blue-tech.dk

📜 Historical scan 2026-08-20 17:45:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

blue-tech.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 17 September 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.53 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by bluetech-dk01b.mail.protection.outlook.com. 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 21ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 2ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.20.205.53	3600s	linux377.unoeuro.com	AS48854	team.blue Denmark A/S	185.20.204.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 2ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	bluetech-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca09::5 52.101.68.25 52.101.68.27 52.101.68.3 52.101.73.28	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 46ms

TXT Record
v=spf1 ip4:89.184.152.134 ip4:212.37.152.72 include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all

✉️ SPF#

Policy	Record (blue-tech.dk)
-all (hard fail)	v=spf1 ip4:89.184.152.134 ip4:212.37.152.72 include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all

📨 DMARC#

Policy	Record (_dmarc.blue-tech.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 13:59:11

www	185.20.205.53 (AS48854) (address records, no CNAME)
www vs bare domain	Same network blue-tech.dk: 185.20.205.53 (AS48854) www.blue-tech.dk: 185.20.205.53 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

140ms

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

Key type	Algorithm	Public key
KSK	ECDSA P-256/SHA-256	iMGWd7loLsKFKYm0txqIbMEahIi8R4MmHtZZ1qWc…

🏷️ SOA#

16ms

Field	Value
Serial	2025123009
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-04 06:57:49

Field	Value
Registrar	Simply.com A/S
Registered	2014-09-17
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

21ms

2ms

AAAA

6ms

TXT

46ms

CAA

2ms

HTTPS

60ms

TLSA

104ms

SOA

16ms

MTA-STS

5ms

DNSSEC

140ms

SRV

0ms

Total

6222ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 13:59:11	438ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-04 06:14:15	1397ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-24 03:35:55	9667ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-20 17:45:18 shown	6222ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-01 19:33:49	1157ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 13:53:35	1161ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 14:17:29	2215ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 15:16:17	1899ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 15:08:09	649ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 15:04:01	2737ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 15:00:43	706ms	3 NS 1 A 1 MX	🔓 Insecure