321go.dk

📜 Historical scan 2026-09-25 18:50:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

321go.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 July 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.57.241.43 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc and 1 more. 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 40ms

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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.57.241.43	3600s	87-57-241-43-static.dk.customer.tdc.net	AS3292	TDC Holding A/S	87.57.0.0/16	🇩🇰 Denmark	Vallensbæk Strand

📧 MX Records#

3 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
10	43200s	mx2.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
20	43200s	mx3.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	87.57.241.43
🔶 Autoconfig	87.57.241.43

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 177ms

TXT Record
v=spf1 include:_include.mxhotel.dk -all

✉️ SPF#

Policy	Record (321go.dk)
-all (hard fail)	v=spf1 include:_include.mxhotel.dk -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 2026-10-10 23:24:27

www	87.57.241.43 (AS3292) (address records, no CNAME)
www vs bare domain	Same network 321go.dk: 87.57.241.43 (AS3292) www.321go.dk: 87.57.241.43 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

error include:_include.mxhotel.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092001
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 2026-10-05 21:24:10

Field	Value
Registrar	ONE.COM A/S
Registered	2004-07-15
Expires	2027-07-31 (287d)

📋 WHOIS#

⏱️ Lookup Timing#

40ms

38ms

41ms

AAAA

32ms

TXT

177ms

CAA

35ms

HTTPS

36ms

TLSA

75ms

SOA

0ms

MTA-STS

62ms

DNSSEC

72ms

SRV

56ms

Total

890ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 23:24:27	761ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-05 21:03:13	2287ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-25 18:50:18 shown	890ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-23 09:53:32	1058ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-20 06:55:58	1318ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 12:42:42	852ms	2 NS 1 A 3 MX	🔒 Secure