backop.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.193.213.10 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 141.193.213.10 | — | — | AS209242 | Cloudflare London, LLC | 141.193.213.0/24 | 🇺🇸 United States | — |
| 141.193.213.11 | — | — | AS209242 | Cloudflare London, LLC | 141.193.213.0/24 | 🇺🇸 United States | — |
| TXT Record |
|---|
| google-site-verification=INWvpIiIT9gUOsxNZkgBf-FcH6FX5LLBoWkzkMj0RrI |
| v=spf1 include:send.heysender.com ~all |
| Policy | Record (backop.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:send.heysender.com ~all |
| www | 141.193.213.10 141.193.213.11 (AS209242) (address records, no CNAME) |
| www vs bare domain | Same network backop.dk: 141.193.213.10 141.193.213.11 (AS209242) www.backop.dk: 141.193.213.10 141.193.213.11 (AS209242) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026052004 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-11-03 |
| Expires | 2026-11-02 (14d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 00:51:29 | 1000ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 16:05:36 | 1428ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 15:58:44 | 1116ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 16:12:03 | 557ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 18:39:53 | 9560ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 16:36:07 | 2582ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 06:29:44 | 2576ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-28 09:44:38 | 768ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-10 00:46:35 | 1656ms | 3 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-21 17:43:29 | 1056ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 23:29:44 | 950ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 23:28:04 | 1162ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 13:59:20 shown | 778ms | 2 NS 2 A 1 MX | 🔒 Secure |