b-nielsen.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 27 May 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.168.85.142 is hosted by Amazon.com, Inc. (AS16509) in United Kingdom. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. 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 |
|---|---|---|---|---|---|---|---|
| 18.168.85.142 | 600s | ec2-18-168-85-142.eu-west-2.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 18.168.0.0/14 | 🇬🇧 United Kingdom | City of London |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | tmbn-mail.remoteapp.dk |
| TXT Record |
|---|
| MS=ms95367206 |
| v=spf1 ip4:18.168.85.142 include:_spf.xtracon.dk include:spf-esec.heimdalsecurity.com include:relay.mailchannels.net include:spf.protection.outlook.com -all |
| Policy | Record (b-nielsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:18.168.85.142 include:_spf.xtracon.dk include:spf-esec.heimdalsecurity.com include:relay.mailchannels.net include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.b-nielsen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:dmarc-reports@b-nielsen.dk; ruf=mailto:dmarc-reports@b-nielsen.dk |
| www | 18.168.85.142 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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 |
|---|---|---|
| selector1 | selector1-bnielsen-dk0c._domainkey.bnielsen.p-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-bnielsen-dk0c._domainkey.bnielsen.p-v1.dkim.mail.microsoft | 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: 4/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026082000 |
| 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 | Simply.com A/S |
| Registered | 1998-05-27 |
| Expires | 2027-06-30 (247d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 06:40:16 | 1120ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 11:45:20 | 896ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 18:52:36 | 748ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 05:16:13 | 2300ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 03:40:22 | 1776ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 03:21:05 shown | 2881ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 17:17:12 | 772ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 03:49:03 | 921ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 00:08:51 | 3365ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 23:24:35 | 1095ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 13:57:21 | 988ms | 4 NS 1 A 2 MX | 🔒 Secure |