usbach.dk

📜 Historical scan 2026-09-27 14:36:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

usbach.dk is a .dk domain served by 2 nameservers (jonah.ns.cloudflare.com, sharon.ns.cloudflare.com). It was registered on 15 September 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.125 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by usbach-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
jonah.ns.cloudflare.com	108.162.193.186 172.64.33.186 173.245.59.186 2606:4700:58::adf5:3bba 2803:f800:50::6ca2:c1ba 2a06:98c1:50::ac40:21ba	jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sharon.ns.cloudflare.com	108.162.192.221 172.64.32.221 173.245.58.221 2606:4700:50::adf5:3add 2803:f800:50::6ca2:c0dd 2a06:98c1:50::ac40:20dd	sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.125	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.176.132	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	usbach-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca21::e 52.101.181.153 52.101.185.114 52.101.68.21 52.101.73.120	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-db4pr02cu00205.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 → 40.104.116.56
🔶 Autoconfig	104.21.31.125

🔷 AAAA Records (IPv6)#

2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b084	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:1f7d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.125,172.67.176.132 ech=AEX+DQBBhgAgACBthnc1a7KXJW+xXnSl+BBKNkMHDHTPlWS87+NqyNOTTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b084,2606:4700:3034::6815:1f7d

📝 TXT Records#

2 records 178ms

TXT Record
MS=ms14320017
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.usbach.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:8716cb38c83b49a880d457b057865d36@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 04:26:26

www	104.21.31.125 172.67.176.132 2606:4700:3033::ac43:b084 2606:4700:3034::6815:1f7d (AS13335) (address records, no CNAME)
www vs bare domain	Same network usbach.dk: 104.21.31.125 172.67.176.132 2606:4700:3033::ac43:b084 2606:4700:3034::6815:1f7d (AS13335) www.usbach.dk: 104.21.31.125 172.67.176.132 2606:4700:3033::ac43:b084 2606:4700:3034::6815:1f7d (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-usbach-dk._domainkey.usbach.a-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-usbach-dk._domainkey.usbach.a-v1.dkim.mail.microsoft	RSA · ~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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.usbach.dk	UEvT6EntppmibBOkEh1sI3glmtAYMFP1HzBW5e5Q1OM
TXT	_acme-challenge.usbach.dk	oTNAYKxsBqmfSzOMRTfe2IrvJAdpapHDb4ybADm6VCI

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415920869
Primary NS (MNAME)	jonah.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 01:18:04

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-09-15
Expires	2027-09-30 (339d)

🔗 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#

37ms

34ms

40ms

AAAA

28ms

TXT

178ms

CAA

46ms

HTTPS

41ms

TLSA

640ms

SOA

0ms

MTA-STS

57ms

DNSSEC

110ms

SRV

89ms

Total

1325ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 04:26:26	688ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 17:13:47	1081ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 20:04:21	1206ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 19:54:20	1019ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 14:36:25 shown	1325ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 14:00:11	1242ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 00:19:34	1568ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 00:07:52	1341ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 01:33:11	2798ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 04:39:47	2200ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-05 04:09:21	1004ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 16:21:29	1007ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 18:07:38	2836ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 23:50:35	969ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 07:12:04	10996ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-05 20:24:44	2140ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-01 09:20:28	1154ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 16:24:26	1526ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 21:01:14	1023ms	2 NS 2 A 1 MX	🔓 Insecure