3-byg.dk

Records from scan: 2026-09-26 06:31:52 · 770ms total · last checked 2026-10-16 22:25 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3-byg.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 10 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.142.117 is hosted by Cloudflare, Inc. (AS13335). 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 has no IPv6 address. 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.142.117	300s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.2.113	300s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records#

5 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	209.85.233.27 2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b	lr-in-f27.1e100.net li-in-f27.1e100.net li-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.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	aspmx2.googlemail.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
10	3600s	aspmx3.googlemail.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 120ms

TXT Record
google-site-verification=wSlL38JIiyl_5RSLsBg5WP8GIH1smhLI9c6AUZxw_vo

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 15:10:45

www CNAME	3-byg.dk (all on 3-byg.dk) → 162.159.142.117 172.66.2.113 (AS13335)
www vs bare domain	Same network 3-byg.dk: 162.159.142.117 172.66.2.113 (AS13335) www.3-byg.dk: 162.159.142.117 172.66.2.113 (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

118ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092501
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-14 03:20:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-01-10
Expires	2027-01-31 (106d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

34ms

36ms

48ms

AAAA

33ms

TXT

120ms

CAA

40ms

HTTPS

56ms

TLSA

112ms

SOA

0ms

MTA-STS

54ms

DNSSEC

118ms

SRV

56ms

Total

770ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 06:31:52 shown	770ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-25 06:24:11	875ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-24 06:14:37	880ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-01 23:51:40	1346ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 12:57:29	1623ms	2 NS 1 A 5 MX	🔒 Secure