lermailer.dk is a .dk domain served by 4 nameservers (ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org and 1 more). It was registered on 6 July 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.247.66.44 is hosted by Rackhosting.com ApS (AS31590) in Denmark. Mail is handled by mailfilter0.rackhosting.com, mailfilter1.rackhosting.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 77.247.66.44 | 3600s | — | AS31590 | Rackhosting.com ApS | 77.247.64.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | proxy.ghop.dk |
| 🔶 Autoconfig | proxy.ghop.dk |
| TXT Record |
|---|
| JMrOlcGQNAspls5nu9s5NYRDi3+netIuh03e/UBW9lqctvbFERuAR+MOv9+mVBbU9NHJh97bchzS9noaOY5Ssg== |
| MS=ms80299711 |
| MS=ms98559197 |
| v=spf1 include:spf.rackhosting.com -all |
| Policy | Record (lermailer.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.rackhosting.com -all |
| Policy | Record (_dmarc.lermailer.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=reject; fo=1; adkim=s; aspf=s; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www CNAME | proxy.ghop.dk (all on ghop.dk) |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.lermailer.dk | proxy.ghop.dk |
| 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 | 1 |
| Primary NS (MNAME) | ns1-05.azure-dns.com |
| Responsible (RNAME) | domain@sweco.se |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | InterNetX GmbH |
| Registered | 2010-07-06 |
| Expires | 2027-07-31 (285d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 14:30:30 | 1228ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-25 03:00:36 | 793ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-14 16:19:06 | 761ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-25 16:26:44 | 757ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-02 23:34:31 | 1540ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-25 03:25:07 shown | 1345ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-21 05:00:53 | 1014ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 05:01:36 | 788ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 22:12:54 | 1584ms | 4 NS 1 A 2 MX | 🔓 Insecure |