redblu.dk

📜 Historical scan 2026-10-03 11:44:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

redblu.dk is a .dk domain served by 2 nameservers (ns1.fozzy.ru, ns2.fozzy.ru). It was registered on 11 March 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 88.212.232.164 is hosted by JSC Selectel (AS50340) in Russia. Mail is handled by redblu.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#

2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.fozzy.ru	88.212.247.28	ns1.fozzy.ru	AS50340 JSC Selectel
ns2.fozzy.ru	88.212.252.178	—	AS50340 JSC Selectel

🌍 A Records#

1 records 161ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
88.212.232.164	14400s	—	AS50340	JSC Selectel	88.212.232.0/23	🇷🇺 Russia	Moscow

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	redblu.dk	88.212.232.164	—	AS50340 JSC Selectel

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	88.212.232.164
🔶 Autoconfig	88.212.232.164

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 309ms

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

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 20:09:26

www CNAME	redblu.dk (all on redblu.dk) → 88.212.232.164 (AS50340)
www vs bare domain	Same network redblu.dk: 88.212.232.164 (AS50340) www.redblu.dk: 88.212.232.164 (AS50340)
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.

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.redblu.dk	q7RSrb137_V70jChVfP26Ro9h8MjGSLVJ472Yt_zo90

🔗 TLSA / DANE#

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

🔐 DNSSEC#

178ms

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

🏷️ SOA#

306ms

Field	Value
Serial	2023092101
Primary NS (MNAME)	ns1.fozzy.com
Responsible (RNAME)	orders@fozzy.com
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-14 19:06:37

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-03-11
Expires	2027-03-31 (165d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

50ms

161ms

42ms

AAAA

155ms

TXT

692ms

CAA

53ms

HTTPS

162ms

TLSA

366ms

SOA

306ms

MTA-STS

64ms

DNSSEC

178ms

SRV

309ms

Total

2116ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 20:09:26	2287ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-03 11:44:54 shown	2116ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 07:38:07	3251ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-31 14:30:18	10297ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 04:45:51	3796ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 05:58:22	1677ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 20:22:47	1248ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 16:59:00	2294ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 05:29:29	1170ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 00:57:13	2638ms	2 NS 1 A 1 MX	🔓 Insecure