ciuud.dk

Records from scan: 2026-10-16 04:44:32 · 2084ms total · last checked 2026-10-17 06:13 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ciuud.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 26 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.73.86 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by ciuud-dk.mail.protection.outlook.com. 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.

🖥️ Nameservers#

2 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
lucy.ns.cloudflare.com	108.162.192.133 172.64.32.133 173.245.58.133 2606:4700:50::adf5:3a85 2803:f800:50::6ca2:c085 2a06:98c1:50::ac40:2085	lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
micah.ns.cloudflare.com	108.162.193.206 172.64.33.206 173.245.59.206 2606:4700:58::adf5:3bce 2803:f800:50::6ca2:c1ce 2a06:98c1:50::ac40:21ce	micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.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 118ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.73.86	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.142.9	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 154ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ciuud-dk.mail.protection.outlook.com	2a01:111:f403:ca09::22 2a01:111:f403:ca38::8 2a01:111:f403:ca38::a 2a01:111:f403:ca48::a 52.101.103.39 52.101.68.12 52.101.73.145 52.101.91.159	mail-am7pr02cu00302.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-matpr04cu00207.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 → 40.99.157.24

🔷 AAAA Records (IPv6)#

2 records 102ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4956	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8e09	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 97ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.73.86,172.67.142.9 ech=AEX+DQBBnQAgACCMPwA5JysGqGnr3N3dIq7P8Zr8Tp3/o3rhlD4v8wXVFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4956,2606:4700:3033::ac43:8e09

📝 TXT Records#

3 records 219ms

TXT Record
adobe-idp-site-verification=f695554e09e7a020a9ce2256fa66d5703a85ba16063325d6c50fe8849454b882
MS=ms69484995
v=spf1 mx ip4:87.54.10.198 ip4:195.181.8.22 ip4:5.35.250.126 mx:post.tietgen.dk ip4:80.63.55.2 include:spf.protection.outlook.com include:_spf.presscloud.com ~all

✉️ SPF#

Policy	Record (ciuud.dk)
~all (soft fail)	v=spf1 mx ip4:87.54.10.198 ip4:195.181.8.22 ip4:5.35.250.126 mx:post.tietgen.dk ip4:80.63.55.2 include:spf.protection.outlook.com include:_spf.presscloud.com ~all

📨 DMARC#

Policy	Record (_dmarc.ciuud.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:af9f5967f96d4a5db732ee6c232b61da@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#

checked 2026-10-16 04:44:32

www	104.21.73.86 172.67.142.9 2606:4700:3030::6815:4956 2606:4700:3033::ac43:8e09 (AS13335) (address records, no CNAME)
www vs bare domain	Same network ciuud.dk: 104.21.73.86 172.67.142.9 2606:4700:3030::6815:4956 2606:4700:3033::ac43:8e09 (AS13335) www.ciuud.dk: 104.21.73.86 172.67.142.9 2606:4700:3030::6815:4956 2606:4700:3033::ac43:8e09 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u16980133.wl134.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u16980133.wl134.sendgrid.net	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: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

219ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

25ms

Field	Value
Serial	2417453507
Primary NS (MNAME)	lucy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 15:50:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-02-26
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

98ms

118ms

154ms

AAAA

102ms

TXT

219ms

CAA

129ms

HTTPS

97ms

TLSA

273ms

SOA

25ms

MTA-STS

133ms

DNSSEC

219ms

SRV

329ms

Total

2084ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 04:44:32 shown	2084ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-29 16:19:35	865ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 21:14:32	10216ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-24 21:55:53	869ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-21 03:56:52	894ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-17 13:14:26	1961ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-06 20:42:09	2564ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-18 15:28:14	3819ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-07 13:21:00	3300ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-20 00:40:26	9615ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-14 21:18:41	9396ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-24 20:40:55	1422ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 08:45:47	962ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 13:03:55	3427ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 22:38:55	65535ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:20:48	3589ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:05:29	699ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 21:01:14	730ms	2 NS 2 A 1 MX	🔒 Secure