zkurs.dk DNS records

🖥️ Nameservers2 records 45ms

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 Records4 records 2040ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	598s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	598s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	598s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	598s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zkurs-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::3 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.10 52.101.68.21 52.101.68.39 52.101.73.6	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am6pr04cu00306.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 61ms

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

📝 TXT Records3 records 178ms

TXT Record
google-site-verification=luuG30sQpoxnGk89eLaHsAgQ1hUQtyuxs5jueg3VfH4
MS=ms81563329
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.zkurs.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC76ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082002
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

NS

45ms

A

2040ms

MX

32ms

AAAA

44ms

TXT

178ms

CAA

42ms

HTTPS

46ms

TLSA

262ms

SOA

0ms

MTA-STS

55ms

DNSSEC

76ms

SRV

61ms

Total

2833ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 19:24:26	2833ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-20 18:13:41	2118ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-28 15:43:04	6208ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-26 08:43:26	3905ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-23 18:54:24	1123ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 06:46:17	2286ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-20 16:05:45	1504ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-20 06:28:12	1472ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-20 04:06:15	3094ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-18 04:11:38	880ms	2 NS 4 A 1 MX	🔒 Secure	View