letdata.dk

📜 Historical scan 2026-06-20 07:48:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

letdata.dk is a .dk domain served by 2 nameservers (arturo.ns.cloudflare.com, lovisa.ns.cloudflare.com). It was registered on 14 November 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.34 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by letdata-dk.mail.protection.outlook.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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
arturo.ns.cloudflare.com	108.162.195.216 162.159.44.216 172.64.35.216 2606:4700:58::a29f:2cd8 2803:f800:50::6ca2:c3d8 2a06:98c1:50::ac40:23d8	arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lovisa.ns.cloudflare.com	108.162.194.39 162.159.38.39 172.64.34.39 2606:4700:50::a29f:2627 2803:f800:50::6ca2:c227 2a06:98c1:50::ac40:2227	lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.ns.cloudflare.com lovisa.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 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.34	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.174.235	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	letdata-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca09::5 2a01:111:f403:ca09::b 52.101.68.18 52.101.68.3 52.101.73.28 52.101.73.30	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig	104.21.31.34

🔷 AAAA Records (IPv6)#

2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:1f22	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:aeeb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 28ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.34,172.67.174.235 ech=AEX+DQBBHAAgACC+SFRaafkH82GZ3ptOKCPrsK30Bnjo3vG5v3A+He0jQQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1f22,2606:4700:3036::ac43:aeeb

📝 TXT Records#

2 records 209ms

TXT Record
MS=ms13752761
v=spf1 include:spf.antispamcloud.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (letdata.dk)
~all (soft fail)	v=spf1 include:spf.antispamcloud.com include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.letdata.dk)
p=quarantine	v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 2026-10-09 14:55:32

www	104.21.31.34 172.67.174.235 2606:4700:3033::6815:1f22 2606:4700:3034::ac43:aeeb (AS13335) (address records, no CNAME)
www vs bare domain	Same network letdata.dk: 104.21.31.34 172.67.174.235 2606:4700:3033::6815:1f22 2606:4700:3034::ac43:aeeb (AS13335) www.letdata.dk: 104.21.31.34 172.67.174.235 2606:4700:3033::6815:1f22 2606:4700:3034::ac43:aeeb (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

146ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2405818791
Primary NS (MNAME)	arturo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 12:49:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-11-14
Expires	2026-11-30 (40d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

41ms

51ms

46ms

AAAA

50ms

TXT

209ms

CAA

44ms

HTTPS

28ms

TLSA

251ms

SOA

47ms

MTA-STS

71ms

DNSSEC

146ms

SRV

119ms

Total

814ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 14:55:32	3097ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-05 09:35:58	1610ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-04 09:29:32	2744ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 09:10:27	1047ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 15:33:21	2568ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 21:10:12	959ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 20:54:22	1706ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 09:10:13	2343ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 08:56:11	1448ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 07:01:34	1699ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 04:56:13	1920ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 20:20:31	1531ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 05:22:27	3993ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 22:48:07	2871ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 12:00:43	2022ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-02 18:25:48	10161ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-26 17:38:03	2477ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-18 06:28:53	4126ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-06 21:09:45	12879ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-03 21:12:14	2895ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 20:55:54	1588ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 04:51:08	1091ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 07:48:35 shown	814ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 13:41:12	3272ms	2 NS 2 A 1 MX	🔓 Insecure