bookstudie.dk

Records from scan: 2026-10-09 07:30:53 · 1534ms total · last checked 2026-10-22 20:34 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bookstudie.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 January 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by .. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 171ms

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 273ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

1 records 324ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

checked 2026-10-09 07:30:53

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Same network bookstudie.dk: 195.47.247.18 (AS51468) www.bookstudie.dk: 195.47.247.18 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

399ms

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

🏷️ SOA#

93ms

Field	Value
Serial	2026100901
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 2026-10-09 08:04:17

Field	Value
Registrar	ONE.COM A/S
Registered	2022-01-20
Expires	2027-01-19 (87d)

📋 WHOIS#

⏱️ Lookup Timing#

171ms

273ms

324ms

AAAA

219ms

TXT

536ms

CAA

236ms

HTTPS

177ms

TLSA

120ms

SOA

93ms

MTA-STS

278ms

DNSSEC

399ms

SRV

298ms

Total

1534ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 07:30:53 shown	1534ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 01:25:51	547ms	2 NS 1 A 4 MX	🔓 Insecure
2026-09-11 20:49:26	780ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-25 12:38:05	804ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-20 02:24:34	730ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-16 16:19:10	2909ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-16 16:08:12	2273ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-16 16:02:56	622ms	2 NS 1 A 4 MX	🔓 Insecure
2026-06-16 16:00:18	2598ms	2 NS 1 A 4 MX	🔓 Insecure