astratech.dk

Records from scan: 2026-10-16 10:37:34 · 556ms total · last checked 2026-10-17 11:51 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

astratech.dk is a .dk domain served by 2 nameservers (kareem.ns.cloudflare.com, susan.ns.cloudflare.com). It was registered on 28 August 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.11.8 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
kareem.ns.cloudflare.com	108.162.195.22 162.159.44.22 172.64.35.22 2606:4700:58::a29f:2c16 2803:f800:50::6ca2:c316 2a06:98c1:50::ac40:2316	kareem.ns.cloudflare.com kareem.ns.cloudflare.com kareem.ns.cloudflare.com kareem.ns.cloudflare.com kareem.ns.cloudflare.com kareem.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
susan.ns.cloudflare.com	108.162.194.199 162.159.38.199 172.64.34.199 2606:4700:50::a29f:26c7 2803:f800:50::6ca2:c2c7 2a06:98c1:50::ac40:22c7	susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.8	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.147.108	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136
🔶 Autoconfig	104.21.11.8

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:936c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:b08	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.11.8,172.67.147.108 ech=AEX+DQBBRQAgACAxy7hz4ymFe09yKTZHPtgyNMs0CDJT9Nrfo2O4iPdoOwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:936c,2606:4700:3032::6815:b08

📝 TXT Records#

2 records 185ms

TXT Record
protonmail-verification=cb7f475e49e3c00c8832f6c103259e3d0354eaff
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (astratech.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.astratech.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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

🧩 Web & zone#

checked 2026-10-16 10:37:34

www	104.21.11.8 172.67.147.108 2606:4700:3031::ac43:936c 2606:4700:3032::6815:b08 (AS13335) (address records, no CNAME)
www vs bare domain	Same network astratech.dk: 104.21.11.8 172.67.147.108 2606:4700:3031::ac43:936c 2606:4700:3032::6815:b08 (AS13335) www.astratech.dk: 104.21.11.8 172.67.147.108 2606:4700:3031::ac43:936c 2606:4700:3032::6815:b08 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.astratech.dk	KWDt08_W_9ixWwDaMuOoUy-hqlvl_Yvj402pMsb7nik
TXT	_acme-challenge.astratech.dk	rpr8A8kuo7tYMWlg7pjxuT_1gP6ebWgZ7wP1m_rq-F0

🔗 TLSA / DANE#

4 records 90ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

67ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2417545307
Primary NS (MNAME)	kareem.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 11:28:35

Field	Value
Registrar	DANDOMAIN A/S
Registered	2023-08-28
Expires	2027-08-27 (313d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

29ms

32ms

AAAA

38ms

TXT

185ms

CAA

41ms

HTTPS

41ms

TLSA

90ms

SOA

28ms

MTA-STS

61ms

DNSSEC

67ms

SRV

111ms

Total

556ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 10:37:34 shown	556ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-14 10:09:25	1797ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-13 07:02:21	1412ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-12 02:20:46	940ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-08 00:24:21	552ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 00:55:59	605ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-14 22:12:55	2112ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-29 15:15:13	9849ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 12:46:50	9728ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-16 13:40:35	5682ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-15 02:31:51	1972ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-03 01:02:45	1114ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-25 02:12:47	6316ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-23 12:57:44	1184ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 20:44:53	3116ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 14:06:17	3214ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 13:46:11	848ms	2 NS 2 A 2 MX	🔓 Insecure