borderline.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 November 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.81.157.22 is hosted by Telenor A/S (AS9158) in Denmark. Mail is handled by mail.borderline.dk. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 85.81.157.22 | 43200s | — | AS9158 | Telenor A/S | 85.80.0.0/14 | 🇩🇰 Denmark | Roskilde |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.borderline.dk | 85.81.157.22 | — | AS9158 Telenor A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 85.81.157.22 |
| 🔶 Autoconfig | 85.81.157.22 |
| TXT Record |
|---|
| v=spf1 ip4:85.81.157.22 -all |
| webmaster NIC handle BBL22-DK |
| Policy | Record (borderline.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:85.81.157.22 -all |
| Policy | Record (_dmarc.borderline.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:dmarc@borderline.dk |
| www CNAME | borderline.dk (all on borderline.dk) → 85.81.157.22 (AS9158) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · 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 | 2026091001 |
| 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 | Punktum dk A/S (direct) |
| Registered | 1998-11-05 |
| Expires | 2026-12-31 (67d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 17:10:49 | 418ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 14:02:27 | 478ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 04:33:44 | 757ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 03:51:54 | 464ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 09:20:45 | 4481ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 12:33:44 shown | 1394ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:11:02 | 887ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 16:30:20 | 8558ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 00:01:35 | 4712ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 22:34:37 | 8529ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 21:02:49 | 663ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 13:07:24 | 2351ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 08:22:37 | 654ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-20 18:34:58 | 877ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 16:09:07 | 489ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 16:05:59 | 1351ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 16:02:21 | 2735ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 16:00:26 | 548ms | 2 NS 1 A 1 MX | 🔒 Secure |