isc1.dk

📜 Historical scan 2026-06-19 13:33:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

isc1.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 20 December 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.isc1.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 125ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 129ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.isc1.dk	62.243.9.58	—	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 443ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	40	100	443	access.isc.dk

📝 TXT Records#

3 records 460ms

TXT Record
5rv9gjq61qrvfrsfd4vwsx7ytf7j9yyx
gg60m54v3kggbykpt26m3sm4dz03hdjl
v=spf1 ip4:62.243.9.58 a:mail.isc1.dk -all

✉️ SPF#

Policy	Record (isc1.dk)
-all (hard fail)	v=spf1 ip4:62.243.9.58 a:mail.isc1.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 2026-10-23 06:58:04

www	NXDOMAIN
www vs bare domain	Neither resolves isc1.dk: no address www.isc1.dk: no address
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
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#

252ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

124ms

Field	Value
Serial	2023082802
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-22 07:16:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-12-20
Expires	2026-12-31 (67d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
cetejendomme.dk	Punktum dk A/S (direct)
isc.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

125ms

128ms

129ms

AAAA

126ms

TXT

460ms

CAA

124ms

HTTPS

109ms

TLSA

304ms

SOA

124ms

MTA-STS

76ms

DNSSEC

252ms

SRV

443ms

Total

1101ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 06:58:04	620ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-27 09:36:58	521ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-29 13:25:50	473ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-23 17:16:12	656ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-21 18:51:26	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 13:33:17 shown	1101ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-17 20:17:40	606ms	2 NS 0 A 1 MX	🔒 Secure