21667668.dk DNS records

🖥️ Nameservers3 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.hostonline.dk	217.195.185.243 2a02:188:6004:14::10	ns4.hostonline.dk ns4.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns5.hostonline.dk	217.195.185.244 2a02:188:6004:14::11	ns5.hostonline.dk ns5.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns6.hostonline.dk	85.191.126.85	ns6.hostonline.dk	AS204274 AURA Fiber A/S

🌍 A Records1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.215.236.224	60s	—	AS3292	TDC Holding A/S	195.215.0.0/16	🇩🇰 Denmark	Brønshøj

📧 MX Records2 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	he.hostonline.dk	217.195.185.200 2a02:188:164::100	he.hostonline.dk he.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
30	43200s	mx-backup.hostonline.dk	217.195.185.201 2a02:188:6004:15::12	mx-backup.hostonline.dk spamfront2.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 127ms

TXT Record
v=spf1 a mx include:_spf.hostonline.dk -all

✉️ SPF

Policy	Record (21667668.dk)
-all (hard fail)	v=spf1 a mx include:_spf.hostonline.dk -all

📨 DMARC

Policy	Record (_dmarc.21667668.dk)
p=reject	v=DMARC1; p=reject; aspf=r;

📬 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)

🔐 DNSSEC122ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082602
Primary NS (MNAME)	ns4.hostonline.dk
Responsible (RNAME)	hostmaster@21667668.dk
Refresh	16384s
Retry	2048s
Expire	1048576s
Minimum (neg-cache TTL)	2560s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

61ms

A

36ms

MX

61ms

AAAA

39ms

TXT

127ms

CAA

46ms

HTTPS

36ms

TLSA

39ms

SOA

0ms

MTA-STS

65ms

DNSSEC

122ms

SRV

65ms

Total

513ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 18:03:35	513ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-21 06:11:53	4081ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-18 02:10:01	2897ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-15 23:47:24	2008ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-12 20:42:33	3428ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-06 09:54:18	1134ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-08-04 14:40:14	2110ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-27 13:05:33	985ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-22 07:41:24	1778ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-17 13:05:46	1190ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-13 14:25:06	10642ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-07 04:34:09	1179ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-07-03 18:19:12	2690ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-28 10:13:22	1743ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-22 04:35:36	579ms	3 NS 1 A 2 MX	⚠️ Bogus	View
2026-06-19 05:16:43	4254ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 12:47:39	721ms	3 NS 1 A 2 MX	🔓 Insecure	View