holdregnskab.dk

Records from scan: 2026-10-09 10:30:51 · 1224ms total · last checked 2026-10-16 23:10 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holdregnskab.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 27 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.193 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by holdregnskab-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.193	3600s	linux303.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holdregnskab-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca48::12 2a01:111:f403:ca48::c 2a01:111:f403:ca48::e 52.101.68.10 52.101.68.29 52.101.91.153 52.101.91.159	mail-db4pr02cu00204.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00207.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.136
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 52ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 94ms

TXT Record
MS=ms22305917
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (holdregnskab.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.holdregnskab.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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#

checked 2026-10-09 10:30:51

www	93.191.156.193 (AS48854) (address records, no CNAME)
www vs bare domain	Same network holdregnskab.dk: 93.191.156.193 (AS48854) www.holdregnskab.dk: 93.191.156.193 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026100100
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-11 11:09:37

Field	Value
Registrar	Simply.com A/S
Registered	2019-04-27
Expires	2027-04-30 (194d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
hold-regnskab.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

43ms

40ms

37ms

AAAA

29ms

TXT

94ms

CAA

33ms

HTTPS

28ms

TLSA

619ms

SOA

40ms

MTA-STS

46ms

DNSSEC

124ms

SRV

52ms

Total

1224ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:30:51 shown	1224ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-04 05:46:04	1188ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-02 02:06:48	2361ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-27 00:47:50	876ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-28 11:10:19	1606ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-20 04:12:44	1170ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:15:06	3253ms	4 NS 1 A 1 MX	🔒 Secure