nicolasbuch.dk DNS records

🖥️ Nameservers4 records 68ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1011.awsdns-62.net	205.251.195.243 2600:9000:5303:f300::1	ns-1011.awsdns-62.net ns-1011.awsdns-62.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1213.awsdns-23.org	205.251.196.189 2600:9000:5304:bd00::1	ns-1213.awsdns-23.org ns-1213.awsdns-23.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-2007.awsdns-58.co.uk	205.251.199.215 2600:9000:5307:d700::1	ns-2007.awsdns-58.co.uk ns-2007.awsdns-58.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-336.awsdns-42.com	205.251.193.80 2600:9000:5301:5000::1	ns-336.awsdns-42.com ns-336.awsdns-42.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records2 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx01.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx3.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com ic4-privaterelay.appleid.com smtp1.ic4-privaterelay.appleid.com mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.
10	300s	mx02.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx02.mail.icloud.com mx01.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com smtp1.ic4-privaterelay.appleid.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 221ms

TXT Record
apple-domain=RqOXEwr4N20KHpJh
v=spf1 include:icloud.com ~all

✉️ SPF

Policy	Record (nicolasbuch.dk)
~all (soft fail)	v=spf1 include:icloud.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)

🔐 DNSSEC126ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-336.awsdns-42.com
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

68ms

A

61ms

MX

61ms

AAAA

62ms

TXT

221ms

CAA

95ms

HTTPS

67ms

TLSA

80ms

SOA

0ms

MTA-STS

98ms

DNSSEC

126ms

SRV

1191ms

Total

5571ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 23:19:38	5571ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-08-26 00:08:13	3750ms	4 NS 0 A 2 MX	🔓 Insecure	View
2026-06-18 07:40:15	3358ms	4 NS 0 A 2 MX	🔓 Insecure	View