subsero.dk

📜 Historical scan 2026-10-02 18:54:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

subsero.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.247.67.66 is hosted by Rackhosting.com ApS (AS31590) in Denmark. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.247.67.66	3600s	vps465.rackhosting.com	AS31590	Rackhosting.com ApS	77.247.64.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	172.253.130.26 172.253.130.27 172.253.152.27 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1a 2a00:1450:4010:c20::1a 2a00:1450:4010:c20::1b 2a00:1450:4010:c22::1b 64.233.162.26 64.233.162.27	yulppbn-in-f26.1e100.net yulppbn-in-f27.1e100.net yulpptr-in-f27.1e100.net li-in-x1a.1e100.net li-in-f26.1e100.net yulppbn-in-f26.1e100.net yulppbn-in-f27.1e100.net yulpptr-in-f27.1e100.net li-in-f26.1e100.net li-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	77.247.67.66
🔶 Autoconfig	77.247.67.66

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 142ms

TXT Record
google-site-verification=jKK9VFS2YQB37ij055f9rCCmrW_3jnKXJwbQQzwzP4M
v=spf1 ip4:195.245.230.0/23 ip4:194.106.220.0/23 ip4:193.109.254.0/23 ip4:117.120.16.0/21 ip4:95.131.104.0/21 ip4:85.158.136.0/21 ip4:67.219.240.0/20 ip4:216.82.240.0/20 include:_spf.google.com include:spf.messagelabs.com include:servers.mcsv.net ~all

✉️ SPF#

Policy	Record (subsero.dk)
~all (soft fail)	v=spf1 ip4:195.245.230.0/23 ip4:194.106.220.0/23 ip4:193.109.254.0/23 ip4:117.120.16.0/21 ip4:95.131.104.0/21 ip4:85.158.136.0/21 ip4:67.219.240.0/20 ip4:216.82.240.0/20 include:_spf.google.com include:spf.messagelabs.com include:servers.mcsv.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 13:41:23

www	77.247.67.66 (AS31590) (address records, no CNAME)
www vs bare domain	Same network subsero.dk: 77.247.67.66 (AS31590) www.subsero.dk: 77.247.67.66 (AS31590)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

58ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026060101
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

42ms

36ms

49ms

AAAA

24ms

TXT

142ms

CAA

27ms

HTTPS

28ms

TLSA

85ms

SOA

27ms

MTA-STS

57ms

DNSSEC

58ms

SRV

54ms

Total

455ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:41:23	875ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 12:12:06	521ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 18:54:34 shown	455ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:14:08	564ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 05:38:26	422ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 23:45:19	603ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:34:29	1330ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 07:37:14	1705ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 22:58:49	721ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 05:55:12	790ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 08:29:42	868ms	2 NS 1 A 1 MX	🔒 Secure