bluestring.dk

📜 Historical scan 2026-08-13 09:29:32 · ← Latest scan

🧟 Lame delegation ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bluestring.dk is a registered .dk domain whose nameservers (1ns.yahoo.com, 2ns.yahoo.com) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 21 September 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 523ms

Nameserver	IP addresses	PTR	ASN / ISP
1ns.yahoo.com	2001:4998:c:fe2f:726f:636b:6f:6e0a 74.6.35.130	1ns.yahoo.com 1ns.yahoo.com	AS36647 Yahoo Holdings Inc. AS36647 Yahoo Holdings Inc.
2ns.yahoo.com	2001:4998:58:fe2c:726f:636b:6f:6e0a 98.139.24.68	2ns.yahoo.com 2ns.yahoo.com	AS26101 Yahoo Holdings Inc. AS26101 Yahoo Holdings Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

1224ms

Check	Result
Validation Status	❓ Unknown (the delegated nameservers don't answer)
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: failure

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-10 07:00:39

Field	Value
Registrar	MarkMonitor Inc.
Registered	2007-09-21
Expires	2026-09-30 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

523ms

667ms

509ms

AAAA

629ms

TXT

11991ms

CAA

524ms

HTTPS

504ms

TLSA

829ms

SOA

60ms

MTA-STS

605ms

DNSSEC

1224ms

SRV

1078ms

Total

16662ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-23 19:00:37	41240ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-22 17:25:21	37186ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-21 17:11:53	38462ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-20 16:57:55	46470ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-19 16:12:29	37987ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-18 16:10:25	7413ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-17 06:51:17	38043ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-15 22:15:20	35966ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-14 15:10:57	35265ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-13 09:29:32 shown	16662ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-11 09:31:35	37925ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-09 15:11:55	41490ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-07 18:30:21	38512ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-05 05:17:01	41002ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-30 21:49:07	38284ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-28 03:13:06	40314ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-27 01:44:59	28218ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-26 01:16:18	9792ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-25 01:00:05	16740ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-23 23:09:07	65535ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-22 19:04:31	16162ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-21 17:27:44	15273ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-20 08:58:57	26332ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-19 02:31:24	21376ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-18 00:57:30	15231ms	2 NS 0 A 0 MX	❓ Unknown