netgroup.dk

📜 Historical scan 2026-08-27 14:26:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

netgroup.dk is a .dk domain served by 2 nameservers (authns1.ngdc.net, authns2.ngdc.net). It was registered on 12 June 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.233.128.61 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by inbound-smtp.eu-west-1.amazonaws.com. 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 56ms

Nameserver	IP addresses	PTR	ASN / ISP
authns1.ngdc.net	2001:1448:0:a800::53 217.30.38.181	authns1.ngdc.net dns1.sentia.dk	AS47292 Sentia Denmark A/S AS47292 Sentia Denmark A/S
authns2.ngdc.net	2001:1448:0:a500::53 217.30.38.27	authns2.ngdc.net dns2.sentia.dk	AS47292 Sentia Denmark A/S AS47292 Sentia Denmark A/S

🌍 A Records#

1 records 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.233.128.61	3600s	—	AS8075	Microsoft Corporation	52.224.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 73ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	inbound-smtp.eu-west-1.amazonaws.com	18.200.203.69 54.155.140.59 54.76.31.185	ec2-18-200-203-69.eu-west-1.compute.amazonaws.com ec2-54-155-140-59.eu-west-1.compute.amazonaws.com ec2-54-76-31-185.eu-west-1.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	exch03.office.corp.netgroup.dk

🔷 AAAA Records (IPv6)#

1 records 58ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1448:240:83c::4d42:5832	3600s	—	AS47292	Sentia Denmark A/S	2001:1448:0:0:0:0:0:0/32	🇩🇰 Denmark	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 2033ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	webmail2.netgroup.dk
_sipfederationtls._tcp	1	100	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 233ms

TXT Record
v=spf1 ip4:77.66.88.50 include:registrarmail.net ip4:77.66.4.22 ip4:77.66.27.165 ip4:217.116.234.168 ip4:77.66.27.220 ip4:77.66.19.24 ip4:217.116.227.6 ip4:77.66.28.241 ip4:77.66.28.225 ip4:77.66.27.218 ip4:87.54.22.135 ip4:77.66.27.212 include:_spf.nimta.com include:spf.protection.outlook.com ip4:77.66.76.2 ip4:77.66.76.17 ip4:77.66.4.21 mx ~all

✉️ SPF#

Policy	Record (netgroup.dk)
~all (soft fail)	v=spf1 ip4:77.66.88.50 include:registrarmail.net ip4:77.66.4.22 ip4:77.66.27.165 ip4:217.116.234.168 ip4:77.66.27.220 ip4:77.66.19.24 ip4:217.116.227.6 ip4:77.66.28.241 ip4:77.66.28.225 ip4:77.66.27.218 ip4:87.54.22.135 ip4:77.66.27.212 include:_spf.nimta.com include:spf.protection.outlook.com ip4:77.66.76.2 ip4:77.66.76.17 ip4:77.66.4.21 mx ~all

📨 DMARC#

Policy	Record (_dmarc.netgroup.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:aslmubyn@ag.dmarcian.com; aspf=r;adkim=r

📬 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 20:59:19

www CNAME	prd-website-sentia-app.azurewebsites.net (all on azurewebsites.net) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.netgroup.dk
www vs bare domain	www does not resolve netgroup.dk: 52.233.128.61 2001:1448:240:83c::4d42:5832 (AS8075 AS47292) www.netgroup.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

145ms

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	2026081602
Primary NS (MNAME)	authns1.ngdc.net
Responsible (RNAME)	hostmaster@ngdc.net
Refresh	10800s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 07:28:55

Field	Value
Registrar	ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA
Registered	1997-06-12
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

56ms

63ms

73ms

AAAA

58ms

TXT

233ms

CAA

66ms

HTTPS

59ms

TLSA

148ms

SOA

0ms

MTA-STS

81ms

DNSSEC

145ms

SRV

2033ms

Total

2770ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 11:43:50	952ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-20 08:02:54	3484ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 14:26:29 shown	2770ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-16 18:19:40	2883ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-12 20:39:45	997ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-30 06:20:24	921ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 14:04:30	823ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:06:39	1584ms	2 NS 1 A 1 MX	🔓 Insecure