postbox.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
aaron.ns.cloudflare.com	108.162.195.150 162.159.44.150 172.64.35.150 2606:4700:58::a29f:2c96 2803:f800:50::6ca2:c396 2a06:98c1:50::ac40:2396	aaron.ns.cloudflare.com aaron.ns.cloudflare.com aaron.ns.cloudflare.com aaron.ns.cloudflare.com aaron.ns.cloudflare.com aaron.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
violet.ns.cloudflare.com	108.162.192.237 172.64.32.237 173.245.58.237 2606:4700:50::adf5:3aed 2803:f800:50::6ca2:c0ed 2a06:98c1:50::ac40:20ed	violet.ns.cloudflare.com violet.ns.cloudflare.com violet.ns.cloudflare.com violet.ns.cloudflare.com violet.ns.cloudflare.com violet.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.54.94	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.137.186	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:89ba	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:365e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.54.94,172.67.137.186 ech=AEX+DQBB5QAgACDyLQJ9OjSw/accdpvhYMWVwshMxBmJDK58OxnxxfknSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:89ba,2606:4700:3037::6815:365e

📝 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)

🔐 DNSSEC97ms

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	2413187385
Primary NS (MNAME)	aaron.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

43ms

A

48ms

MX

35ms

AAAA

43ms

TXT

205ms

CAA

35ms

HTTPS

48ms

TLSA

56ms

SOA

0ms

MTA-STS

63ms

DNSSEC

97ms

SRV

58ms

Total

1243ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 23:07:26	1243ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-27 03:10:26	9437ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 13:48:45	1712ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-23 09:27:47	2784ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-21 00:03:42	899ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-19 23:24:37	808ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-18 22:31:01	3321ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-17 21:09:15	804ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-16 00:03:44	871ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-13 11:14:40	798ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-11 23:09:04	1695ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-09 16:17:01	856ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-07 16:09:29	864ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-02 13:09:08	799ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-30 21:39:40	728ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 19:44:52	731ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 19:36:34	625ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 19:12:48	16521ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 18:53:39	2680ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 17:26:42	686ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 07:18:51	621ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 04:56:54	564ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-18 03:11:28	580ms	3 NS 1 A 0 MX	🔒 Secure	View