bluearrow.dk

📜 Historical scan 2026-08-21 23:15:26 · ← 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 69ms

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 71ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.131.71	14400s	web5.e-studio.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 105ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	bluearrow.dk	195.242.131.71	web5.e-studio.dk	AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.242.131.71
🔶 Autoconfig	195.242.131.71

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 953ms

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

📝 TXT Records#

1 records 331ms

TXT Record
v=spf1 +a +mx +ip4:195.242.131.71 include:_spf.e-studio.dk ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_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 CNAME	bluearrow.dk (all on bluearrow.dk) → 195.242.131.71 (AS62121)
www vs bare domain	Same network bluearrow.dk: 195.242.131.71 (AS62121) www.bluearrow.dk: 195.242.131.71 (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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.bluearrow.dk	YJ-iYwi5VmFQg7iiHxdXE5Un-aeF0sUKx-sVtO15UdQ

🔗 TLSA / DANE#

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

🔐 DNSSEC#

239ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082101
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 2026-10-06 10:14:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-11-28
Expires	2030-11-30 (1504d)

📋 WHOIS#

⏱️ Lookup Timing#

69ms

71ms

105ms

AAAA

127ms

TXT

331ms

CAA

74ms

HTTPS

123ms

TLSA

109ms

SOA

0ms

MTA-STS

141ms

DNSSEC

239ms

SRV

953ms

Total

1890ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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 shown	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	627ms	3 NS 1 A 1 MX	🔓 Insecure