langkaer.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.66.84.59 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx12.comendosystems.com, mx6.comendosystems.net. The zone is of unknown DNSSEC status, 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 |
|---|---|---|---|
| ns.efif.dk | 195.254.168.23 | ns.efif.dk | AS51073 Aarhus Business College |
| ns2.efif.dk | 195.254.168.12 | ns2.efif.dk | AS51073 Aarhus Business College |
| ns3.efif.dk | 20.23.170.35 | — | AS8075 Microsoft Corporation |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.66.84.59 | 300s | — | AS47292 | Sentia Denmark A/S | 77.66.80.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx12.comendosystems.com | 192.162.219.155 2a01:77c0:1619:4101:d99:c22:fb4d:290e |
mx41.electric.net mx10.electric.net |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| 20 | 300s | mx6.comendosystems.net | 192.162.219.49 | mx41.electric.net | AS16509 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=HtS83kX62g4nPUrXGy5a2y7ZODPyOoh19RfU9Uy5vZU |
| MS=ms35836709 |
| MS=ms87502097 |
| SOA=1708684531 |
| v=spf1 -all |
| Policy | Record (langkaer.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.langkaer.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:62b3331b5a414@dmarc.centerasecurity.com; |
| www | 77.66.84.59 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'langkaer.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2024092230 |
| Primary NS (MNAME) | ns.efif.dk |
| Responsible (RNAME) | dns-zc@efif.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1998-02-16 |
| Expires | 2027-03-31 (160d) |
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 |
|---|---|---|---|
| 2026-10-21 06:43:40 shown | 769ms | 3 NS 1 A 2 MX | ❓ Unknown |
| 2026-10-19 11:47:31 | 1457ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-18 11:31:38 | 952ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-17 10:31:48 | 4366ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-16 09:32:23 | 9554ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-15 08:22:22 | 40542ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-10 03:26:59 | 781ms | 3 NS 1 A 2 MX | ❓ Unknown |
| 2026-10-08 12:01:15 | 1078ms | 3 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-10-02 06:38:49 | 802ms | 3 NS 1 A 2 MX | ❓ Unknown |
| 2026-10-01 06:37:56 | 797ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 14:50:24 | 4244ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 09:17:44 | 1401ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 07:01:15 | 2105ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-22 08:25:17 | 2833ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-16 23:02:32 | 1285ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-11 06:52:31 | 1485ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-09 01:36:14 | 1356ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-07 00:49:52 | 1472ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 07:32:51 | 1259ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 01:21:28 | 670ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-22 09:01:23 | 13676ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-20 07:53:30 | 3048ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-14 15:02:23 | 5620ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-09 03:27:04 | 3031ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-03 01:03:25 | 11048ms | 3 NS 1 A 2 MX | 🔒 Secure |