bt.dk

📜 Historical scan 2026-07-01 23:52:50  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bt.dk is a .dk domain served by 4 nameservers (ns-1028.awsdns-00.org, ns-1897.awsdns-45.co.uk, ns-432.awsdns-54.com and 1 more). It was registered on 10 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.174.18.116 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records   31ms
NameserverIP addressesPTRASN / ISP
ns-1028.awsdns-00.org 205.251.196.4
2600:9000:5304:400::1		 ns-1028.awsdns-00.org
ns-1028.awsdns-00.org		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-1897.awsdns-45.co.uk 205.251.199.105
2600:9000:5307:6900::1		 ns-1897.awsdns-45.co.uk
ns-1897.awsdns-45.co.uk		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-432.awsdns-54.com 205.251.193.176
2600:9000:5301:b000::1		 ns-432.awsdns-54.com
ns-432.awsdns-54.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-990.awsdns-59.net 205.251.195.222
2600:9000:5303:de00::1		 ns-990.awsdns-59.net
ns-990.awsdns-59.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.

🌍 A Records#

4 records   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
3.174.18.116 60s server-3-174-18-116.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.174.18.24 60s server-3-174-18-24.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.174.18.42 60s server-3-174-18-42.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.174.18.91 60s server-3-174-18-91.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —

📧 MX Records#

5 records   57ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s aspmx.l.google.com 2a00:1450:4010:c1e::1b
64.233.164.26		 lb-in-f27.1e100.net
lf-in-f26.1e100.net		 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 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 alt3.aspmx.l.google.com 108.177.125.27
2404:6800:4008:c01::1b		 tp-in-f27.1e100.net
tp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 3600s alt4.aspmx.l.google.com 192.178.230.26
2404:6800:400b:c01b::1a		 yunrtab-in-f26.1e100.net
yunrtab-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

15 records   286ms
TXT Record
DBO
docusign=5002b1be-d38d-49e8-a3c2-190fae7be914
docusign=b9b660d9-2c70-4777-a009-567f973e9a7e
facebook-domain-verification=np3c30lskd6ibfnvwf2hjue73rzmgx
google-site-verification=6CW3_5qeaI5nW8LtLwAHMGR2bT_PxP076OuC0yWEvzw
google-site-verification=CSEMR5Bv4mkCmKuj3vPh8QfKsIq2gJAnZQyXraMr1yE
google-site-verification=DAQlWGGp4_r7f5XuAUepRlFITb-HAONt6icMCd-2UWw
google-site-verification=KOdo1HMlUXc5c93BkrCDZ1GHv9VRGDfKyXF1Zcl5UXI
google-site-verification=MFqaEEY-lwt2YqoUAzYHD3E7EovZhzWLPGJAf_ew-7Y
google-site-verification=nhtnq1e1Yfe-3YFgUtPjjP9RfrcJ7lNqYC49zpRFbVg
google-site-verification=oNbQkDAxc331-pW8FSA_2ne_jyB2bjwku1-kqiSVfik
google-site-verification=P5n1EArQ0PqORsBv9M3inR8T_LIMSNNEinGN3w1xdpo
google-site-verification=shLaIdX60al1iuN-5pjzXqAFnbEsfFyA4sCWBbjMEXc
google-site-verification=yYEJXlSACju11E3jv8h8re68BviCUin8BcfrzC_Ln78
v=spf1 include:_u.bt.dk._spf.dmarcly.com include:mail.zendesk.com -all

✉️ SPF#

PolicyRecord (bt.dk)
-all (hard fail) v=spf1 include:_u.bt.dk._spf.dmarcly.com include:mail.zendesk.com -all

📨 DMARC#

PolicyRecord (_dmarc.bt.dk)
p=reject v=DMARC1; p=reject; rua=mailto:5e440eaecbab4@ag.dmarcly.com; ruf=mailto:5e440eaecbab4@fo.dmarcly.com; sp=reject; adkim=s; pct=100; fo=1;

📬 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#

latest probe, not this scan · checked 2026-10-10 13:16:48
www CNAMEweb.avis.api.no.cdn.cloudflare.net (all on cloudflare.net)
www vs bare domainDifferent networks (all like this)
WildcardNo

✍️ DKIM keys#

3 found
SelectorCNAMEKey
google — RSA · ~2048 bit
s1 s1.domainkey.u276253.wl004.sendgrid.net RSA · ~2048 bit
s2 s2.domainkey.u276253.wl004.sendgrid.net RSA · ~1024 bit below 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#

132ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

58ms
FieldValue
Serial1
Primary NS (MNAME)ns-1028.awsdns-00.org
Responsible (RNAME)awsdns-hostmaster@amazon.com
Refresh7200s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-10 06:30:07
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1997-11-10
Expires2026-12-31 (75d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
31ms
A
48ms
MX
57ms
AAAA
58ms
TXT
286ms
CAA
52ms
HTTPS
56ms
TLSA
82ms
SOA
58ms
MTA-STS
54ms
DNSSEC
132ms
SRV
76ms
Total
4639ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-27 00:54:34 3503ms 4 NS 4 A 5 MX 🔓 Insecure
2026-07-01 23:52:50 shown 4639ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 17:44:54 3062ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 17:34:55 7523ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 17:30:39 831ms 4 NS 4 A 5 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone