celus.dk

📜 Historical scan 2026-06-16 20:10:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

celus.dk is a .dk domain served by 2 nameservers (karl.ns.cloudflare.com, lady.ns.cloudflare.com). It was registered on 24 March 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.80.219 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by celus-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 143ms

Nameserver	IP addresses	PTR	ASN / ISP
karl.ns.cloudflare.com	—	—	—
lady.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 153ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.80.219	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.187.72	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 171ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	celus-dk.mail.protection.outlook.com	52.101.68.29 52.101.68.32 52.101.73.26 52.101.73.28	mail-dbapr03cu00105.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

2 records 120ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 138ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBFgAgACCwNFLgRRTjCPoQPifC2po/IvrwYwTTzGDqxOmWREutYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 TXT Records#

2 records 310ms

TXT Record
MS=ms36655351
v=spf1 mx include:spf.protection.xperion.dk include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.mx.cloudflare.net -all

✉️ SPF#

Policy	Record (celus.dk)
-all (hard fail)	v=spf1 mx include:spf.protection.xperion.dk include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.mx.cloudflare.net -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-17 04:14:06

www	104.21.80.219 172.67.187.72 2606:4700:3033::6815:50db 2606:4700:3036::ac43:bb48 (AS13335) (address records, no CNAME)
www vs bare domain	Same network celus.dk: 104.21.80.219 172.67.187.72 2606:4700:3033::6815:50db 2606:4700:3036::ac43:bb48 (AS13335) www.celus.dk: 104.21.80.219 172.67.187.72 2606:4700:3033::6815:50db 2606:4700:3036::ac43:bb48 (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
selector1	selector1-celus-dk._domainkey.xperion390.r-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-celus-dk._domainkey.xperion390.r-v1.dkim.mail.microsoft	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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

293ms

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

🏷️ SOA#

142ms

Field	Value
Serial	2405195846
Primary NS (MNAME)	karl.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 19:38:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-03-24
Expires	2027-03-23 (156d)

📋 WHOIS#

⏱️ Lookup Timing#

143ms

153ms

171ms

AAAA

120ms

TXT

310ms

CAA

123ms

HTTPS

138ms

TLSA

782ms

SOA

142ms

MTA-STS

177ms

DNSSEC

293ms

SRV

0ms

Total

2524ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 04:14:06	1834ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-06 19:28:41	2278ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 17:28:19	1395ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-19 00:10:54	1649ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-11 22:02:01	2525ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-03 09:46:02	1939ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-30 09:13:12	2011ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-28 15:00:43	934ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-05 20:16:56	1905ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-15 18:01:08	10360ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-30 20:57:48	1577ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 17:35:29	919ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 00:19:14	1191ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 12:45:35	981ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 20:31:06	25659ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 20:10:35 shown	2524ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 20:05:37	506ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 20:00:46	1913ms	2 NS 2 A 1 MX	🔒 Secure