penby.dk

📜 Historical scan 2026-09-10 01:31:15 · ← Latest scan

penby.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by penby-dk.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers

2 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records

🌍

No A records found

📧 MX Records

1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	penby-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::c 2a01:111:f403:ca21::a 2a01:111:f403:ca48::a 52.101.185.21 52.101.68.25 52.101.68.36 52.101.73.126	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am8pr83cu00106.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 → 40.104.116.40
🔶 Autoconfig	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

2 records 230ms

TXT Record
MS=ms32283698
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

latest probe, not this scan · checked 2026-10-01 07:59:41

www CNAME	autodiscover.outlook.com (all on outlook.com)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.penby.dk	autodiscover.outlook.com

🔗 TLSA / DANE

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

🔐 DNSSEC

201ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA

0ms

Field	Value
Serial	2026090701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

63ms

70ms

62ms

AAAA

89ms

TXT

230ms

CAA

73ms

HTTPS

91ms

TLSA

192ms

SOA

0ms

MTA-STS

110ms

DNSSEC

201ms

SRV

117ms

Total

1768ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-10-01 07:59:41	1301ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-30 04:09:11	967ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-10 01:31:15 shown	1768ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-22 17:41:11	5538ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-08 23:14:55	9540ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-18 03:34:33	8206ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-10 01:37:24	2573ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-18 04:46:36	1610ms	2 NS 0 A 1 MX	🔒 Secure