rustbook.dk

📜 Historical scan 2026-08-26 15:15:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rustbook.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 8 October 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.195.185.220 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by he.hostonline.dk, mx-backup.hostonline.dk. The zone is DNSSEC-signed and validates, 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#

3 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.hostonline.dk	217.195.185.243 2a02:188:6004:14::10	ns4.hostonline.dk ns4.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns5.hostonline.dk	217.195.185.244 2a02:188:6004:14::11	ns5.hostonline.dk ns5.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns6.hostonline.dk	85.191.126.85	ns6.hostonline.dk	AS204274 AURA Fiber A/S

🌍 A Records#

1 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.195.185.220	3600s	webhotel12.hostonline.dk	AS31027	GlobalConnect A/S	217.195.176.0/20	🇩🇰 Denmark	—

📧 MX Records#

2 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	he.hostonline.dk	217.195.185.200 2a02:188:164::100	he.hostonline.dk he.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
30	43200s	mx-backup.hostonline.dk	217.195.185.201 2a02:188:6004:15::12	mx-backup.hostonline.dk spamfront2.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.hostonline.dk → 217.195.185.209

🔷 AAAA Records (IPv6)#

1 records 30ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:188:6004:10::28	3600s	webhotel12.hostonline.dk	AS31027	GlobalConnect A/S	2a02:188:0:0:0:0:0:0/30	🇩🇰 Denmark	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 130ms

TXT Record
v=spf1 a mx include:_spf.hostonline.dk -all

✉️ SPF#

Policy	Record (rustbook.dk)
-all (hard fail)	v=spf1 a mx include:_spf.hostonline.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 2026-10-15 10:28:47

www CNAME	rustbook.dk (all on rustbook.dk) → 217.195.185.220 2a02:188:6004:10::28 (AS31027)
www vs bare domain	Same network rustbook.dk: 217.195.185.220 2a02:188:6004:10::28 (AS31027) www.rustbook.dk: 217.195.185.220 2a02:188:6004:10::28 (AS31027)
Wildcard	No
Denial of existence	NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082602
Primary NS (MNAME)	ns4.hostonline.dk
Responsible (RNAME)	hostmaster@hostonline.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	172800s

📋 Registration#

WHOIS fetched 2026-10-15 10:38:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-10-08
Expires	2027-10-07 (354d)

🔗 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#

33ms

39ms

28ms

AAAA

30ms

TXT

130ms

CAA

19ms

HTTPS

22ms

TLSA

1396ms

SOA

0ms

MTA-STS

47ms

DNSSEC

103ms

SRV

48ms

Total

1972ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 10:28:47	3152ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-11 02:19:13	616ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-05 07:03:13	1311ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-01 06:45:28	533ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-01 03:45:20	1141ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-30 03:38:26	519ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-25 16:36:51	2414ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-21 12:06:15	831ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-14 08:52:10	805ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-07 06:43:58	2573ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-03 07:38:18	825ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-31 09:38:13	2895ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-26 15:15:36 shown	1972ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-21 16:11:24	5242ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-18 08:05:47	10046ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-11 11:40:46	2960ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-07 01:52:11	1005ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-27 06:19:27	2777ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-23 03:31:51	1629ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-17 20:20:53	952ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-08 17:14:59	16974ms	3 NS 1 A 2 MX	🔒 Secure
2026-07-02 22:13:00	3320ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-29 22:53:39	637ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-29 20:49:48	1636ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-25 11:21:11	2872ms	3 NS 1 A 2 MX	🔒 Secure