guldfeldt.dk DNS records

🖥️ Nameservers2 records 90ms

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 90ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.12	600s	prolinux100.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records3 records 83ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	guldfeldt-dk.mx1-dk.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	guldfeldt-dk.mx2-dk.mailanyone.net	192.162.219.155 2001:978:2a01:0:192:162:217:4	mx41.electric.net —	AS16509 Amazon.com, Inc. AS174 Cogent Communications, LLC
30	3600s	guldfeldt-dk.mx3-dk.mailanyone.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	185.21.40.12

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 326ms

TXT Record
_cthzxm9g6m1oi79wfk01isnuqxhcpf5
2UxtS75pMHlqwLZjAzMflSZUbqOiXKfejKeZ481cQ/taR9gKvrr4dl6Y69p+UFNSCB1hNz7fZb958Oa8I2By0Q==
53l71l6w72bv3785lsnfcfr05bsdr5fv
MS=ms66543641
v=spf1 include:spf.protection.outlook.com include:spf.mailanyone.net include:docs.itagil.dk include:spf.curanet.dk mx a:mail.hjsas.dk -all

✉️ SPF

Policy	Record (guldfeldt.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.mailanyone.net include:docs.itagil.dk include:spf.curanet.dk mx a:mail.hjsas.dk -all

📨 DMARC

Policy	Record (_dmarc.guldfeldt.dk)
p=reject	v=DMARC1; p=reject; 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)

🔐 DNSSEC212ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090101
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

90ms

A

90ms

MX

83ms

AAAA

111ms

TXT

326ms

CAA

85ms

HTTPS

99ms

TLSA

151ms

SOA

0ms

MTA-STS

134ms

DNSSEC

212ms

SRV

222ms

Total

1924ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 10:26:47	1924ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-31 04:21:52	1819ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-27 09:58:09	2741ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-01 21:35:59	3444ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-01 09:15:25	1715ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-21 00:39:32	2539ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-20 05:32:32	2632ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-17 10:10:33	2735ms	2 NS 1 A 3 MX	🔒 Secure	View