cal.dk

📜 Historical scan 2026-09-08 09:58:44 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cal.dk is a .dk domain served by 2 nameservers (amit.ns.cloudflare.com, emma.ns.cloudflare.com). It was registered on 9 June 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.178 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by cal-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 109ms

Nameserver	IP addresses	PTR	ASN / ISP
amit.ns.cloudflare.com	108.162.193.63 172.64.33.63 173.245.59.63 2606:4700:58::adf5:3b3f 2803:f800:50::6ca2:c13f 2a06:98c1:50::ac40:213f	amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
emma.ns.cloudflare.com	108.162.192.112 172.64.32.112 173.245.58.112 2606:4700:50::adf5:3a70 2803:f800:50::6ca2:c070 2a06:98c1:50::ac40:2070	emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com emma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.178	600s	linux19.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 123ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cal-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::7 2a01:111:f403:ca09::b 2a01:111:f403:ca3c::6 52.101.185.24 52.101.209.153 52.101.209.28 52.101.68.21	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00205.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 → 52.98.253.72

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 200ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

4 records 239ms

TXT Record
MS=ms17342895
MS=ms49059564
v=msv1 t=DB06FD85-AC16-4255-A793-FF6FA1CEDCD9
v=spf1 include:spf.protection.outlook.com a:mailfilter01.itf.dk -all

✉️ SPF#

Policy	Record (cal.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com a:mailfilter01.itf.dk -all

📨 DMARC#

Policy	Record (_dmarc.cal.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 13:09:06

www	185.21.41.178 (AS48854) (address records, no CNAME)
www vs bare domain	Same network cal.dk: 185.21.41.178 (AS48854) www.cal.dk: 185.21.41.178 (AS48854)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u33880552.wl053.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u33880552.wl053.sendgrid.net	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#

179ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414196571
Primary NS (MNAME)	amit.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 21:33:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-06-09
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

109ms

85ms

123ms

AAAA

111ms

TXT

239ms

CAA

148ms

HTTPS

139ms

TLSA

149ms

SOA

0ms

MTA-STS

96ms

DNSSEC

179ms

SRV

200ms

Total

1828ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 04:18:31	1223ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-29 02:32:12	1530ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-10 13:33:20	2238ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 09:58:44 shown	1828ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-25 16:51:57	1573ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-21 14:51:18	2472ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-20 14:38:36	14161ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-01 23:25:33	2028ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 07:16:05	2365ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 18:50:10	857ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-16 18:55:45	717ms	2 NS 1 A 1 MX	🔓 Insecure