sertmann.dk

📜 Historical scan 2026-06-27 02:39:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sertmann.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 193.200.90.102 is hosted by Christian Ebsen ApS (AS62121) in Denmark. The zone is of unknown DNSSEC status, 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 273ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.e-studio.dk	195.242.131.5 2001:67c:564:fffc::11	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 34.34-46.152.69.62.in-addr.arpa	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 —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 245ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.200.90.102	14400s	web9.e-studio.dk	AS62121	Christian Ebsen ApS	193.200.90.0/23	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.sertmann.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 2026-10-16 18:37:25

www CNAME	sertmann.dk (all on sertmann.dk) → 193.200.90.102 (AS62121)
www vs bare domain	Same network sertmann.dk: 193.200.90.102 (AS62121) www.sertmann.dk: 193.200.90.102 (AS62121)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

495ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: failure

🏷️ SOA#

258ms

Field	Value
Serial	2026061601
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#

273ms

245ms

446ms

AAAA

271ms

TXT

773ms

CAA

448ms

HTTPS

218ms

TLSA

269ms

SOA

258ms

MTA-STS

469ms

DNSSEC

495ms

SRV

434ms

Total

1791ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 18:37:25	444ms	3 NS 1 A 4 MX	🔓 Insecure
2026-10-01 02:14:32	559ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-24 16:44:46	618ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-16 20:03:39	2943ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-27 02:39:15 shown	1791ms	3 NS 1 A 0 MX	❓ Unknown
2026-06-26 02:32:03	1573ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-23 03:53:14	785ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-22 20:01:08	1649ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-22 06:18:50	1159ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 13:39:44	2492ms	3 NS 1 A 4 MX	🔓 Insecure