holm-halby.dk

Records from scan: 2026-10-21 01:37:25 · 989ms total · last checked 2026-10-26 04:05 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holm-halby.dk is a .dk domain served by 2 nameservers (ns1.dnshost.net, ns2.dnshost.net). It was registered on 22 May 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.126.78.209 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx.mentor-it.dk. The zone is not DNSSEC-signed, 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#

2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnshost.net	2a0b:8e00::10 91.237.67.1	ns1.dnshost.net ns1.dnshost.net	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.dnshost.net	185.167.176.1 2a0b:8e00:1::10	ns2.dnshost.net ns2.dnshost.net	AS207021 ipcom GmbH AS1921 ipcom GmbH

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.126.78.209	300s	—	AS8075	Microsoft Corporation	20.64.0.0/10	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mx.mentor-it.dk	176.62.205.101 176.62.205.102 176.62.205.103 176.62.205.104	mx1.mentor-it.dk mx2.mentor-it.dk mx3.mentor-it.dk mx4.mentor-it.dk	AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 69ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 224ms

TXT Record
google-site-verification=_A9XGYhLkY1GWtDpbqyBjBY_ZK8H3PWQb9nijC83VpM
google-site-verification=wqlzwHc9qsFJ3ZiDAvl-FA3scp5RXyU13lhUWtCZ7dw
MS=ms33451324
ms28520100
ogtonfrrqefq8rf8ukkfbqapsg
v=spf1 include:spf.protection.outlook.com ip4:217.13.243.56 ip4:52.138.216.130 ip4:217.13.243.53 ip4:50.31.43.121 ip4:86.58.175.4/32 ip4:86.58.175.12/32 ip4:130.185.143.10 ip4:176.62.207.45 include:dksmtp.yulsn.io include:spf.flowmailer.net include:servers.mcsv.net include:mailgun.org include:spf.mentor-it.dk ip4:77.221.252.232/29 -all
Y1hq24B

✉️ SPF#

Policy	Record (holm-halby.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:217.13.243.56 ip4:52.138.216.130 ip4:217.13.243.53 ip4:50.31.43.121 ip4:86.58.175.4/32 ip4:86.58.175.12/32 ip4:130.185.143.10 ip4:176.62.207.45 include:dksmtp.yulsn.io include:spf.flowmailer.net include:servers.mcsv.net include:mailgun.org include:spf.mentor-it.dk ip4:77.221.252.232/29 -all

📨 DMARC#

Policy	Record (_dmarc.holm-halby.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=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#

checked 2026-10-21 01:37:25

www	20.126.78.209 (AS8075) (address records, no CNAME)
www vs bare domain	Same network holm-halby.dk: 20.126.78.209 (AS8075) www.holm-halby.dk: 20.126.78.209 (AS8075)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
dkim	dkim.holm-halby-dk.dkim.yulsn.io	RSA · ~1024 bit below 2048 bit
k1	dkim.mcsv.net	RSA · ~1024 bit below 2048 bit
s1	—	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: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

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

🏷️ SOA#

38ms

Field	Value
Serial	1782979111
Primary NS (MNAME)	ns1.dnshost.net
Responsible (RNAME)	zonemaster\@dnshost@net
Refresh	43200s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-14 17:15:35

Field	Value
Registrar	Name SRS AB
Registered	1997-05-22
Expires	2027-06-30 (246d)

🔗 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#

42ms

33ms

37ms

AAAA

40ms

TXT

224ms

CAA

34ms

HTTPS

33ms

TLSA

139ms

SOA

38ms

MTA-STS

63ms

DNSSEC

106ms

SRV

69ms

Total

989ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 01:37:25 shown	989ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-18 22:00:28	9583ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-03 13:24:19	2516ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 02:49:19	1860ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:28:59	2348ms	2 NS 1 A 1 MX	🔓 Insecure