byggefirmaet-slg.dk

Records from scan: 2026-10-12 09:52:51 · 1264ms total · last checked 2026-10-19 16:09 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byggefirmaet-slg.dk is a .dk domain served by 2 nameservers (luke.ns.cloudflare.com, rosalyn.ns.cloudflare.com). It was registered on 29 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.53.223 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by byggefirmaetslg-dk03b.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
luke.ns.cloudflare.com	108.162.193.200 172.64.33.200 173.245.59.200 2606:4700:58::adf5:3bc8 2803:f800:50::6ca2:c1c8 2a06:98c1:50::ac40:21c8	luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com luke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rosalyn.ns.cloudflare.com	108.162.194.59 162.159.38.59 172.64.34.59 2606:4700:50::a29f:263b 2803:f800:50::6ca2:c23b 2a06:98c1:50::ac40:223b	rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.53.223	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.219.90	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	byggefirmaetslg-dk03b.mail.protection.outlook.com	2a01:111:f403:ca21::8 2a01:111:f403:ca21::a 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::12 52.101.103.140 52.101.103.39 52.101.181.156 52.101.68.8	mail-matpr04cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.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)#

2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:35df	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:db5a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.53.223,172.67.219.90 ech=AEX+DQBBcgAgACAvAfy1NO6dW8ak+ZCuDV4GmyVwVuueXTKVWCR9ByEaAQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:35df,2606:4700:3036::ac43:db5a

📝 TXT Records#

1 records 184ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (byggefirmaet-slg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.byggefirmaet-slg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:b8543a8ad77646d29c4d626ec0adefb3@dmarc-reports.cloudflare.net

📬 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 2026-10-12 09:52:51

www	104.21.53.223 172.67.219.90 2606:4700:3034::6815:35df 2606:4700:3036::ac43:db5a (AS13335) (address records, no CNAME)
www vs bare domain	Same network byggefirmaet-slg.dk: 104.21.53.223 172.67.219.90 2606:4700:3034::6815:35df 2606:4700:3036::ac43:db5a (AS13335) www.byggefirmaet-slg.dk: 104.21.53.223 172.67.219.90 2606:4700:3034::6815:35df 2606:4700:3036::ac43:db5a (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-byggefirmaetslg-dk03b._domainkey.stiggade.onmicrosoft.com	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

65ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2417225826
Primary NS (MNAME)	luke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 05:08:24

Field	Value
Registrar	Greait
Registered	2020-04-29
Expires	2027-04-30 (191d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

33ms

29ms

AAAA

36ms

TXT

184ms

CAA

29ms

HTTPS

42ms

TLSA

798ms

SOA

44ms

MTA-STS

60ms

DNSSEC

65ms

SRV

80ms

Total

1264ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 09:52:51 shown	1264ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-09 05:02:45	1804ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-08 04:59:08	3612ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 02:45:09	1319ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-27 18:45:34	3364ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-27 05:25:00	1009ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 05:13:00	1083ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 03:04:40	1789ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-16 04:10:08	3343ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-24 19:38:12	4347ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-11 00:19:50	9008ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-04 21:35:09	2078ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-29 08:27:00	11047ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-08 21:41:12	1881ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-01 17:23:15	1537ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-19 05:55:53	1461ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 18:10:38	669ms	2 NS 2 A 1 MX	🔒 Secure