sahlmann.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 2 December 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 62.66.164.154 is hosted by Telenor A/S (AS9158) in Denmark. Mail is handled by mail.7a.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 |
|---|---|---|---|---|---|---|---|
| 62.66.164.154 | 3600s | 062066164154.static.telenor.dk | AS9158 | Telenor A/S | 62.66.0.0/16 | 🇩🇰 Denmark | Brønshøj |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mail.7a.dk | 62.66.164.154 | 062066164154.static.telenor.dk | AS9158 Telenor A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 62.66.164.154 |
| 🔶 Autoconfig | 62.66.164.154 |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (sahlmann.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.sahlmann.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 188.228.54.119 (AS214875) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u27356220.wl221.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u27356220.wl221.sendgrid.net | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sahlmann.dk | 7f5eaf5f-372b-4d59-9a62-cc4197cbe011.c-8a1f.tx.auth.certifytheweb.com |
| TXT | 7f5eaf5f-372b-4d59-9a62-cc4197cbe011.c-8a1f.tx.auth.certifytheweb.com | esy1UUl1a3QSvDw9irJNbdZgCz976OpWl04L_WCphYk |
| TXT | 7f5eaf5f-372b-4d59-9a62-cc4197cbe011.c-8a1f.tx.auth.certifytheweb.com | n0RX1ExZVbWLiNrTTDuSdwJxQheaaUak4tH_Oi17c28 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2015-12-02 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:29:26 | 973ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 17:36:56 | 1200ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 05:32:37 | 1061ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 17:52:07 | 1207ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 17:50:22 | 1190ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 14:28:31 | 1085ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 13:51:12 | 1111ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 15:42:48 | 1243ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-30 13:54:28 | 958ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-28 21:17:54 | 1855ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-06 01:23:35 | 2357ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 10:00:45 | 1265ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 04:04:22 shown | 1338ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 16:10:30 | 940ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:53:44 | 648ms | 4 NS 1 A 1 MX | 🔒 Secure |