kastbergs.dk

Records from scan: 2026-10-12 23:28:11 · 1112ms total · last checked 2026-10-18 05:59 (unchanged)

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kastbergs.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 3 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.80 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.80	3600s	linux75.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

5 records 23ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c01::1b 2a00:1450:4010:c01::1b 74.125.205.27	lh-in-f27.1e100.net lh-in-x1b.1e100.net le-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	94.231.103.80
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 41ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records#

3 records 99ms

TXT Record
google-site-verification=2VJkr4w7rSv1KToMVXbHvmGmuaehep_BtXRxphWD9LM
google-site-verification=B50TSrZ3azC3GGmJkrbir_5qKpaxSC3Y6fPI9J7nJ0M
google-site-verification=Tlpj_FMryUg6qaqQEiyrS0HoqNr2P12NRgTPEmX0dm4

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

checked 2026-10-12 23:28:11

www	94.231.103.80 (AS48854) (address records, no CNAME)
www vs bare domain	Same network kastbergs.dk: 94.231.103.80 (AS48854) www.kastbergs.dk: 94.231.103.80 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
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
s1	s1.domainkey.u8482051.wl052.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u8482051.wl052.sendgrid.net	RSA · ~1024 bit below 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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

105ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 18:02:47

Field	Value
Registrar	Simply.com A/S
Registered	2017-01-03
Expires	2027-01-31 (104d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

37ms

23ms

AAAA

32ms

TXT

99ms

CAA

34ms

HTTPS

30ms

TLSA

63ms

SOA

27ms

MTA-STS

48ms

DNSSEC

105ms

SRV

41ms

Total

1112ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 23:28:11 shown	1112ms	4 NS 1 A 5 MX	🔒 Secure
2026-10-06 17:31:24	729ms	4 NS 1 A 5 MX	🔒 Secure
2026-10-01 12:28:37	2390ms	4 NS 1 A 5 MX	🔒 Secure
2026-09-24 11:38:23	702ms	4 NS 1 A 5 MX	🔒 Secure
2026-09-09 00:07:21	2564ms	4 NS 1 A 5 MX	🔒 Secure
2026-06-24 16:07:20	3070ms	4 NS 1 A 5 MX	🔒 Secure
2026-06-23 15:40:25	1145ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 09:16:49	1150ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 13:12:59	759ms	4 NS 1 A 5 MX	🔒 Secure