booksupport.dk

📜 Historical scan 2026-06-16 16:01:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

booksupport.dk is a .dk domain served by 4 nameservers (ns1.dotserv.com, ns1.dotserv.net, ns2.dotserv.com and 1 more). It was registered on 1 November 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.217.4 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by www.booksupport.dk. The zone is not DNSSEC-signed, publishes a 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#

4 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dotserv.com	—	—	—
ns1.dotserv.net	—	—	—
ns2.dotserv.com	—	—	—
ns2.dotserv.net	—	—	—

🌍 A Records#

1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.4	—	parking.enavn.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	www.booksupport.dk	178.20.217.4	parking.enavn.dk	AS21060 Atea A/S

🔷 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#

Policy	Record (_dmarc.booksupport.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

2 records 31ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 03:37:04

www	178.20.217.4 (AS21060) (address records, no CNAME)
www vs bare domain	Same network booksupport.dk: 178.20.217.4 (AS21060) www.booksupport.dk: 178.20.217.4 (AS21060)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

169ms

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

🏷️ SOA#

35ms

Field	Value
Serial	1281015720
Primary NS (MNAME)	ns1.dotserv.com
Responsible (RNAME)	hostmaster@dotserv.com
Refresh	14400s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-10-10 19:24:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-11-01
Expires	2026-11-30 (40d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

35ms

AAAA

37ms

TXT

272ms

CAA

31ms

HTTPS

38ms

TLSA

87ms

SOA

35ms

MTA-STS

128ms

DNSSEC

169ms

SRV

0ms

Total

671ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 00:51:08	2403ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-02 08:28:30	728ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-01 09:19:48	9590ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-25 10:58:41	749ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-22 11:54:31	868ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 16:20:19	4031ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 16:18:59	1510ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 16:06:46	408ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 16:01:09 shown	671ms	4 NS 1 A 1 MX	🔓 Insecure