celus.dk

📜 Historical scan 2026-08-30 09:13:12 · ← 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 127ms

Nameserver	IP addresses	PTR	ASN / ISP
karl.ns.cloudflare.com	108.162.193.190 172.64.33.190 173.245.59.190 2606:4700:58::adf5:3bbe 2803:f800:50::6ca2:c1be 2a06:98c1:50::ac40:21be	karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lady.ns.cloudflare.com	108.162.192.127 172.64.32.127 173.245.58.127 2606:4700:50::adf5:3a7f 2803:f800:50::6ca2:c07f 2a06:98c1:50::ac40:207f	lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.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 122ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.80.219	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.187.72	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 114ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	celus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::d 2a01:111:f403:ca09::28 2a01:111:f403:ca09::c 52.101.209.153 52.101.73.12 52.101.73.155 52.101.73.28	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

2 records 109ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:50db	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:bb48	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 116ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.80.219,172.67.187.72 ech=AEX+DQBBGAAgACD/6TyNDoChX9oOn4Yg0snN6juX0nxH8qfh9RjPmPxMGwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:50db,2606:4700:3036::ac43:bb48

📝 TXT Records#

2 records 324ms

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#

268ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413490253
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 (157d)

📋 WHOIS#

⏱️ Lookup Timing#

127ms

122ms

114ms

AAAA

109ms

TXT

324ms

CAA

86ms

HTTPS

116ms

TLSA

841ms

SOA

0ms

MTA-STS

144ms

DNSSEC

268ms

SRV

154ms

Total

2011ms

🕐 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 shown	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	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