b2b-byggeservice.dk

Records from scan: 2026-10-09 13:45:06 · 1636ms total · last checked 2026-10-17 21:29 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

b2b-byggeservice.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.122 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 54ms

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 76ms

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 Records#

5 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	173.194.221.26 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b	lm-in-f26.1e100.net lt-in-f27.1e100.net lt-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.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::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f27.1e100.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::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 79ms

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 Records#

1 records 267ms

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

🧩 Web & zone#

checked 2026-10-09 13:45:06

www	46.30.215.122 2a02:2350:5:111:80d6:452c:770:1fa (AS51468) (address records, no CNAME)
www vs bare domain	Same network b2b-byggeservice.dk: 46.30.215.122 2a02:2350:5:111:80d6:452c:770:1fa (AS51468) www.b2b-byggeservice.dk: 46.30.215.122 2a02:2350:5:111:80d6:452c:770:1fa (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
google	—	RSA · ~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: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

146ms

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

🏷️ SOA#

413ms

Field	Value
Serial	2026100901
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 2026-10-09 14:22:28

Field	Value
Registrar	ONE.COM A/S
Registered	2024-08-22
Expires	2027-08-21 (307d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

76ms

64ms

AAAA

79ms

TXT

267ms

CAA

74ms

HTTPS

66ms

TLSA

143ms

SOA

413ms

MTA-STS

104ms

DNSSEC

146ms

SRV

85ms

Total

1636ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:45:06 shown	1636ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-04 04:34:50	518ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-30 13:53:03	954ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-24 07:16:15	2609ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-20 16:48:52	734ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-08 18:22:27	965ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-28 03:45:07	841ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-26 23:10:15	825ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-26 20:51:17	635ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-24 21:31:44	9829ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-24 13:59:27	1133ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-10 15:50:31	17350ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-08 14:39:51	1157ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-10 03:27:10	1280ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-27 06:31:56	630ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-26 07:07:28	1569ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-22 13:26:28	695ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 13:57:23	929ms	2 NS 1 A 5 MX	🔒 Secure