tmux.dk

📜 Historical scan 2026-06-24 16:49:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tmux.dk is a .dk domain served by 2 nameservers (algin.ns.cloudflare.com, braelyn.ns.cloudflare.com). It was registered on 5 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.70 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mxa.eu.mailgun.org, mxb.eu.mailgun.org. The zone is not DNSSEC-signed, publishes a 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 62ms

Nameserver	IP addresses	PTR	ASN / ISP
algin.ns.cloudflare.com	108.162.193.61 172.64.33.61 173.245.59.61 2606:4700:58::adf5:3b3d 2803:f800:50::6ca2:c13d 2a06:98c1:50::ac40:213d	algin.ns.cloudflare.com algin.ns.cloudflare.com algin.ns.cloudflare.com — algin.ns.cloudflare.com algin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
braelyn.ns.cloudflare.com	108.162.194.97 162.159.38.97 172.64.34.97 2606:4700:50::a29f:2661 2803:f800:50::6ca2:c261 2a06:98c1:50::ac40:2261	braelyn.ns.cloudflare.com braelyn.ns.cloudflare.com braelyn.ns.cloudflare.com braelyn.ns.cloudflare.com braelyn.ns.cloudflare.com braelyn.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 62ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.70	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.211.95	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mxa.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC
10	600s	mxb.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.91.70
🔶 Autoconfig	172.67.211.95

🔷 AAAA Records (IPv6)#

2 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:5b46	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:d35f	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.70,172.67.211.95 ech=AEX+DQBBuQAgACAvm/0aBCPA8lL0W8BJGlY+aQG5mSltXPg28U+pnur1XwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:5b46,2606:4700:3034::ac43:d35f

📝 TXT Records#

1 records 203ms

TXT Record
v=spf1 include:mailgun.org ~all

✉️ SPF#

Policy	Record (tmux.dk)
~all (soft fail)	v=spf1 include:mailgun.org ~all

📨 DMARC#

Policy	Record (_dmarc.tmux.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:f0ee101d@dmarc.mailgun.org,mailto:4c6807c3@inbox.ondmarc.com; ruf=mailto:f0ee101d@dmarc.mailgun.org,mailto:4c6807c3@inbox.ondmarc.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#

latest probe, not this scan · checked 2026-10-11 13:40:26

www	NXDOMAIN
www vs bare domain	Neither resolves tmux.dk: no address www.tmux.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms

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

🏷️ SOA#

68ms

Field	Value
Serial	2404464179
Primary NS (MNAME)	algin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-07-03 15:06:06

Field	Value
Registrar	ONE.COM A/S
Registered	2026-03-05
Expires	2027-03-04 (130d)

📋 WHOIS#

⏱️ Lookup Timing#

62ms

AAAA

62ms

TXT

203ms

CAA

57ms

HTTPS

61ms

TLSA

245ms

SOA

68ms

MTA-STS

39ms

DNSSEC

80ms

SRV

67ms

Total

1396ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-15 23:25:53	1545ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-31 09:47:55	2064ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-29 16:51:58	1112ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-18 18:41:19	2400ms	2 NS 0 A 2 MX	🔓 Insecure
2026-08-06 19:37:31	1466ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-17 05:13:24	1000ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-03 15:02:37	11579ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-28 21:00:05	1101ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 10:10:37	1922ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-24 16:49:20 shown	1396ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-23 04:45:07	1207ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 12:20:39	1045ms	2 NS 2 A 2 MX	🔓 Insecure