rblm.dk DNS records

🖥️ Nameservers2 records 53ms

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
198.202.211.1	600s	—	AS209242	Cloudflare London, LLC	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
100	3600s	rblm-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::5 2a01:111:f403:ca04::6 2a01:111:f403:ca09::e 52.101.68.16 52.101.68.18 52.101.68.36 52.101.73.6	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 79ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records5 records 180ms

TXT Record
apple-domain-verification=IKp83wnWhwpWzbPO
DEpurMfQPztZ+fwfhf190H4bIMYnwzOWM50jfqcS4pa/s4olh3DHskLyTs+kkqIyh/7/Suof7kzgfkidixCfGg==
extensis-domain-verification=1354c9a6-2750-4ca7-b681-18416887e21c
google-site-verification=j1SOWwqg__iqGNzqP2ZuCytdK_o84-WFGRyPE0DIW0g
v=spf1 mx ip4:185.170.29.96 a:smtp-relay.ip.nianet.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (rblm.dk)
-all (hard fail)	v=spf1 mx ip4:185.170.29.96 a:smtp-relay.ip.nianet.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.rblm.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_rapport@rblm.dk; ruf=mailto:dmarc_rapport@rblm.dk; fo=1;

📬 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)

🔐 DNSSEC78ms

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

📋 RegistrationWHOIS fetched 2026-07-13 20:43:32

Field	Value
Registrar	ONE.COM A/S
Registered	1998-06-23
Expires	2027-06-30 (296d)

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

37ms

MX

37ms

AAAA

43ms

TXT

180ms

CAA

36ms

HTTPS

39ms

TLSA

1057ms

SOA

0ms

MTA-STS

51ms

DNSSEC

78ms

SRV

79ms

Total

1963ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-11 23:25:35	1963ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 04:02:05	2814ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 20:42:23	5977ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 12:14:16	1445ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 07:28:00	2850ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 19:55:38	1119ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 01:31:53	3850ms	2 NS 1 A 1 MX	🔒 Secure	View