gtbiler.dk

Records from scan: 2026-10-03 17:46:23 · 1157ms total · last checked 2026-10-17 13:24 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gtbiler.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.221.253.104 is hosted by Unit IT Services ApS (AS42876) in Denmark. Mail is handled by gtbiler-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 22ms

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#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.221.253.104	300s	—	AS42876	Unit IT Services ApS	77.221.224.0/19	🇩🇰 Denmark	Taastrup

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	gtbiler-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca21::10 2a01:111:f403:ca21::e 2a01:111:f403:ca3c::6 52.101.103.162 52.101.185.114 52.101.68.21 52.101.91.156	mail-dbapr03cu00100.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-maspr04cu00104.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 → 52.98.154.136
🔶 Autoconfig	77.221.253.104

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 53ms

Service	Priority	Weight	Port	Target
_sip._tcp	100	1	443	sipdir.online.lync.com.gtbiler.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com.gtbiler.dk

📝 TXT Records#

2 records 250ms

TXT Record
MS=ms78253008
v=spf1 mx ip4:195.249.218.0/24 ip4:93.90.117.1/24 include:web.shared.mysmtp.com include:spf.protection.outlook.com include:_spf.salesforce.com ~all

✉️ SPF#

Policy	Record (gtbiler.dk)
~all (soft fail)	v=spf1 mx ip4:195.249.218.0/24 ip4:93.90.117.1/24 include:web.shared.mysmtp.com include:spf.protection.outlook.com include:_spf.salesforce.com ~all

📨 DMARC#

Policy	Record (_dmarc.gtbiler.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:tepx02da@ag.eu.dmarcadvisor.com; ruf=mailto:tepx02da@fr.eu.dmarcadvisor.com

📬 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 01:58:51

www	77.221.253.104 (AS42876) (address records, no CNAME)
www vs bare domain	Same network gtbiler.dk: 77.221.253.104 (AS42876) www.gtbiler.dk: 77.221.253.104 (AS42876)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: ~all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

51ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2025101401
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

22ms

28ms

30ms

AAAA

47ms

TXT

250ms

CAA

39ms

HTTPS

13ms

TLSA

698ms

SOA

29ms

MTA-STS

53ms

DNSSEC

51ms

SRV

53ms

Total

1157ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 17:46:23 shown	1157ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 05:47:10	832ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 18:15:54	1238ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:43:53	943ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:39:01	1131ms	2 NS 1 A 1 MX	🔒 Secure