copper.dk

📜 Historical scan 2026-09-24 23:55:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

copper.dk is a .dk domain served by 2 nameservers (margo.ns.cloudflare.com, raquel.ns.cloudflare.com). It was registered on 25 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.94.203 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by copper-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 40ms

Nameserver	IP addresses	PTR	ASN / ISP
margo.ns.cloudflare.com	108.162.195.144 162.159.44.144 172.64.35.144 2606:4700:58::a29f:2c90 2803:f800:50::6ca2:c390 2a06:98c1:50::ac40:2390	margo.ns.cloudflare.com margo.ns.cloudflare.com margo.ns.cloudflare.com margo.ns.cloudflare.com margo.ns.cloudflare.com margo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
raquel.ns.cloudflare.com	108.162.194.210 162.159.38.210 172.64.34.210 2606:4700:50::a29f:26d2 2803:f800:50::6ca2:c2d2 2a06:98c1:50::ac40:22d2	raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.94.203	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.139.189	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	copper-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca04::e 2a01:111:f403:ca09::28 2a01:111:f403:ca21::e 52.101.181.156 52.101.185.24 52.101.68.27 52.101.73.120	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am7pr02cu00300.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8bbd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5ecb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.94.203,172.67.139.189 ech=AEX+DQBB6QAgACBCpBJAFSKVK2UrRhz4bGmPXPDbdxLg+jI59Bvqbl0VPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8bbd,2606:4700:3036::6815:5ecb

🔌 SRV Records#

1 records 75ms

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

📝 TXT Records#

2 records 175ms

TXT Record
MS=ms24393265
v=spf1 include:_spf.mx.cloudflare.net include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (copper.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net include:spf.protection.outlook.com ~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 2026-10-08 05:54:56

www	104.21.94.203 172.67.139.189 2606:4700:3030::ac43:8bbd 2606:4700:3036::6815:5ecb (AS13335) (address records, no CNAME)
www vs bare domain	Same network copper.dk: 104.21.94.203 172.67.139.189 2606:4700:3030::ac43:8bbd 2606:4700:3036::6815:5ecb (AS13335) www.copper.dk: 104.21.94.203 172.67.139.189 2606:4700:3030::ac43:8bbd 2606:4700:3036::6815:5ecb (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.copper.dk	4mnEo699wsvX8WcfrBCugBX29yWdqejtohmBf2ijxXA
TXT	_acme-challenge.copper.dk	up1pY_OCMjdRIpgGyN49H_7h5bifOinXM3fP3DLzYxg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

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	2415769497
Primary NS (MNAME)	margo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 06:14:43

Field	Value
Registrar	Simply.com A/S
Registered	2023-11-25
Expires	2028-11-24 (764d)

📋 WHOIS#

⏱️ Lookup Timing#

40ms

38ms

47ms

AAAA

46ms

TXT

175ms

CAA

46ms

HTTPS

38ms

TLSA

653ms

SOA

0ms

MTA-STS

66ms

DNSSEC

114ms

SRV

75ms

Total

1370ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 05:54:56	3346ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 05:48:59	3752ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 01:28:20	1147ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 00:36:13	2215ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 23:59:47	1109ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 23:55:50 shown	1370ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 23:42:16	1110ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 14:26:00	2002ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 18:50:22	1208ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 23:32:04	4379ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 10:28:58	808ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-04 16:58:36	1942ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-02 01:36:45	1519ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 19:27:22	1456ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 08:57:30	1387ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-16 09:08:42	1828ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 15:21:47	1639ms	2 NS 2 A 1 MX	❓ Unknown
2026-08-06 14:39:51	2016ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-05 11:08:36	1616ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-29 10:23:09	3162ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 04:13:22	1510ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-11 08:53:54	1988ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 01:21:58	2646ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-23 11:30:58	1052ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 22:25:26	566ms	2 NS 2 A 1 MX	🔓 Insecure