crowdbook.dk DNS records

🖥️ Nameservers4 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1035.awsdns-01.org	205.251.196.11 2600:9000:5304:b00::1	ns-1035.awsdns-01.org ns-1035.awsdns-01.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1578.awsdns-05.co.uk	205.251.198.42 2600:9000:5306:2a00::1	ns-1578.awsdns-05.co.uk ns-1578.awsdns-05.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-350.awsdns-43.com	205.251.193.94 2600:9000:5301:5e00::1	ns-350.awsdns-43.com ns-350.awsdns-43.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-748.awsdns-29.net	205.251.194.236 2600:9000:5302:ec00::1	ns-748.awsdns-29.net ns-748.awsdns-29.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records2 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
34.252.104.197	60s	ec2-34-252-104-197.eu-west-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	34.240.0.0/12	🇮🇪 Ireland	Dublin
54.75.250.54	60s	ec2-54-75-250-54.eu-west-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	54.64.0.0/12	🇮🇪 Ireland	Dublin

📧 MX Records5 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	209.85.233.27 2a00:1450:4010:c0e::1b 2a00:1450:4010:c0e::1b	lr-in-f27.1e100.net lu-in-x1b.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	173.194.43.27 2607:f8b0:400e:c1e::1b	yudlsqd-in-f27.1e100.net yudlsqd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	54.75.250.54
🔶 Autoconfig	34.252.104.197

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 249ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (crowdbook.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~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

🔗 TLSA / DANE

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

🔐 DNSSEC65ms

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

🏷️ SOA32ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-1035.awsdns-01.org
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

55ms

A

40ms

MX

53ms

AAAA

56ms

TXT

249ms

CAA

51ms

HTTPS

55ms

TLSA

160ms

SOA

32ms

MTA-STS

72ms

DNSSEC

65ms

SRV

75ms

Total

1014ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 04:41:36	3752ms	4 NS 2 A 5 MX	🔓 Insecure	View
2026-06-29 14:43:41	1014ms	4 NS 2 A 5 MX	🔓 Insecure	View
2026-06-17 00:08:43	65535ms	4 NS 2 A 5 MX	🔓 Insecure	View
2026-06-16 23:16:48	2453ms	4 NS 2 A 5 MX	🔓 Insecure	View
2026-06-16 23:11:43	717ms	4 NS 2 A 5 MX	🔓 Insecure	View
2026-06-16 23:00:48	919ms	4 NS 2 A 5 MX	🔓 Insecure	View