istopby.dk

📜 Historical scan 2026-06-27 10:16:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

istopby.dk is a .dk domain served by 2 nameservers (ns01.hostnet.nl, ns02.hostnet.nl). It was registered on 30 June 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.184.0.200 is hosted by One.com A/S (AS51468) in Denmark. The zone is not DNSSEC-signed, publishes a 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#

2 records 325ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.hostnet.nl	195.206.121.13 2001:67c:28cc::13	ns1.hostnet.nl ns1.hostnet.nl	AS197495 One.com A/S AS197495 One.com A/S
ns02.hostnet.nl	185.10.11.13 2001:67c:3c0::13	ns2.hostnet.nl ns2.hostnet.nl	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 216ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.184.0.200	14400s	balancing.hostnet.nl	AS51468	One.com A/S	91.184.0.0/19	🇩🇰 Denmark	Copenhagen

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	91.184.0.200
🔶 Autoconfig	91.184.0.200

🔷 AAAA Records (IPv6)#

1 records 211ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2268:1:0:f816:3eff:fe7b:63c6	14400s	—	AS197902	Hostnet B.V.	2a02:2268:0:0:0:0:0:0/32	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 588ms

TXT Record
v=spf1 include:_spf.hostnet.nl -all

✉️ SPF#

Policy	Record (istopby.dk)
-all (hard fail)	v=spf1 include:_spf.hostnet.nl -all

📨 DMARC#

Policy	Record (_dmarc.istopby.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-09 13:01:09

www CNAME	istopby.dk (all on istopby.dk) → 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902)
www vs bare domain	Same network istopby.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902) www.istopby.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

350ms

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

🏷️ SOA#

201ms

Field	Value
Serial	2026011401
Primary NS (MNAME)	ns01.hostnet.nl
Responsible (RNAME)	hostmaster@hostnet.nl
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 12:01:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-06-30
Expires	2027-06-30 (250d)

🔗 Same registrant#

1 domain

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
restauranttoday.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

325ms

216ms

218ms

AAAA

211ms

TXT

588ms

CAA

208ms

HTTPS

346ms

TLSA

1052ms

SOA

201ms

MTA-STS

260ms

DNSSEC

350ms

SRV

325ms

Total

2104ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:01:09	942ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-28 05:10:11	460ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-17 21:21:06	2385ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-27 19:21:21	883ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-27 03:04:51	883ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-25 10:57:34	1328ms	2 NS 1 A 0 MX	🔓 Insecure
2026-07-15 17:56:45	597ms	2 NS 1 A 0 MX	❓ Unknown
2026-06-27 10:16:04 shown	2104ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-17 17:43:39	2473ms	2 NS 1 A 0 MX	🔓 Insecure