r-tec.dk

Records from scan: 2026-10-18 01:01:26 · 1151ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

r-tec.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rtec-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 49ms

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 Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.249.12	3600s	lb1.builder.nu	AS48854	team.blue Denmark A/S	212.237.248.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rtec-dk0c.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca3c::a 2a01:111:f403:ca48::a 2a01:111:f403:ca48::e 52.101.103.39 52.101.68.15 52.101.91.153 52.101.91.159	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00207.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 → 52.98.149.152
🔶 Autoconfig	212.237.249.12

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 103ms

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

📝 TXT Records#

2 records 169ms

TXT Record
MS=ms90699601
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (r-tec.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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

🧩 Web & zone#

checked 2026-10-18 01:01:26

www	212.237.249.12 (AS48854) (address records, no CNAME)
www vs bare domain	Same network r-tec.dk: 212.237.249.12 (AS48854) www.r-tec.dk: 212.237.249.12 (AS48854)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2026101701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 16:11:11

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-12-11
Expires	2026-12-31 (74d)

📋 WHOIS#

⏱️ Lookup Timing#

49ms

51ms

43ms

AAAA

31ms

TXT

169ms

CAA

91ms

HTTPS

38ms

TLSA

662ms

SOA

37ms

MTA-STS

50ms

DNSSEC

62ms

SRV

103ms

Total

1151ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 01:01:26 shown	1151ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 23:04:15	1423ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 17:22:07	2954ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 14:46:24	1089ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 11:23:33	1048ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 19:27:00	1168ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-28 21:08:43	5219ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 16:29:42	1845ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 18:41:30	970ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 12:59:41	1405ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 08:29:53	938ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 20:34:43	1954ms	2 NS 1 A 1 MX	🔒 Secure