academicbook.dk

📜 Historical scan 2026-09-09 12:28:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

academicbook.dk is a .dk domain served by 2 nameservers (lee.ns.cloudflare.com, phoenix.ns.cloudflare.com). It was registered on 8 February 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.54.181 is hosted by Cloudflare, Inc. (AS13335). 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#

2 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
lee.ns.cloudflare.com	108.162.193.129 172.64.33.129 173.245.59.129 2606:4700:58::adf5:3b81 2803:f800:50::6ca2:c181 2a06:98c1:50::ac40:2181	lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
phoenix.ns.cloudflare.com	108.162.194.201 162.159.38.201 172.64.34.201 2606:4700:50::a29f:26c9 2803:f800:50::6ca2:c2c9 2a06:98c1:50::ac40:22c9	phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.54.181	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.6	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:36b5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8d06	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 54ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.54.181,172.67.141.6 ech=AEX+DQBB1wAgACDsOmMhC1nw8fQut5z8IGGuw3PGiJtsH8YBUbWHs/6NXAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:36b5,2606:4700:3033::ac43:8d06

📝 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#

latest probe, not this scan · checked 2026-10-14 01:03:25

www	NXDOMAIN
www vs bare domain	www does not resolve academicbook.dk: 104.21.54.181 172.67.141.6 2606:4700:3030::6815:36b5 2606:4700:3033::ac43:8d06 (AS13335) www.academicbook.dk: no address (all like this)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

68ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411685019
Primary NS (MNAME)	lee.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 23:57:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-02-08
Expires	2027-05-31 (226d)

🔗 Same registrant#

13 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).

Domain	Registrar
akademisk-boghandel.dk	Punktum dk A/S (direct)
atheneum.dk	Punktum dk A/S (direct)
boglade.dk	Punktum dk A/S (direct)
campusbooks.dk	Punktum dk A/S (direct)
erhvervsbogladen.dk	Punktum dk A/S (direct)
kommunikationsleksikon.dk	Punktum dk A/S (direct)
laerebogsprisen.dk	Punktum dk A/S (direct)
mediekommunikationsleksikon.dk	Punktum dk A/S (direct)
medieplanlaegning.dk	Punktum dk A/S (direct)
nfsv.dk	Punktum dk A/S (direct)
scribo.dk	Punktum dk A/S (direct)
slgrafik.dk	Punktum dk A/S (direct)
sllitteraturleksikon.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

65ms

46ms

69ms

AAAA

50ms

TXT

206ms

CAA

41ms

HTTPS

54ms

TLSA

52ms

SOA

0ms

MTA-STS

64ms

DNSSEC

68ms

SRV

82ms

Total

1152ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 13:35:33	382ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 00:02:19	715ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 05:05:51	635ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-09 12:28:14 shown	1152ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 17:11:44	1076ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-09 06:05:39	9926ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-25 13:31:21	1177ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-29 19:20:37	811ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 23:21:17	1178ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 18:16:51	782ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:47:22	512ms	2 NS 2 A 0 MX	🔓 Insecure