shirtup.dk DNS records

🖥️ Nameservers2 records 96ms

Nameserver	IP addresses	PTR	ASN / ISP
isaac.ns.cloudflare.com	108.162.193.177 172.64.33.177 173.245.59.177 2606:4700:58::adf5:3bb1 2803:f800:50::6ca2:c1b1 2a06:98c1:50::ac40:21b1	isaac.ns.cloudflare.com isaac.ns.cloudflare.com isaac.ns.cloudflare.com isaac.ns.cloudflare.com isaac.ns.cloudflare.com isaac.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sue.ns.cloudflare.com	108.162.192.145 172.64.32.145 173.245.58.145 2606:4700:50::adf5:3a91 2803:f800:50::6ca2:c091 2a06:98c1:50::ac40:2091	sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 74ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.87.88	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.169.46	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 79ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.shirtup.dk	104.21.87.88 172.67.169.46 2606:4700:3031::ac43:a92e 2606:4700:3034::6815:5758	— — — —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.87.88
🔶 Autoconfig	172.67.169.46

🔷 AAAA Records (IPv6)2 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:a92e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:5758	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 67ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.87.88,172.67.169.46 ech=AEX+DQBBfwAgACAl533IcYXJW6qRoWgs+SnvMJ2J4HeTQMoPUhdZ2CFeYgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a92e,2606:4700:3034::6815:5758

📝 TXT Records1 records 291ms

TXT Record
v=spf1 a mx include:spf.shockmedia.email ~all

✉️ SPF

Policy	Record (shirtup.dk)
~all (soft fail)	v=spf1 a mx include:spf.shockmedia.email ~all

📨 DMARC

Policy	Record (_dmarc.shirtup.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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)

🔐 DNSSEC146ms

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	2410765424
Primary NS (MNAME)	isaac.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

96ms

A

74ms

MX

79ms

AAAA

60ms

TXT

291ms

CAA

55ms

HTTPS

67ms

TLSA

85ms

SOA

0ms

MTA-STS

132ms

DNSSEC

146ms

SRV

101ms

Total

1874ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 18:49:14	1874ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-25 11:27:28	772ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-31 20:08:16	1122ms	2 NS 2 A 1 MX	❓ Unknown	View
2026-07-17 16:01:54	1808ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 01:12:05	1258ms	2 NS 2 A 1 MX	🔓 Insecure	View