buch-c.dk DNS records

🖥️ Nameservers2 records 35ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.241.84	3600s	webcluster1.wordpresspod2-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	buchc-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 2a01:111:f403:ca09::d 52.101.68.36 52.101.68.5 52.101.73.153 52.101.73.4	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)1 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:104:a1:df43:e924:ef23	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 81ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 160ms

TXT Record
apple-domain-verification=RMkbn4bSGKRkXgqz
MS=ms33473053
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (buch-c.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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)

🔐 DNSSEC80ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081001
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

35ms

A

41ms

MX

38ms

AAAA

33ms

TXT

160ms

CAA

38ms

HTTPS

45ms

TLSA

387ms

SOA

0ms

MTA-STS

49ms

DNSSEC

80ms

SRV

81ms

Total

1400ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-13 00:42:38	1400ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 05:46:02	1844ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 00:37:49	1739ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-28 13:45:22	1727ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 07:34:13	1284ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 06:54:23	1304ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 06:04:08	1455ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 05:36:39	8966ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 01:20:37	2693ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 21:39:56	1950ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 21:11:24	1147ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 14:14:14	1991ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 13:52:18	1263ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 12:40:58	1441ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 20:46:45	1330ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 19:52:19	1664ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 17:20:36	12999ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 23:57:29	1413ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 17:22:26	4957ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 15:05:14	1341ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 23:21:20	1461ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 22:05:20	6532ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 20:38:11	10227ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 21:09:29	1516ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 18:13:40	1321ms	2 NS 1 A 1 MX	🔒 Secure	View