sdnielsen.dk

📜 Historical scan 2026-10-07 23:26:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sdnielsen.dk is a .dk domain served by 2 nameservers (brianna.ns.cloudflare.com, trey.ns.cloudflare.com). It was registered on 3 January 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.79.82 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, publishes a 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.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
brianna.ns.cloudflare.com	108.162.192.245 172.64.32.245 173.245.58.245 2606:4700:50::adf5:3af5 2803:f800:50::6ca2:c0f5 2a06:98c1:50::ac40:20f5	brianna.ns.cloudflare.com brianna.ns.cloudflare.com brianna.ns.cloudflare.com brianna.ns.cloudflare.com brianna.ns.cloudflare.com brianna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
trey.ns.cloudflare.com	108.162.193.242 172.64.33.242 173.245.59.242 2606:4700:58::adf5:3bf2 2803:f800:50::6ca2:c1f2 2a06:98c1:50::ac40:21f2	trey.ns.cloudflare.com trey.ns.cloudflare.com trey.ns.cloudflare.com trey.ns.cloudflare.com trey.ns.cloudflare.com trey.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.79.82	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.169.102	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	smtp.google.com	108.177.14.26 108.177.14.27 209.85.233.26 209.85.233.27 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b 74.125.131.27	lt-in-f26.1e100.net lt-in-f27.1e100.net lr-in-f26.1e100.net lr-in-f27.1e100.net lr-in-x1a.1e100.net lr-in-f26.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net lt-in-f26.1e100.net lt-in-x1a.1e100.net lt-in-x1b.1e100.net lt-in-f27.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 49ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3037::6815:4f52	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:a966	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.79.82,172.67.169.102 ech=AEX+DQBBmAAgACCP/tRS9t3KHbLVCTHxHhralljTtSvfpCt2ZhVLejBvWAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:4f52,2606:4700:3037::ac43:a966

📝 TXT Records#

5 records 182ms

TXT Record
amazon-business-verification=28c601763b26040a398a288314e01276dff5cc1276ef65c86354d5ee0263968e
anthropic-domain-verification-c17ksb=69rxm6n3uffSCRVJbMl62X3ml
google-site-verification=Jw-L0h3ok2xONuN47k8h3VgOXMiTjXsM0aUBgmDXQbI
slack-domain-verification=TJnA0BkXQcAW0RDgvj72s5QeYm2a8DcQ5Dxt8jWh
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (sdnielsen.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.sdnielsen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:a6516a75e66c4f1f86544b0f9d934e6c@dmarc-reports.cloudflare.net

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-23 02:23:45

www	104.21.79.82 172.67.169.102 2606:4700:3037::6815:4f52 2606:4700:3037::ac43:a966 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sdnielsen.dk: 104.21.79.82 172.67.169.102 2606:4700:3037::6815:4f52 2606:4700:3037::ac43:a966 (AS13335) www.sdnielsen.dk: 104.21.79.82 172.67.169.102 2606:4700:3037::6815:4f52 2606:4700:3037::ac43:a966 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~1024 bit below 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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

114ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

37ms

Field	Value
Serial	2416851730
Primary NS (MNAME)	brianna.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 23:43:10

Field	Value
Registrar	dns.services ApS
Registered	2010-01-03
Expires	2027-01-31 (100d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

36ms

AAAA

49ms

TXT

182ms

CAA

33ms

HTTPS

44ms

TLSA

114ms

SOA

37ms

MTA-STS

58ms

DNSSEC

114ms

SRV

69ms

Total

877ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 02:23:45	662ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-11 08:54:41	2133ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 23:26:26 shown	877ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-06 23:22:10	2672ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 20:43:33	676ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 10:45:12	1643ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 14:02:37	813ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 23:18:35	2777ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 22:23:37	675ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 16:37:46	3260ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-10 02:34:17	6525ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-04 14:36:33	1590ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-11 23:45:08	10432ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-07 03:28:06	2152ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 12:46:02	1111ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 10:20:16	1143ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 02:05:25	1296ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 21:08:56	1234ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 06:17:43	1161ms	2 NS 2 A 1 MX	🔓 Insecure