nielsen-soerensen.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, hayes.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.223 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by localhost.fl-it.net. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.20.223 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.194.181 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | 43200s | localhost.fl-it.net | 127.0.0.1 | localhost | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.194.181 |
| 🔶 Autoconfig | 172.67.194.181 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:14df | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:c2b5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.20.223,172.67.194.181 ech=AEX+DQBBYgAgACD3wh4rW/rBYc0QqQMnHPPStUngze/qsw7uZ0AzKhIkIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:14df,2606:4700:3034::ac43:c2b5 |
| TXT Record |
|---|
| v=spf1 mx ip4:193.47.191.25 ip4:193.47.191.26 ip4:193.47.191.27 -all |
| Policy | Record (nielsen-soerensen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip4:193.47.191.25 ip4:193.47.191.26 ip4:193.47.191.27 -all |
| Policy | Record (_dmarc.nielsen-soerensen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@fl-it.net; ruf=mailto:dmarc-forensic@fl-it.net; fo=1; |
| www | 104.21.20.223 172.67.194.181 2606:4700:3032::6815:14df 2606:4700:3034::ac43:c2b5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network nielsen-soerensen.dk: 104.21.20.223 172.67.194.181 2606:4700:3032::6815:14df 2606:4700:3034::ac43:c2b5 (AS13335) www.nielsen-soerensen.dk: 104.21.20.223 172.67.194.181 2606:4700:3032::6815:14df 2606:4700:3034::ac43:c2b5 (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| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417038849 |
| Primary NS (MNAME) | bonnie.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 19:18:13 shown | 830ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-26 09:15:24 | 9618ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 17:49:35 | 742ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-17 10:02:51 | 1508ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-10 09:17:54 | 1444ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-03 08:45:50 | 694ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-22 22:56:35 | 1817ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-31 13:09:34 | 1408ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-19 02:38:24 | 1898ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-09 01:31:24 | 2178ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-05 18:45:56 | 3491ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-27 07:18:29 | 1005ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-26 23:31:33 | 1742ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 13:40:26 | 2322ms | 2 NS 2 A 1 MX | 🔒 Secure |