sigma.dk

📜 Historical scan 2026-08-28 09:55:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sigma.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 5 July 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, publishes a 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#

5 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	3600s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 191ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	172.253.130.27 2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1b 2a00:1450:4010:c08::1b 64.233.164.26 64.233.164.27 64.233.165.26 64.233.165.27	yulppbn-in-f27.1e100.net lf-in-f26.1e100.net lf-in-x1a.1e100.net lf-in-f27.1e100.net lf-in-x1b.1e100.net lg-in-f26.1e100.net lg-in-x1a.1e100.net lg-in-x1b.1e100.net lg-in-f27.1e100.net lf-in-f26.1e100.net lf-in-f27.1e100.net lg-in-f26.1e100.net lg-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 AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	sigma.dk → 46.183.138.100
🔶 Autoconfig	sigma.dk → 46.183.138.100

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 202ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records#

4 records 328ms

TXT Record
google-site-verification=2_l32IHTWFbuP7z1FVybre-Y6qlgdXhLqKZqvBrUVFw
google-site-verification=HcLHUeLaskIgBlkvSUVrGQ4Txs1jqbz72skyKBMDr1E
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk include:_spf.google.com -all

✉️ SPF#

Policy	Record (sigma.dk)
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.sigma.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:nrj@sigma.dk;

📬 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 2026-10-15 19:39:03

www CNAME	sigma.dk (all on sigma.dk) → 46.183.138.100 (AS47292)
www vs bare domain	Same network sigma.dk: 46.183.138.100 (AS47292) www.sigma.dk: 46.183.138.100 (AS47292)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~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: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.sigma.dk	sigma.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

83ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082701
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@sigma.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-15 20:02:25

Field	Value
Registrar	GIGAHOST ApS
Registered	1996-07-05
Expires	2027-09-30 (345d)

🔗 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#

44ms

43ms

191ms

AAAA

48ms

TXT

328ms

CAA

57ms

HTTPS

49ms

TLSA

52ms

SOA

0ms

MTA-STS

83ms

DNSSEC

83ms

SRV

202ms

Total

1087ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 19:39:03	868ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-08 05:02:47	2285ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-06 03:22:03	1103ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-05 03:19:22	356ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-04 02:48:55	125ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-03 02:45:50	137ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-02 02:44:38	1899ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-01 02:39:49	982ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-28 02:03:51	2854ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-24 14:40:39	922ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-20 11:06:42	1305ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-16 01:30:08	995ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-04 06:59:08	774ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-28 09:55:35 shown	1087ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-27 17:58:11	925ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-20 18:37:49	3937ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-13 20:38:33	1553ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-06 02:15:28	1960ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-30 20:28:27	10203ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-23 03:55:17	1605ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-17 03:59:02	9143ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-11 12:11:38	1763ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-03 21:35:57	13141ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-01 21:39:20	1021ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-21 17:16:48	539ms	5 NS 1 A 1 MX	🔓 Insecure