tholstrup-ing.dk

Records from scan: 2026-10-01 07:59:50 · 1209ms total · last checked 2026-10-16 21:43 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tholstrup-ing.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 19 February 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.28 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by tholstruping-dk02c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 30ms

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 23ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.28	600s	vm1413.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tholstruping-dk02c.mail.protection.outlook.com	2a01:111:f403:ca09::20 2a01:111:f403:ca21::a 2a01:111:f403:ca21::e 2a01:111:f403:ca48::c 52.101.103.36 52.101.209.153 52.101.209.28 52.101.73.120	mail-as8pr05cu00400.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-am7pr02cu00300.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 53ms

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 91ms

TXT Record
MS=ms46620795
v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com -all

✉️ SPF#

Policy	Record (tholstrup-ing.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com -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#

checked 2026-10-08 13:16:00

www	185.21.40.28 (AS48854) (address records, no CNAME)
www vs bare domain	Same network tholstrup-ing.dk: 185.21.40.28 (AS48854) www.tholstrup-ing.dk: 185.21.40.28 (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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms

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

🏷️ SOA#

50ms

Field	Value
Serial	2026093000
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 2026-10-12 13:35:31

Field	Value
Registrar	Simply.com A/S
Registered	2018-02-19
Expires	2027-02-28 (133d)

🔗 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#

30ms

23ms

33ms

AAAA

30ms

TXT

91ms

CAA

28ms

HTTPS

29ms

TLSA

592ms

SOA

50ms

MTA-STS

42ms

DNSSEC

110ms

SRV

53ms

Total

1209ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 07:59:50 shown	1209ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-28 07:11:13	793ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-03 00:55:37	1561ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 20:28:43	1051ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 20:51:57	755ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 07:13:06	3946ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-23 03:19:12	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 10:43:01	1086ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 15:15:24	2144ms	4 NS 1 A 1 MX	🔒 Secure