renz-group.dk

Records from scan: 2026-10-09 09:29:00 · 2401ms total · last checked 2026-10-16 03:31 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

renz-group.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 28 October 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.31.143.90 is hosted by united-domains GmbH (AS202108) in Germany. Mail is handled by mail1.renzgroup.com, mail2.renzgroup.com. The zone is not DNSSEC-signed, 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#

3 records 74ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.udag.de	2001:8d8:fe:53:217:160:80:253 217.160.80.253	ns.udag.de ns.udag.de	AS8560 IONOS SE AS8560 IONOS SE
ns.udag.net	185.132.33.253 2607:f1c0:fe:53:185:132:33:253	ns.udag.net ns.udag.net	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns.udag.org	185.132.34.253 2607:f1c0:fe:53:185:132:34:253	ns.udag.org ns.udag.org	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited

🌍 A Records#

1 records 68ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.31.143.90	600s	—	AS202108	united-domains GmbH	89.31.142.0/23	🇩🇪 Germany	—

📧 MX Records#

2 records 77ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail1.renzgroup.com	217.7.26.227	mail1.renzgroup.com	AS3320 Deutsche Telekom AG
20	3600s	mail2.renzgroup.com	80.156.235.162	mail2.renzgroup.com	AS3320 Deutsche Telekom AG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	89.31.143.90
🔶 Autoconfig	89.31.143.90

🔷 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

🧩 Web & zone#

checked 2026-10-09 09:29:00

www	89.31.143.90 (AS202108) (address records, no CNAME)
www vs bare domain	Same network renz-group.dk: 89.31.143.90 (AS202108) www.renz-group.dk: 89.31.143.90 (AS202108)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

276ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

95ms

Field	Value
Serial	2023120103
Primary NS (MNAME)	ns.udag.de
Responsible (RNAME)	hostmaster@united-domains.de
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 21:17:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-10-28
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

74ms

68ms

77ms

AAAA

94ms

TXT

463ms

CAA

80ms

HTTPS

105ms

TLSA

344ms

SOA

95ms

MTA-STS

136ms

DNSSEC

276ms

SRV

182ms

Total

2401ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:29:00 shown	2401ms	3 NS 1 A 2 MX	🔓 Insecure
2026-10-08 09:26:32	902ms	3 NS 1 A 2 MX	🔓 Insecure
2026-09-30 23:58:07	1080ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-18 16:14:08	1140ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-17 13:30:23	2767ms	3 NS 1 A 2 MX	🔓 Insecure