backonline.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.53.178.99	43200s	87-53-178-99-dynamic.dk.customer.tdc.net	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	Langå

📧 MX Records2 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	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	mx02.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com smtp1.ic4-privaterelay.appleid.com mx02.mail.icloud.com mx01.mail.icloud.com 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	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	43200s	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	mx01.mail.icloud.com mx3.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx02.mail.icloud.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	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 178ms

TXT Record
apple-domain=kV9oPWkw7RrMFjzY
v=spf1 include:icloud.com ~all

✉️ SPF

Policy	Record (backonline.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)

🔐 DNSSEC83ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026081101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

53ms

MX

32ms

AAAA

39ms

TXT

178ms

CAA

56ms

HTTPS

40ms

TLSA

84ms

SOA

0ms

MTA-STS

64ms

DNSSEC

83ms

SRV

63ms

Total

734ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 06:54:14	734ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-12 05:14:47	1357ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-03 02:49:31	5155ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-28 00:53:22	5420ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-17 22:34:34	1245ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-13 18:37:07	9285ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-25 01:40:42	3240ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 13:59:38	1087ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 16:38:01	623ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-20 02:24:56	1150ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-20 01:40:12	640ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 13:59:36	1119ms	2 NS 1 A 2 MX	🔒 Secure	View