knef.dk DNS records

🖥️ Nameservers2 records 53ms

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 Records7 records 73ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a 64.233.162.27	lt-in-f26.1e100.net lt-in-x1a.1e100.net li-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.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
20	43200s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	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
30	43200s	aspmx4.googlemail.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	knef.dk.s3-website-us-east-1.amazonaws.com → 16.15.183.172
🔶 Autoconfig	knef.dk.s3-website-us-east-1.amazonaws.com → 16.15.230.74

🔷 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.knef.dk	knef.dk.s3-website-us-east-1.amazonaws.com
TXT	knef.dk.s3-website-us-east-1.amazonaws.com	0479bac704ece97eba11f6143a258135

🔗 TLSA / DANE

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

🔐 DNSSEC106ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081701
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

53ms

A

64ms

MX

73ms

AAAA

54ms

TXT

260ms

CAA

79ms

HTTPS

66ms

TLSA

150ms

SOA

0ms

MTA-STS

169ms

DNSSEC

106ms

SRV

159ms

Total

1383ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 11:59:04	1383ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-08-27 13:30:47	3010ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-08-18 05:13:58	1856ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-08-08 19:17:16	5615ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-07-17 13:54:31	1489ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-06-29 21:22:51	1055ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-06-25 20:20:02	1041ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-06-22 02:20:34	983ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-06-18 18:59:08	1410ms	2 NS 0 A 7 MX	🔒 Secure	View
2026-06-17 20:34:35	1150ms	2 NS 0 A 7 MX	🔒 Secure	View