hydra.dk

📜 Historical scan 2026-10-04 16:06:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

hydra.dk is a .dk domain served by 2 nameservers (donna.ns.cloudflare.com, rocky.ns.cloudflare.com). It was registered on 29 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.46.251 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by hydra-dk.mail.protection.outlook.com, ms67762136.msv1.invalid. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
donna.ns.cloudflare.com	108.162.192.151 172.64.32.151 173.245.58.151 2606:4700:50::adf5:3a97 2803:f800:50::6ca2:c097 2a06:98c1:50::ac40:2097	donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rocky.ns.cloudflare.com	108.162.193.227 172.64.33.227 173.245.59.227 2606:4700:58::adf5:3be3 2803:f800:50::6ca2:c1e3 2a06:98c1:50::ac40:21e3	rocky.ns.cloudflare.com rocky.ns.cloudflare.com rocky.ns.cloudflare.com rocky.ns.cloudflare.com rocky.ns.cloudflare.com rocky.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.46.251	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.169.141	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	hydra-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca09::26 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 52.101.103.36 52.101.209.28 52.101.68.27 52.101.73.145	mail-db9pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
80	300s	ms67762136.msv1.invalid	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.169.141

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2efb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:a98d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.46.251,172.67.169.141 ech=AEX+DQBBrwAgACB3V6T2X69/mCGQn8NhU8fkBpvDcuxha8C+xpuUHFRPGQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2efb,2606:4700:3033::ac43:a98d

🔌 SRV Records#

1 records 64ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	0	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 169ms

TXT Record
hydra-workwear-web.azurewebsites.net
knowbe4-site-verification=7d0d1924defa9b6f10ebdcb8dd70c99d
MS=ms48426115
TKUrnxIpFIlmzhteGyPxL0X28YfErkSa8o9TayApKp7VeNcXbzOuCp1V0EkNY6ukAHq2Xwpq988YmlrhxZBHfw==
v=spf1 include:_spf16900.spfprotect.com -all

✉️ SPF#

Policy	Record (hydra.dk)
-all (hard fail)	v=spf1 include:_spf16900.spfprotect.com -all

📨 DMARC#

Policy	Record (_dmarc.hydra.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6453b21641c80@dmarc.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 23:02:54

www	104.21.46.251 172.67.169.141 2606:4700:3031::6815:2efb 2606:4700:3033::ac43:a98d (AS13335) (address records, no CNAME)
www vs bare domain	Same network hydra.dk: 104.21.46.251 172.67.169.141 2606:4700:3031::6815:2efb 2606:4700:3033::ac43:a98d (AS13335) www.hydra.dk: 104.21.46.251 172.67.169.141 2606:4700:3031::6815:2efb 2606:4700:3033::ac43:a98d (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-hydra-dk._domainkey.hydraspecma.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-hydra-dk._domainkey.hydraspecma.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

124ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2416595449
Primary NS (MNAME)	donna.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 23:20:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-11-29
Expires	2026-12-31 (67d)

🔗 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#

38ms

39ms

27ms

AAAA

39ms

TXT

169ms

CAA

32ms

HTTPS

42ms

TLSA

643ms

SOA

45ms

MTA-STS

62ms

DNSSEC

124ms

SRV

64ms

Total

1483ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 23:02:54	685ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-04 16:06:11 shown	1483ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-29 15:26:24	1462ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-25 02:04:01	1053ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-22 07:57:14	2241ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-20 07:10:49	1933ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-10 04:17:27	11297ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-03 03:00:57	995ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 01:27:27	2640ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 17:54:41	1910ms	2 NS 2 A 2 MX	🔓 Insecure