nerenst.dk

📜 Historical scan 2026-07-04 10:49:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nerenst.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 July 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.106.165.30 is hosted by Fiberby ApS (AS42541) in Denmark. Mail is handled by mail.itiot.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 31ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.106.165.30	43200s	mail.itiot.dk	AS42541	Fiberby ApS	193.106.164.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mail.itiot.dk	193.106.165.30	mail.itiot.dk	AS42541 Fiberby ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	nerenst.dk → 193.106.165.30
🔶 Autoconfig	nerenst.dk → 193.106.165.30

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 144ms

TXT Record
v=spf1 a:mail.itiot.dk -all

✉️ SPF#

Policy	Record (nerenst.dk)
-all (hard fail)	v=spf1 a:mail.itiot.dk -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#

latest probe, not this scan · checked 2026-10-08 00:12:59

www CNAME	nerenst.dk (all on nerenst.dk) → 193.106.165.30 (AS42541)
www vs bare domain	Same network nerenst.dk: 193.106.165.30 (AS42541) www.nerenst.dk: 193.106.165.30 (AS42541)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.nerenst.dk	nerenst.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

51ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070301
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 2026-10-05 01:11:02

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-07-22
Expires	2027-07-31 (281d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

30ms

37ms

AAAA

31ms

TXT

144ms

CAA

31ms

HTTPS

54ms

TLSA

76ms

SOA

0ms

MTA-STS

42ms

DNSSEC

51ms

SRV

63ms

Total

763ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 00:12:59	536ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 01:02:29	722ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 23:12:27	693ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 06:36:06	1178ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 17:57:36	1036ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 21:13:25	6909ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-19 20:34:27	6831ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-18 20:22:53	2567ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 21:46:50	6829ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 10:49:58 shown	763ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:00:14	1019ms	2 NS 1 A 1 MX	🔒 Secure