btsurvey.dk

📜 Historical scan 2026-10-01 17:34:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

btsurvey.dk is a .dk domain served by 2 nameservers (demi.ns.cloudflare.com, doug.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.73.83 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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#

2 records 129ms

Nameserver	IP addresses	PTR	ASN / ISP
demi.ns.cloudflare.com	108.162.192.95 172.64.32.95 173.245.58.95 2606:4700:50::adf5:3a5f 2803:f800:50::6ca2:c05f 2a06:98c1:50::ac40:205f	demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
doug.ns.cloudflare.com	108.162.193.159 172.64.33.159 173.245.59.159 2606:4700:58::adf5:3b9f 2803:f800:50::6ca2:c19f 2a06:98c1:50::ac40:219f	doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.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 93ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.73.83	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.189.26	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

7 records 128ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	2a00:1450:400c:c0c::1b 2a00:1450:400c:c0c::1b 74.125.133.27	wr-in-f27.1e100.net wr-in-x1b.1e100.net wo-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.213.27 2a00:1450:4013:c1e::1b	yugrqzs-in-f27.1e100.net yugrqzs-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	172.253.148.26 2a00:1450:4025:4401::1a	yuskedq-in-f26.1e100.net yuskedq-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.213.27 2a00:1450:4013:c1e::1a	yugrqzs-in-f27.1e100.net yugrqzs-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.148.27 2a00:1450:4025:4401::1a	yuskedq-in-f27.1e100.net yuskedq-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx4.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx5.googlemail.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	217.116.232.201
🔶 Autoconfig	217.116.232.201

🔷 AAAA Records (IPv6)#

2 records 107ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:4953	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:bd1a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 150ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.73.83,172.67.189.26 ech=AEX+DQBBqQAgACCZMhop6ccgNJNhXgbP/BN6WBMSDGnfefZmY+5pDPH4IwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4953,2606:4700:3034::ac43:bd1a

📝 TXT Records#

📝

No TXT records found

✉️ 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#

latest probe, not this scan · checked 2026-10-08 01:00:18

www	104.21.73.83 172.67.189.26 2606:4700:3033::6815:4953 2606:4700:3034::ac43:bd1a (AS13335) (address records, no CNAME)
www vs bare domain	Same network btsurvey.dk: 104.21.73.83 172.67.189.26 2606:4700:3033::6815:4953 2606:4700:3034::ac43:bd1a (AS13335) www.btsurvey.dk: 104.21.73.83 172.67.189.26 2606:4700:3033::6815:4953 2606:4700:3034::ac43:bd1a (AS13335)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.btsurvey.dk	Oa6GJhcCTIgtrVMXDqQRvMCv9VdjZ8P8BhS9d3niBP4
TXT	_acme-challenge.btsurvey.dk	TOdD70op0nYcrzhMezSFTVYNTOEmDl5kUVPzvjg9iEM

🔗 TLSA / DANE#

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

🔐 DNSSEC#

275ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

196ms

Field	Value
Serial	2416336591
Primary NS (MNAME)	demi.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

129ms

93ms

128ms

AAAA

107ms

TXT

465ms

CAA

148ms

HTTPS

150ms

TLSA

971ms

SOA

196ms

MTA-STS

164ms

DNSSEC

275ms

SRV

231ms

Total

3523ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 17:37:41	954ms	2 NS 2 A 7 MX	🔓 Insecure
2026-10-02 17:35:56	662ms	2 NS 2 A 7 MX	🔓 Insecure
2026-10-01 17:34:51 shown	3523ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-24 16:25:33	808ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-02 18:54:15	1039ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-06 23:13:37	1726ms	2 NS 2 A 7 MX	🔓 Insecure
2026-07-02 00:22:29	1192ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-16 17:37:28	5243ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-16 17:30:47	628ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-16 17:30:38	2573ms	2 NS 2 A 7 MX	🔓 Insecure