guestu.dk

📜 Historical scan 2026-08-25 09:19:56  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guestu.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 3 February 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.180 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mail.guestu.dk. The zone is not DNSSEC-signed, has no 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   34ms
NameserverIP addressesPTRASN / 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   44ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.200.90.180 300s web8.e-studio.dk AS62121 Christian Ebsen ApS 193.200.90.0/23 🇩🇰 Denmark —

📧 MX Records#

1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.guestu.dk 193.200.90.180 web8.e-studio.dk AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover193.200.90.180
🔶 Autoconfig193.200.90.180

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   61ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records   163ms
TXT Record
v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all

✉️ SPF#

PolicyRecord (guestu.dk)
~all (soft fail) v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all

📨 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#

latest probe, not this scan · checked 2026-10-07 22:25:29
www CNAMEguestu.dk (all on guestu.dk)
www vs bare domainSame network
guestu.dk: 176.9.48.56 (AS24940)
www.guestu.dk: 176.9.48.56 (AS24940)
WildcardNo

✍️ DKIM keys#

1 found
SelectorCNAMEKey
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

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.guestu.dk DaoJOkAOxBl-GWZOMCNlUZ4RvyZWXTGL-PljTAwnKX8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9081ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026072401
Primary NS (MNAME)ns1.e-studio.dk
Responsible (RNAME)hostmaster@mailrelay.e-studio.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-02 18:23:02
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2022-02-03
Expires2027-02-02 (105d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
34ms
A
44ms
MX
44ms
AAAA
42ms
TXT
163ms
CAA
53ms
HTTPS
44ms
TLSA
54ms
SOA
0ms
MTA-STS
65ms
DNSSEC
9081ms
SRV
61ms
Total
9421ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-02 17:43:27 588ms 4 NS 1 A 1 MX 🔓 Insecure
2026-10-01 17:41:08 1693ms 4 NS 1 A 1 MX 🔓 Insecure
2026-09-29 17:16:55 4452ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-24 17:04:19 506ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-04 20:14:32 483ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-25 09:19:56 shown 9421ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-25 13:12:39 764ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-27 16:59:36 631ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-17 10:20:38 2248ms 3 NS 1 A 1 MX 🔓 Insecure
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