thirty7.dk DNS records

🖥️ Nameservers4 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1210.awsdns-23.org	205.251.196.186 2600:9000:5304:ba00::1	ns-1210.awsdns-23.org ns-1210.awsdns-23.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1963.awsdns-53.co.uk	205.251.199.171 2600:9000:5307:ab00::1	ns-1963.awsdns-53.co.uk ns-1963.awsdns-53.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-496.awsdns-62.com	205.251.193.240 2600:9000:5301:f000::1	ns-496.awsdns-62.com ns-496.awsdns-62.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-810.awsdns-37.net	205.251.195.42 2600:9000:5303:2a00::1	ns-810.awsdns-37.net ns-810.awsdns-37.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records4 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records3 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
10	3600s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
20	3600s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 250ms

TXT Record
MS=ms42747929
v=spf1 include:_thirty7_dk.spf-protect.com -all
vpe=e359b2a4

✉️ SPF

Policy	Record (thirty7.dk)
-all (hard fail)	v=spf1 include:_thirty7_dk.spf-protect.com -all

📨 DMARC

Policy	Record (_dmarc.thirty7.dk)
p=quarantine	v=DMARC1; p=quarantine; sp=quarantine; aspf=r; adkim=r; rua=mailto:68bed34f6da5b@dmarc-dk.centerasecurity.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

🔗 TLSA / DANE6 records 104ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC124ms

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

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-1963.awsdns-53.co.uk
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

41ms

A

56ms

MX

41ms

AAAA

40ms

TXT

250ms

CAA

57ms

HTTPS

53ms

TLSA

104ms

SOA

0ms

MTA-STS

108ms

DNSSEC

124ms

SRV

92ms

Total

1004ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 08:16:49	1004ms	4 NS 4 A 3 MX	🔓 Insecure	View
2026-08-25 23:42:54	4351ms	4 NS 4 A 3 MX	🔓 Insecure	View
2026-06-28 15:13:38	1055ms	4 NS 4 A 3 MX	🔓 Insecure	View
2026-06-26 05:16:25	2632ms	4 NS 4 A 3 MX	🔓 Insecure	View
2026-06-23 12:41:46	1777ms	4 NS 4 A 3 MX	🔓 Insecure	View
2026-06-22 19:57:20	941ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 15:32:47	1398ms	4 NS 4 A 3 MX	🔓 Insecure	View