thomaswittorff.dk DNS records

🖥️ Nameservers4 records 70ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1045.ui-dns.biz	185.132.33.45 2607:f1c0:fe:53:185:132:33:45	ns1045.ui-dns.biz ns1045.ui-dns.biz	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns1045.ui-dns.com	185.132.34.45 2607:f1c0:fe:53:185:132:34:45	ns1045.ui-dns.com ns1045.ui-dns.com	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns1045.ui-dns.de	185.132.32.45 2607:f1c0:fe:53:185:132:32:45	ns1045.ui-dns.de ns1045.ui-dns.de	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns1045.ui-dns.org	185.132.35.45 2607:f1c0:fe:53:185:132:35:45	ns1045.ui-dns.org ns1045.ui-dns.org	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited

🌍 A Records1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.160.0.155	3600s	217-160-0-155.elastic-ssl.ui-r.com	AS8560	IONOS SE	217.160.0.0/16	🇩🇪 Germany	—

📧 MX Records2 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	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 mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com ic4-privaterelay.appleid.com smtp1.ic4-privaterelay.appleid.com mx02.mail.icloud.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	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	3600s	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 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 mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.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)1 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:8d8:100f:f000::226	3600s	2001-08d8-100f-f000-0000-0000-0000-0226.elastic-ssl.ui-r.com	AS8560	IONOS SE	2001:8d8:0:0:0:0:0:0/32	🇩🇪 Germany	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 257ms

TXT Record
apple-domain=fX5CtLnPxthRWiQg
v=spf1 include:icloud.com ~all

✉️ SPF

Policy	Record (thomaswittorff.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)

🔐 DNSSEC93ms

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	2017060118
Primary NS (MNAME)	ns1045.ui-dns.com
Responsible (RNAME)	hostmaster@1und1.com
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

70ms

A

36ms

MX

59ms

AAAA

41ms

TXT

257ms

CAA

38ms

HTTPS

54ms

TLSA

83ms

SOA

0ms

MTA-STS

86ms

DNSSEC

93ms

SRV

84ms

Total

873ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 14:19:22	873ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-08-25 10:03:52	9672ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-30 04:24:45	1139ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-26 06:13:12	3788ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-22 19:52:00	1055ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 17:09:19	3700ms	4 NS 1 A 2 MX	🔓 Insecure	View