oligo.dk

📜 Historical scan 2026-06-17 11:41:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

oligo.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 8 April 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.123 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by oligo.dk. The zone is not DNSSEC-signed, 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 101ms

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 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 ns3.e-studio.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

🌍 A Records#

1 records 86ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.123	—	sleipner.euhosting.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	oligo.dk	195.242.131.123	sleipner.euhosting.dk	AS62121 Christian Ebsen ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 317ms

TXT Record
v=spf1 +a +mx +ip4:195.242.131.123 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (oligo.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:195.242.131.123 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.oligo.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 2026-10-11 07:40:28

www CNAME	oligo.dk (all on oligo.dk) → 195.242.131.123 (AS62121)
www vs bare domain	Same network oligo.dk: 195.242.131.123 (AS62121) www.oligo.dk: 195.242.131.123 (AS62121)
Wildcard	No
Denial of existence	NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ 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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

339ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

49ms

Field	Value
Serial	2026051801
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#

WHOIS fetched 2026-10-17 20:28:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-04-08
Expires	2027-04-30 (194d)

📋 WHOIS#

⏱️ Lookup Timing#

101ms

86ms

68ms

AAAA

172ms

TXT

317ms

CAA

72ms

HTTPS

224ms

TLSA

207ms

SOA

49ms

MTA-STS

76ms

DNSSEC

339ms

SRV

0ms

Total

875ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-19 08:11:47	1106ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-24 20:08:02	599ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-19 03:08:57	2052ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:41:23 shown	875ms	3 NS 1 A 1 MX	🔓 Insecure