b2b-byggeservice.dk DNS records

🖥️ Nameservers2 records 43ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.122	3600s	webcluster2.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records5 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.150.26 2a00:1450:4010:c20::1b	la-in-f26.1e100.net yulppbn-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)1 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:80d6:452c:770:1fa	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

📝 TXT Records1 records 178ms

TXT Record
v=spf1 a mx include:_spf.google.com include:_custspf.one.com ~all

✉️ SPF

Policy	Record (b2b-byggeservice.dk)
~all (soft fail)	v=spf1 a mx include:_spf.google.com include:_custspf.one.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)

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082601
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

43ms

A

46ms

MX

49ms

AAAA

45ms

TXT

178ms

CAA

67ms

HTTPS

39ms

TLSA

79ms

SOA

0ms

MTA-STS

66ms

DNSSEC

90ms

SRV

65ms

Total

841ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 03:45:07	841ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-26 23:10:15	825ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-26 20:51:17	635ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-24 21:31:44	9829ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-24 13:59:27	1133ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-10 15:50:31	17350ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-08 14:39:51	1157ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-10 03:27:10	1280ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-27 06:31:56	630ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-26 07:07:28	1569ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-22 13:26:28	695ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-16 13:57:23	929ms	2 NS 1 A 5 MX	🔒 Secure	View