mtcore.dk

📜 Historical scan 2026-10-20 17:39:08  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mtcore.dk is a .dk domain served by 2 nameservers (james.ns.cloudflare.com, ximena.ns.cloudflare.com). It was registered on 8 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.145 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.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   38ms
NameserverIP addressesPTRASN / ISP
james.ns.cloudflare.com 108.162.193.178
172.64.33.178
173.245.59.178
2606:4700:58::adf5:3bb2
2803:f800:50::6ca2:c1b2
2a06:98c1:50::ac40:21b2		 james.ns.cloudflare.com
james.ns.cloudflare.com
james.ns.cloudflare.com
james.ns.cloudflare.com
james.ns.cloudflare.com
james.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
ximena.ns.cloudflare.com 108.162.194.10
162.159.38.10
172.64.34.10
2606:4700:50::a29f:260a
2803:f800:50::6ca2:c20a
2a06:98c1:50::ac40:220a		 ximena.ns.cloudflare.com
ximena.ns.cloudflare.com
ximena.ns.cloudflare.com
ximena.ns.cloudflare.com
ximena.ns.cloudflare.com
ximena.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   35ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.41.145 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.191.57 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.103.108
94.231.106.20		 mx.simply.com
mx.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.41.145
🔶 Autoconfig172.67.191.57

🔷 AAAA Records (IPv6)#

2 records   45ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:bf39 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::6815:2991 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   48ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.41.145,172.67.191.57 ech=AEX+DQBB3QAgACAYD+5BPkEEfZcYrhXVES2cQDsBXedXaHSjV8c8tN9ANQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:bf39,2606:4700:3035::6815:2991

📝 TXT Records#

1 records   156ms
TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (mtcore.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_dmarc.mtcore.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:97cf4d4e2069420caf30b3b339be964f@dmarc-reports.cloudflare.net

📬 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 2026-10-21 21:00:55
www104.21.41.145 172.67.191.57 2606:4700:3032::ac43:bf39 2606:4700:3035::6815:2991 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   68ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 4B949F05A63FED95FC94B3A83DD70167…

🔐 DNSSEC#

76ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

38ms
FieldValue
Serial2417987954
Primary NS (MNAME)james.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 16:05:38
FieldValue
RegistrarSimply.com A/S
Registered2026-01-08
Expires2027-01-07 (77d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
38ms
A
35ms
MX
47ms
AAAA
45ms
TXT
156ms
CAA
43ms
HTTPS
48ms
TLSA
68ms
SOA
38ms
MTA-STS
49ms
DNSSEC
76ms
SRV
71ms
Total
503ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 21:00:55 2476ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-20 17:39:08 shown 503ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-19 17:03:04 546ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-16 15:55:19 832ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-14 13:29:59 792ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-12 07:03:48 472ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-09 04:00:38 827ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-08 03:58:08 743ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-07 03:55:46 1428ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-05 20:17:33 773ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-04 20:14:27 448ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-03 20:12:18 430ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-01 20:07:18 504ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 19:53:09 564ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 09:38:39 704ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-28 09:15:11 815ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 08:46:52 762ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 15:36:32 650ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-20 01:10:05 1178ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-12 23:40:33 2142ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-05 22:52:05 1088ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-31 08:43:54 716ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 22:36:48 9709ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 14:43:28 1029ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-17 13:21:50 2895ms 2 NS 2 A 1 MX 🔓 Insecure
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