gulstrom.dk DNS records

🖥️ Nameservers2 records 42ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.39.198	3600s	5.103.39.198.static.fibianet.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Ringsted

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	gulstrom-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca09::26 2a01:111:f403:ca09::9 52.101.68.18 52.101.68.36 52.101.68.39 52.101.73.155	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.24
🔶 Autoconfig	5.103.39.198

🔷 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.gulstrom.dk	gulstrom.dk

🔗 TLSA / DANE

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

🔐 DNSSEC80ms

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

🏷️ SOA0ms

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

42ms

A

46ms

MX

51ms

AAAA

45ms

TXT

4166ms

CAA

49ms

HTTPS

61ms

TLSA

369ms

SOA

0ms

MTA-STS

60ms

DNSSEC

80ms

SRV

4034ms

Total

5064ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 03:11:56	5064ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-31 16:17:11	1027ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 02:23:33	1430ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 01:26:25	1172ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 03:59:09	5786ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 04:46:29	4546ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 06:52:02	5269ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 00:29:22	9302ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 12:15:22	1723ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:13:25	3567ms	2 NS 1 A 1 MX	🔒 Secure	View