy | Record (nortonbackup.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all |
| Policy | Record (_dmarc.nortonbackup.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email |
| www | 172.184.172.140 20.223.132.252 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network nortonbackup.dk: 172.184.172.140 20.223.132.252 (AS8075) www.nortonbackup.dk: 172.184.172.140 20.223.132.252 (AS8075) |
| 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2016070589 |
| Primary NS (MNAME) | udns1.ultradns.net |
| Responsible (RNAME) | domains@nortonlifelock.com |
| Refresh | 21600s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 2009-01-22 |
| Expires | 2027-01-31 (104d) |
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 |
|---|---|
| nortonportal.dk | MarkMonitor Inc. |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 11:44:09 shown | 511ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-26 07:22:11 | 3046ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-12 06:48:44 | 1558ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 15:21:02 | 1957ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 05:07:23 | 775ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-28 06:56:42 | 810ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 11:49:13 | 751ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 15:49:28 | 948ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 22:12:42 | 805ms | 4 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-21 13:59:56 | 949ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 06:07:56 | 1019ms | 4 NS 2 A 0 MX | 🔓 Insecure |