boligkvarter.dk is a .dk domain served by 2 nameservers (amit.ns.cloudflare.com, melissa.ns.cloudflare.com). It was registered on 10 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.81 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.20.81 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.191.252 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| 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 | 104.21.20.81 |
| 🔶 Autoconfig | 104.21.20.81 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:bffc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:1451 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.20.81,172.67.191.252 ech=AEX+DQBBwQAgACA5FkIC2/uTYL/Ii+8pIx1PVBxAb133+aqQgOafcAf1cwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:bffc,2606:4700:3037::6815:1451 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (boligkvarter.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| www | 104.21.20.81 172.67.191.252 2606:4700:3034::ac43:bffc 2606:4700:3037::6815:1451 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network boligkvarter.dk: 104.21.20.81 172.67.191.252 2606:4700:3034::ac43:bffc 2606:4700:3037::6815:1451 (AS13335) www.boligkvarter.dk: 104.21.20.81 172.67.191.252 2606:4700:3034::ac43:bffc 2606:4700:3037::6815:1451 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| 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… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2416986887 |
| Primary NS (MNAME) | amit.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2026-02-10 |
| Expires | 2027-02-09 (106d) |
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 |
|---|---|---|---|
| 2026-10-19 09:58:14 | 1013ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-17 07:30:42 | 2125ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-09 20:39:30 shown | 2771ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-06 18:13:11 | 451ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-30 16:35:13 | 1323ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 13:08:19 | 881ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-26 17:31:09 | 834ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-22 22:34:10 | 1842ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-18 20:00:15 | 7766ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-17 17:43:45 | 1064ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-16 11:41:57 | 3531ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-09 01:47:41 | 1021ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-29 11:09:02 | 1078ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-07 05:05:58 | 8876ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-27 15:03:02 | 1929ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-21 04:36:22 | 675ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 22:37:06 | 1015ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 15:44:55 | 418ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-16 15:40:50 | 638ms | 2 NS 2 A 1 MX | 🔒 Secure |