korsgaardnielsen.dk DNS records

🖥️ Nameservers2 records 48ms

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 Records1 records 2037ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
194.36.0.242	43198s	—	AS207655	Day Telecom Company (ltd.)	194.36.0.0/24	🇮🇷 Iran	—

📧 MX Records5 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c0b::1b 2a00:1450:4010:c0b::1b 64.233.162.26	lo-in-f27.1e100.net lo-in-x1b.1e100.net li-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	korsgaardnielsen.dk → 194.36.0.242
🔶 Autoconfig	korsgaardnielsen.dk → 194.36.0.242

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.korsgaardnielsen.dk	korsgaardnielsen.dk

🔗 TLSA / DANE

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

🔐 DNSSEC129ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

48ms

A

2037ms

MX

43ms

AAAA

57ms

TXT

165ms

CAA

57ms

HTTPS

51ms

TLSA

386ms

SOA

0ms

MTA-STS

68ms

DNSSEC

129ms

SRV

79ms

Total

3057ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:34:35	3057ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-13 11:24:11	3405ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-17 11:31:07	2158ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-13 09:05:01	9468ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-23 11:51:28	1299ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-21 14:52:45	1114ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:35:24	2144ms	2 NS 1 A 5 MX	🔒 Secure	View