buch-c.dk

Records from scan: 2026-10-10 22:18:50 · 2798ms total · last checked 2026-10-16 08:31 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

buch-c.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 December 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.241.84 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by buchc-dk01b.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 56ms

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 Records#

1 records 78ms

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 Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	buchc-dk01b.mail.protection.outlook.com	2a01:111:f403:ca09::20 2a01:111:f403:ca21::e 2a01:111:f403:ca38::8 2a01:111:f403:ca48::8 52.101.185.24 52.101.209.153 52.101.73.145 52.101.91.159	mail-as8pr05cu00400.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-matpr04cu00207.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

1 records 63ms

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 Records#

1 records 298ms

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

📝 TXT Records#

3 records 355ms

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

🧩 Web & zone#

checked 2026-10-10 22:18:50

www	77.111.241.84 2a02:2350:5:104:a1:df43:e924:ef23 (AS51468) (address records, no CNAME)
www vs bare domain	Same network buch-c.dk: 77.111.241.84 2a02:2350:5:104:a1:df43:e924:ef23 (AS51468) www.buch-c.dk: 77.111.241.84 2a02:2350:5:104:a1:df43:e924:ef23 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-buchc-dk01b._domainkey.buchcdk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

287ms

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

🏷️ SOA#

81ms

Field	Value
Serial	2026101001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 22:55:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-12-06
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

56ms

78ms

80ms

AAAA

63ms

TXT

355ms

CAA

121ms

HTTPS

124ms

TLSA

1149ms

SOA

81ms

MTA-STS

163ms

DNSSEC

287ms

SRV

298ms

Total

2798ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 22:18:50 shown	2798ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 04:26:16	985ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 17:28:48	618ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 04:02:50	1174ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 18:00:48	1806ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 00:42:38	1400ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 05:46:02	1844ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-31 00:37:49	1739ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-28 13:45:22	1727ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-27 07:34:13	1284ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-26 06:54:23	1304ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-25 06:04:08	1455ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-24 05:36:39	8966ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-23 01:20:37	2693ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-21 21:39:56	1950ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 21:11:24	1147ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 14:14:14	1991ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 13:52:18	1263ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 12:40:58	1441ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-15 20:46:45	1330ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 19:52:19	1664ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-12 17:20:36	12999ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-10 23:57:29	1413ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-09 17:22:26	4957ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-08 15:05:14	1341ms	2 NS 1 A 1 MX	🔒 Secure