netgroup.dk DNS records

🖥️ Nameservers2 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 Records1 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 Records1 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 Records2 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 Records1 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

🔗 TLSA / DANE

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

🔐 DNSSEC145ms

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

🏷️ SOA0ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

56ms

A

63ms

MX

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
2026-08-27 14:26:29	2770ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-16 18:19:40	2883ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-12 20:39:45	997ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-30 06:20:24	921ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 14:04:30	823ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 13:06:39	1584ms	2 NS 1 A 1 MX	🔓 Insecure	View