sser.dk DNS records

🖥️ Nameservers2 records 37ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.40.202.37	600s	—	AS8075	Microsoft Corporation	20.40.0.0/14	🇺🇸 United States	Des Moines

📧 MX Records5 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c0b::1a 2a00:1450:4010:c0b::1a 64.233.164.26	lo-in-f26.1e100.net lo-in-x1a.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	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	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	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	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.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 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

🔗 TLSA / DANE

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

🔐 DNSSEC84ms

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

🏷️ SOA51ms

Field	Value
Serial	2026081001
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

37ms

A

37ms

MX

56ms

AAAA

38ms

TXT

169ms

CAA

54ms

HTTPS

44ms

TLSA

82ms

SOA

51ms

MTA-STS

56ms

DNSSEC

84ms

SRV

68ms

Total

5321ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-18 07:21:10	5321ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-12 20:13:48	6483ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-16 03:07:41	1194ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-13 08:46:01	1179ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-07 00:46:35	2193ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-26 08:31:16	1727ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-25 13:03:29	2135ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-24 04:46:03	1367ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-23 18:43:13	922ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:18:38	2561ms	2 NS 1 A 5 MX	🔒 Secure	View