firstlevel.dk is a .dk domain served by 2 nameservers (blair.ns.cloudflare.com, frank.ns.cloudflare.com). It was registered on 20 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.58.124 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by firstlevel-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.58.124 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.204.10 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3037::6815:3a7c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:cc0a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.58.124,172.67.204.10 ech=AEX+DQBBGgAgACDXtcrNIgCrUouNh2NzXiayHDq57GWhVUm3+1b57TVAFQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:3a7c,2606:4700:3037::ac43:cc0a |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 a include:spf.protection.outlook.com ip4:195.184.115.2 ip4:193.104.246.168 -all |
| Policy | Record (firstlevel.dk) |
|---|---|
| -all (hard fail) | v=spf1 a include:spf.protection.outlook.com ip4:195.184.115.2 ip4:193.104.246.168 -all |
| www | 188.114.96.1 188.114.97.1 2606:4700:3037::6815:3a7c 2606:4700:3037::ac43:cc0a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network firstlevel.dk: 104.21.58.124 172.67.204.10 2606:4700:3037::6815:3a7c 2606:4700:3037::ac43:cc0a (AS13335) www.firstlevel.dk: 188.114.96.1 188.114.97.1 2606:4700:3037::6815:3a7c 2606:4700:3037::ac43:cc0a (AS13335) |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| 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 | 2416510716 |
| Primary NS (MNAME) | blair.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA |
| Registered | 2009-01-20 |
| Expires | 2027-01-31 (103d) |
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 |
|---|---|---|---|
| 2026-10-04 09:57:38 shown | 881ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 00:05:30 | 1807ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-05 22:34:33 | 1725ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-24 16:17:03 | 10382ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 04:51:05 | 5054ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 10:13:44 | 1278ms | 2 NS 2 A 1 MX | 🔓 Insecure |