fjerring.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 March 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.108 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by fjerring-dk.mx1.comendosystems.com, fjerring-dk.mx2.comendosystems.net. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.108 | 3600s | webcluster2.webpod16-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | fjerring-dk.mx1.comendosystems.com | 192.162.219.255 2a01:77c0:1619:4102:a81b:80d0:e56c:edc0 |
mx41.electric.net gw2-1535.security.comendo.com |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| 20 | 3600s | fjerring-dk.mx2.comendosystems.net | 192.162.219.155 | mx41.electric.net | AS16509 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| 🔶 Autoconfig | fjerring.dk → 46.30.215.108 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:111:8067:ece8:5bff:84a0 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com ip4:109.202.140.20 ~all |
| Policy | Record (fjerring.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com ip4:109.202.140.20 ~all |
| www | 46.30.215.108 2a02:2350:5:111:8067:ece8:5bff:84a0 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network fjerring.dk: 46.30.215.108 2a02:2350:5:111:8067:ece8:5bff:84a0 (AS51468) www.fjerring.dk: 46.30.215.108 2a02:2350:5:111:8067:ece8:5bff:84a0 (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 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 | 2026101501 |
| 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 | ONE.COM A/S |
| Registered | 1997-03-24 |
| Expires | 2027-03-31 (160d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 10:16:50 shown | 894ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 16:49:25 | 1330ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 08:03:36 | 942ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 19:28:22 | 1031ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 13:19:23 | 1625ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-28 13:15:08 | 1677ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-14 23:44:35 | 1083ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-04 03:56:02 | 2864ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 10:02:42 | 1137ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-02 10:32:31 | 2735ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-29 20:28:33 | 1586ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-02 01:32:47 | 890ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 10:17:53 | 4130ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 10:04:05 | 1622ms | 2 NS 1 A 2 MX | 🔒 Secure |