rtrosenberg.dk

📜 Historical scan 2026-09-12 01:15:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rtrosenberg.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.198.79.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by ASPMX.L.GOOGLE.COM, ALT1.ASPMX.L.GOOGLE.COM and 6 more. The zone is DNSSEC-signed and validates, 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#

3 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.e-studio.dk	195.242.131.5 2001:67c:564:fffc::11	ns1.e-studio.dk ns1.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.e-studio.dk	2a00:1b18:2:3::2 62.69.152.34	ns2.e-studio.dk ns2.e-studio.dk	AS47527 DLX A/S AS47527 DLX A/S
ns3.e-studio.dk	193.200.90.183 2001:67c:564:fffc::13	ns3.e-studio.dk ns3.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.198.79.1	14400s	—	AS16509	Amazon.com, Inc.	216.198.79.0/24	🇺🇸 United States	—

📧 MX Records#

8 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	ASPMX.L.GOOGLE.COM	142.250.147.27 2a00:1450:4025:c03::1a	rd-in-f27.1e100.net rc-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	ALT1.ASPMX.L.GOOGLE.COM	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	ALT2.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
10	3600s	ALT3.ASPMX.L.GOOGLE.COM	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	ALT4.ASPMX.L.GOOGLE.COM	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	mx1.spamfri.dk	195.242.131.16 2001:67c:564:fffd::1001	mx1.spamfri.dk mx1.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	3600s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	3600s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 48ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

4 records 137ms

TXT Record
google-site-verification=0oi9KpQlM8_2XcSDJGTSjV_f4ojEz6Kb-tyOlskOioY
google-site-verification=eDA3qju9eOYpvX5-kOoc-SxKJn3wI8T7_s56WJUMJhM
google-site-verification=XFb80sO-eM0TjWQqtD7g9D1cWrZdNru3BOOuRh_f0VY
v=spf1 +a +mx +ip4:193.200.90.178 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (rtrosenberg.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:193.200.90.178 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.rtrosenberg.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 05:00:26

www	216.150.16.193 216.150.16.65 (AS16509) (address records, no CNAME)
www vs bare domain	Same network rtrosenberg.dk: 216.150.16.193 216.150.16.65 (AS16509) www.rtrosenberg.dk: 216.150.16.193 216.150.16.65 (AS16509)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rtrosenberg.dk	sQsoxsNOsadn_21nX7Ix8KMWsAh5OzcIdh5dgC071Pk

🔗 TLSA / DANE#

3 records 153ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.spamfri.dk	DANE-EE · SPKI · SHA-256	884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…

🔐 DNSSEC#

69ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090703
Primary NS (MNAME)	ns1.e-studio.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

33ms

29ms

40ms

AAAA

42ms

TXT

137ms

CAA

25ms

HTTPS

32ms

TLSA

153ms

SOA

0ms

MTA-STS

41ms

DNSSEC

69ms

SRV

48ms

Total

937ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 05:00:26	798ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 17:36:32	1025ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-16 08:07:53	929ms	3 NS 1 A 8 MX	🔒 Secure
2026-09-12 01:15:01 shown	937ms	3 NS 1 A 8 MX	🔒 Secure
2026-09-09 22:43:56	1114ms	3 NS 1 A 8 MX	🔒 Secure
2026-09-04 02:04:11	802ms	3 NS 1 A 8 MX	🔒 Secure
2026-07-08 17:39:50	2229ms	3 NS 1 A 8 MX	🔒 Secure
2026-07-02 11:02:55	1859ms	3 NS 1 A 8 MX	🔒 Secure
2026-06-21 05:14:38	3602ms	3 NS 1 A 8 MX	⚠️ Bogus
2026-06-17 18:34:10	6401ms	3 NS 1 A 8 MX	🔒 Secure