ncert.dk DNS records

🖥️ Nameservers2 records 61ms

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 Records5 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 74.125.131.26	lr-in-x1b.1e100.net lr-in-f27.1e100.net lu-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	43200s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt4.aspmx.l.google.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 189ms

TXT Record
google-site-verification=A3gW3iN_WNlXAv0JcxAKTfXtv3titFF8K5nU76ks6cQ
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (ncert.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.ncert.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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)

🔐 DNSSEC117ms

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	2026080701
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

61ms

A

73ms

MX

71ms

AAAA

63ms

TXT

189ms

CAA

60ms

HTTPS

67ms

TLSA

58ms

SOA

0ms

MTA-STS

72ms

DNSSEC

117ms

SRV

79ms

Total

814ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 22:47:48	814ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-08-09 20:33:39	4396ms	2 NS 0 A 0 MX	🔒 Secure	View
2026-07-08 18:53:08	25024ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-07-02 23:41:15	2447ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-27 07:06:53	1185ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-26 21:19:56	696ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-25 18:42:12	949ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-18 01:29:08	843ms	2 NS 0 A 5 MX	🔒 Secure	View