academicbook.dk DNS records

🖥️ Nameservers2 records 93ms

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 Records2 records 116ms

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 83ms

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 Records1 records 126ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.54.181,172.67.141.6 ech=AEX+DQBBJQAgACBICK7h0rMIouc/HzScB0c6+6qlcejBgzELObuLPlL7NQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= 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

🔗 TLSA / DANE

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

🔐 DNSSEC157ms

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

🏷️ SOA0ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

93ms

A

116ms

MX

68ms

AAAA

83ms

TXT

336ms

CAA

117ms

HTTPS

126ms

TLSA

89ms

SOA

0ms

MTA-STS

147ms

DNSSEC

157ms

SRV

125ms

Total

1076ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:11:44	1076ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 06:05:39	9926ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-25 13:31:21	1177ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-29 19:20:37	811ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 23:21:17	1178ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 18:16:51	782ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-16 12:47:22	512ms	2 NS 2 A 0 MX	🔓 Insecure	View