root-systems.dk DNS records

🖥️ Nameservers2 records 41ms

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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	43200s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records3 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.gigahost.dk	89.186.169.85	—	AS47292 Sentia Denmark A/S
10	3600s	mx2.gigahost.dk	46.183.139.12	mx2.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx3.gigahost.dk	46.183.139.13	mx3.gigahost.dk	AS47292 Sentia Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	www.root-systems.dk → 46.183.138.100
🔶 Autoconfig	www.root-systems.dk → 46.183.138.100

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 83ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records4 records 174ms

TXT Record
protonmail-verification=634830c0d37208bf14f711cf97cbb2f3aa7b5f31
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk include:_spf.protonmail.ch -all
v=verifydomain MS=ms74232593

✉️ SPF

Policy	Record (root-systems.dk)
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk include:_spf.protonmail.ch -all

📨 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.root-systems.dk	www.root-systems.dk

🔗 TLSA / DANE

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

🔐 DNSSEC131ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

41ms

A

44ms

MX

67ms

AAAA

59ms

TXT

174ms

CAA

66ms

HTTPS

89ms

TLSA

77ms

SOA

0ms

MTA-STS

120ms

DNSSEC

131ms

SRV

83ms

Total

870ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 13:05:20	870ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-12 14:17:39	918ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-27 12:37:08	8624ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-18 03:21:50	2675ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-13 08:18:20	9006ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-27 07:13:54	625ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 16:16:09	1227ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 12:14:19	1186ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 05:56:17	901ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-17 23:27:11	657ms	2 NS 1 A 3 MX	🔒 Secure	View