back2zero.dk

📜 Historical scan 2026-06-25 16:31:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

back2zero.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 October 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.96 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, has no 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 161ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 162ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.96	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

7 records 165ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c03::1b	rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
2	3600s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
3	3600s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
4	3600s	aspmx2.googlemail.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	aspmx3.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
6	3600s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
7	3600s	aspmx5.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 161ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:8004:ff45:5225:c412	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 17:11:55

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Same network back2zero.dk: 46.30.211.38 (AS51468) www.back2zero.dk: 46.30.211.38 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

220ms

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

🏷️ SOA#

150ms

Field	Value
Serial	2026062201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-07 20:40:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-10-10
Expires	2026-10-31 (12d)

📋 WHOIS#

⏱️ Lookup Timing#

161ms

162ms

165ms

AAAA

161ms

TXT

301ms

CAA

168ms

HTTPS

160ms

TLSA

2094ms

SOA

150ms

MTA-STS

161ms

DNSSEC

220ms

SRV

165ms

Total

3503ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 14:18:39	701ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-24 02:38:59	936ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-18 13:22:34	4600ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-01 09:43:08	915ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-23 23:34:41	9712ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-24 12:33:40	17204ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-04 21:37:51	8841ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-28 16:55:27	840ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-25 16:31:20 shown	3503ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-22 11:14:29	905ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 05:17:26	1254ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-16 13:59:13	944ms	2 NS 1 A 7 MX	🔒 Secure