nerkon.dk

📜 Historical scan 2026-08-26 02:16:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nerkon.dk is a .dk domain served by 5 nameservers (ns.gransy.com, ns2.gransy.com, ns3.gransy.com and 2 more). It was registered on 30 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.11.227.76 is hosted by CASABLANCA INT a.s. (AS15685) in Czechia. Mail is handled by mail.nerkon.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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#

5 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.gransy.com	2001:19f0:5001:1caf:5400:1ff:fec5:8d50 45.76.90.43 77.78.104.149 95.179.136.180	— 45.76.90.43.vultrusercontent.com ns.gransy.com 95.179.136.180.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS15685 CASABLANCA INT a.s. AS20473 The Constant Company, LLC
ns2.gransy.com	2001:19f0:6801:474:5400:1ff:fec5:8efb 2001:19f0:7401:81e0:5400:1ff:fec5:8ef6 217.16.185.221 217.69.4.49 95.179.192.121	— — ns2.gransy.com 217.69.4.49.vultrusercontent.com 95.179.192.121.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS43541 VSHosting s.r.o. AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
ns3.gransy.com	109.74.7.71 2a02:750:7::2e7 2a02:750:8::32 46.21.100.103 77.78.126.35	109-74-7-71-static.glesys.net 2a02-750-7--2e7-static.glesys.net 2a02-750-8--32-static.glesys.net 46-21-100-103-static.glesys.net —	AS42708 Glesys AB AS42708 Glesys AB AS42708 Glesys AB AS42708 Glesys AB AS15685 CASABLANCA INT a.s.
ns4.gransy.com	2001:19f0:5401:69b:5400:1ff:fec5:8f3f 2a00:1a28:2010:1::89 66.42.94.136 80.67.7.209	— 2a00-1a28-2010-1--89-static.glesys.net 66.42.94.136.vultrusercontent.com 80-67-7-209-static.glesys.net	AS20473 The Constant Company, LLC AS42708 Glesys AB AS20473 The Constant Company, LLC AS42708 Glesys AB
ns5.gransy.com	2a02:750:5::538 31.192.227.223	2a02-750-5--538-static.glesys.net 31-192-227-223-static.glesys.net	AS42708 Glesys AB AS42708 Glesys AB

🌍 A Records#

1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.11.227.76	600s	backup.antee.cz	AS15685	CASABLANCA INT a.s.	217.11.227.0/24	🇨🇿 Czechia	—

📧 MX Records#

1 records 119ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	900s	mail.nerkon.dk	185.28.193.11 185.28.193.23 185.28.193.36 185.28.193.37 185.28.193.5 2001:1528:137::f1 82.208.29.194	mail.gransy.cz mail.gransy.cz mail.gransy.cz mail.gransy.cz mail.gransy.cz mail.gransy.com mail.gransy.cz	AS60592 Gransy s.r.o. AS60592 Gransy s.r.o. AS60592 Gransy s.r.o. AS60592 Gransy s.r.o. AS60592 Gransy s.r.o. AS15685 CASABLANCA INT a.s. AS15685 CASABLANCA INT a.s.

🔷 AAAA Records (IPv6)#

1 records 85ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1528:279:0:217:11:227:76	600s	backup.antee.cz	AS15685	CASABLANCA INT a.s.	2001:1528:0:0:0:0:0:0/32	🇨🇿 Czechia	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 620ms

TXT Record
v=spf1 a mx include:gransy.com

✉️ SPF#

Policy	Record (nerkon.dk)
no all — incomplete SPF	v=spf1 a mx include:gransy.com

📨 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 2026-10-11 07:21:52

www CNAME	nerkon.dk (all on nerkon.dk) → 217.11.227.76 2001:1528:279:0:217:11:227:76 (AS15685)
www vs bare domain	Same network nerkon.dk: 217.11.227.76 2001:1528:279:0:217:11:227:76 (AS15685) www.nerkon.dk: 217.11.227.76 2001:1528:279:0:217:11:227:76 (AS15685)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 4 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: none

warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2075ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2783500810
Primary NS (MNAME)	ns.gransy.com
Responsible (RNAME)	root@gransy.com
Refresh	86400s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 19:36:39

Field	Value
Registrar	Gransy s.r.o.
Registered	2025-09-30
Expires	2027-09-29 (347d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

61ms

98ms

119ms

AAAA

85ms

TXT

620ms

CAA

240ms

HTTPS

145ms

TLSA

211ms

SOA

0ms

MTA-STS

263ms

DNSSEC

2075ms

SRV

253ms

Total

5460ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-26 11:16:14	1629ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-26 02:16:55 shown	5460ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-19 19:42:52	44197ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-10 10:18:49	6065ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:15:11	11253ms	5 NS 1 A 1 MX	🔓 Insecure