booking-boligeftersyn.dk is a .dk domain served by 4 nameservers (ns-1182.awsdns-19.org, ns-1640.awsdns-13.co.uk, ns-488.awsdns-61.com and 1 more). It was registered on 23 October 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.123.90.199 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 3.123.90.199 | 300s | ec2-3-123-90-199.eu-central-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 3.96.0.0/11 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 3.123.90.199 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.mailjet.com include:spf.mandrillapp.com ?all |
| Policy | Record (booking-boligeftersyn.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.mailjet.com include:spf.mandrillapp.com ?all |
| www | 3.123.90.199 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network booking-boligeftersyn.dk: 3.123.90.199 (AS16509) www.booking-boligeftersyn.dk: 3.123.90.199 (AS16509) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: ?all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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) | ns-525.awsdns-01.net |
| Responsible (RNAME) | awsdns-hostmaster@amazon.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2016-10-23 |
| Expires | 2033-10-31 (2560d) |
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 19:12:28 | 3232ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-07 10:28:56 | 2809ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-06 15:43:18 | 3719ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 17:11:29 shown | 2100ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:55:13 | 464ms | 4 NS 1 A 1 MX | 🔓 Insecure |