matem.dk

📜 Historical scan 2026-09-27 06:54:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

matem.dk is a .dk domain served by 2 nameservers (arturo.ns.cloudflare.com, deb.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.26.230 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by matem-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
arturo.ns.cloudflare.com	108.162.195.216 162.159.44.216 172.64.35.216 2606:4700:58::a29f:2cd8 2803:f800:50::6ca2:c3d8 2a06:98c1:50::ac40:23d8	arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com arturo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
deb.ns.cloudflare.com	108.162.192.92 172.64.32.92 173.245.58.92 2606:4700:50::adf5:3a5c 2803:f800:50::6ca2:c05c 2a06:98c1:50::ac40:205c	deb.ns.cloudflare.com deb.ns.cloudflare.com deb.ns.cloudflare.com deb.ns.cloudflare.com deb.ns.cloudflare.com deb.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 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.26.230	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.168.146	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	matem-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::22 2a01:111:f403:ca09::a 2a01:111:f403:ca38::a 52.101.103.39 52.101.209.153 52.101.68.8 52.101.73.123	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 40.104.116.56
🔶 Autoconfig	104.21.26.230

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:1ae6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:a892	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.230,172.67.168.146 ech=AEX+DQBBLAAgACCnrc+lmwRsb6ZoqEd55zu38Ph2JRjLtFbhI7eLXDX+EwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1ae6,2606:4700:3037::ac43:a892

📝 TXT Records#

2 records 191ms

TXT Record
MS=ms63282503
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (matem.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.matem.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 2026-10-08 04:14:42

www	104.21.26.230 172.67.168.146 2606:4700:3034::6815:1ae6 2606:4700:3037::ac43:a892 (AS13335) (address records, no CNAME)
www vs bare domain	Same network matem.dk: 104.21.26.230 172.67.168.146 2606:4700:3034::6815:1ae6 2606:4700:3037::ac43:a892 (AS13335) www.matem.dk: 104.21.26.230 172.67.168.146 2606:4700:3034::6815:1ae6 2606:4700:3037::ac43:a892 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-matem-dk._domainkey.matemaps21.a-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-matem-dk._domainkey.matemaps21.a-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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

77ms

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	2414173618
Primary NS (MNAME)	arturo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

36ms

35ms

AAAA

46ms

TXT

191ms

CAA

45ms

HTTPS

35ms

TLSA

374ms

SOA

0ms

MTA-STS

66ms

DNSSEC

77ms

SRV

71ms

Total

964ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 04:14:41	1097ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 08:26:44	1187ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 06:54:38 shown	964ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 22:20:11	1855ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 19:17:50	1670ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 06:58:45	2761ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 04:55:12	6312ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-03 05:20:53	1293ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 10:13:42	4222ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 20:34:34	1665ms	2 NS 2 A 1 MX	🔓 Insecure