jaholst.dk

📜 Historical scan 2026-06-19 17:23:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jaholst.dk is a .dk domain served by 2 nameservers (ian.ns.cloudflare.com, laylah.ns.cloudflare.com). It was registered on 7 March 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.208.56.217 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by jaholst-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
ian.ns.cloudflare.com	108.162.193.118 172.64.33.118 173.245.59.118 2606:4700:58::adf5:3b76 2803:f800:50::6ca2:c176 2a06:98c1:50::ac40:2176	ian.ns.cloudflare.com ian.ns.cloudflare.com ian.ns.cloudflare.com ian.ns.cloudflare.com ian.ns.cloudflare.com ian.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
laylah.ns.cloudflare.com	108.162.194.230 162.159.38.230 172.64.34.230 2606:4700:50::a29f:26e6 2803:f800:50::6ca2:c2e6 2a06:98c1:50::ac40:22e6	laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 93ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.208.56.217	300s	80.208.56.217.static.fibianet.dk	AS44869	FIBIA P/S	80.208.0.0/17	🇩🇰 Denmark	Silkeborg

📧 MX Records#

1 records 92ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	jaholst-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::4 2a01:111:f403:ca04::c 2a01:111:f403:ca09::2 52.101.68.25 52.101.68.32 52.101.68.5 52.101.68.8	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.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 → 40.98.16.10

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 140ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 268ms

TXT Record
MS=ms18323866
v=spf1 include:spf.protection.outlook.com ip4:80.208.56.217 -all

✉️ SPF#

Policy	Record (jaholst.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:80.208.56.217 -all

📨 DMARC#

Policy	Record (_dmarc.jaholst.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:97b8be3e98da4791a329009c06b24b75@dmarc-reports.cloudflare.net

📬 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 2026-10-25 00:00:10

www	104.21.35.221 172.67.180.60 2606:4700:3032::6815:23dd 2606:4700:3036::ac43:b43c (AS13335) (address records, no CNAME)
www vs bare domain	Same network jaholst.dk: 104.21.35.221 172.67.180.60 2606:4700:3032::6815:23dd 2606:4700:3036::ac43:b43c (AS13335) www.jaholst.dk: 104.21.35.221 172.67.180.60 2606:4700:3032::6815:23dd 2606:4700:3036::ac43:b43c (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-jaholst-dk._domainkey.jaholst.onmicrosoft.com	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

232ms

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

🏷️ SOA#

82ms

Field	Value
Serial	2406173159
Primary NS (MNAME)	ian.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-25 00:10:33

Field	Value
Registrar	ONE.COM A/S
Registered	2002-03-07
Expires	2034-04-30 (2741d)

🔗 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#

59ms

93ms

92ms

AAAA

88ms

TXT

268ms

CAA

83ms

HTTPS

79ms

TLSA

448ms

SOA

82ms

MTA-STS

112ms

DNSSEC

232ms

SRV

140ms

Total

1243ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 00:00:10	2425ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-03 22:57:40	1135ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-29 22:22:25	1146ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-24 08:21:51	1084ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-11 05:02:01	1475ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 22:21:08	1140ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-26 20:18:42	964ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-25 17:50:49	1788ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-16 22:03:40	5536ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-06 17:05:21	3443ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-01 22:54:53	1412ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-27 06:27:42	1663ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-24 04:58:15	2304ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-17 22:02:04	2773ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-16 13:03:59	3429ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-07 16:26:15	6393ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-02 11:44:47	2334ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-19 17:23:22 shown	1243ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 16:57:31	1047ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 19:50:46	1246ms	2 NS 1 A 1 MX	🔒 Secure