bluearrow.dk

📜 Historical scan 2026-06-16 15:00:33  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bluearrow.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 28 November 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.71 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by bluearrow.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   68ms
NameserverIP addressesPTRASN / ISP
ns1.e-studio.dk — — —
ns2.e-studio.dk — — —
ns3.e-studio.dk — — —

🌍 A Records#

1 records   72ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.242.131.71 — web5.e-studio.dk AS62121 Christian Ebsen ApS 195.242.130.0/23 🇩🇰 Denmark —

📧 MX Records#

1 records   116ms
PriorityTTLMail ServerIP addressesPTRASN
0 — bluearrow.dk 195.242.131.71 web5.e-studio.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   172ms
TXT Record
v=spf1 +a +mx +ip4:195.242.131.71 include:_spf.e-studio.dk ~all

✉️ SPF#

PolicyRecord (bluearrow.dk)
~all (soft fail) v=spf1 +a +mx +ip4:195.242.131.71 include:_spf.e-studio.dk ~all

📨 DMARC#

PolicyRecord (_dmarc.bluearrow.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 14:35:59
www CNAMEbluearrow.dk (all on bluearrow.dk)
www vs bare domainSame network
bluearrow.dk: 195.242.131.71 (AS62121)
www.bluearrow.dk: 195.242.131.71 (AS62121)
WildcardNo
Denial of existenceNSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

301ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

66ms
FieldValue
Serial2026060501
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 2026-10-06 10:14:08
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2019-11-28
Expires2030-11-30 (1504d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
68ms
A
72ms
MX
116ms
AAAA
140ms
TXT
172ms
CAA
116ms
HTTPS
162ms
TLSA
65ms
SOA
66ms
MTA-STS
100ms
DNSSEC
301ms
SRV
0ms
Total
627ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-06 10:03:09 2163ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-20 14:44:35 1182ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-21 23:15:26 1890ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-06 05:15:34 817ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-25 00:14:39 1890ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-27 13:10:53 1778ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-25 17:13:43 1253ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-22 17:42:06 1186ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-22 09:32:42 1006ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-20 22:44:19 1107ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 22:37:53 999ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-16 15:13:47 1647ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-16 15:10:55 383ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-16 15:02:12 2471ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-16 15:00:33 shown 627ms 3 NS 1 A 1 MX 🔓 Insecure
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