alster.dk DNS records

🖥️ Nameservers2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
grace.ns.cloudflare.com	108.162.192.159 172.64.32.159 173.245.58.159 2606:4700:50::adf5:3a9f 2803:f800:50::6ca2:c09f 2a06:98c1:50::ac40:209f	grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
henry.ns.cloudflare.com	108.162.193.176 172.64.33.176 173.245.59.176 2606:4700:58::adf5:3bb0 2803:f800:50::6ca2:c1b0 2a06:98c1:50::ac40:21b0	henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.77.34	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.204.2	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
22	300s	amir.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
23	300s	isaac.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
32	300s	linda.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4d22	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:cc02	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 47ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.77.34,172.67.204.2 ech=AEX+DQBBRwAgACDPbTCWcV+McLVVNspbOGWAbzzTs7tbSKf0Ltkd1UPwPAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4d22,2606:4700:3037::ac43:cc02

📝 TXT Records3 records 170ms

TXT Record
_ao4ry9lmtr1e9lt945hhgnr2dj1iyhn
google-site-verification=3eOqehlCsm_tAehDGBj99_2K6FAO3FSymBiFjhX3vL4
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF

Policy	Record (alster.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.alster.dk	TLMaWQg0DrMifAPnBmPCYn6kjVXEBjIgFvZzLnf4UZc
TXT	_acme-challenge.alster.dk	YQZIDEwp8LAS7xVU-WfULQCmkiwSyaDkTTGWyXVzryA

🔗 TLSA / DANE9 records 142ms

Service / Owner	Type	Cert association
SMTP _25._tcp.amir.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.amir.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.amir.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.isaac.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.isaac.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.isaac.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.linda.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.linda.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.linda.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC107ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413594739
Primary NS (MNAME)	grace.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

28ms

A

26ms

MX

39ms

AAAA

34ms

TXT

170ms

CAA

40ms

HTTPS

47ms

TLSA

142ms

SOA

0ms

MTA-STS

50ms

DNSSEC

107ms

SRV

63ms

Total

1601ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 02:56:16	1601ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-29 00:36:44	832ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-26 16:41:31	925ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-24 14:49:19	4645ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-07 22:38:28	1836ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-20 14:06:50	9573ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-16 11:30:53	10737ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-09 00:57:25	9717ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-21 06:28:08	1152ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-20 21:46:02	1332ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-16 12:49:08	2825ms	2 NS 2 A 3 MX	🔒 Secure	View