henrikfredborg.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 11 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 152.53.228.135 is hosted by netcup GmbH (AS197540) in Germany. Mail is handled by mail.henrikfredborg.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 |
|---|---|---|---|---|---|---|---|
| 152.53.228.135 | 3600s | v2202508102011369980.megasrv.de | AS197540 | netcup GmbH | 152.53.224.0/21 | 🇩🇪 Germany | Nuremberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.henrikfredborg.dk | 152.53.228.135 | v2202508102011369980.megasrv.de | AS197540 netcup GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.henrikfredborg.dk → 152.53.228.135 |
| 🔶 Autoconfig | mail.henrikfredborg.dk → 152.53.228.135 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imaps._tcp | 0 | 1 | 993 | mail.henrikfredborg.dk |
| TXT Record |
|---|
| v=spf1 +a +mx +a:v2202508102011369980.megasrv.de -all |
| Policy | Record (henrikfredborg.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +a:v2202508102011369980.megasrv.de -all |
| Policy | Record (_dmarc.henrikfredborg.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s; aspf=s |
| www | 152.53.228.135 (AS197540) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.henrikfredborg.dk | CLXSRolVw3BVaFLlMsk19SgbNGNetlEGgFamtD2_l5s |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025120700 |
| 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 | dns.services ApS |
| Registered | 2001-07-11 |
| Expires | 2027-09-30 (344d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 15:18:49 | 705ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 15:02:34 | 538ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 02:06:08 | 805ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 12:40:01 | 951ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 05:07:51 | 2811ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 15:21:10 | 4100ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-24 00:47:52 | 729ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 23:35:09 shown | 9985ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:19:31 | 2659ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:12:22 | 651ms | 4 NS 1 A 1 MX | 🔒 Secure |