tstr.dk

📜 Historical scan 2026-09-14 21:12:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tstr.dk is a .dk domain served by 2 nameservers (emerson.ns.cloudflare.com, suzanne.ns.cloudflare.com). It was registered on 16 April 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mxa.eu.mailgun.org, mxb.eu.mailgun.org. The zone is DNSSEC-signed and validates, 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#

2 records 135ms

Nameserver	IP addresses	PTR	ASN / ISP
emerson.ns.cloudflare.com	108.162.195.96 162.159.44.96 172.64.35.96 2606:4700:58::a29f:2c60 2803:f800:50::6ca2:c360 2a06:98c1:50::ac40:2360	emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
suzanne.ns.cloudflare.com	108.162.194.87 162.159.38.87 172.64.34.87 2606:4700:50::a29f:2657 2803:f800:50::6ca2:c257 2a06:98c1:50::ac40:2257	suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mxa.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC
10	300s	mxb.eu.mailgun.org	34.111.130.244	244.130.111.34.bc.googleusercontent.com	AS396982 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 270ms

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

✉️ SPF#

Policy	Record (tstr.dk)
-all (hard fail)	v=spf1 include:mailgun.org -all

📨 DMARC#

Policy	Record (_dmarc.tstr.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:ca14c809afbc4a9889fcb3591fc171e3@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#

latest probe, not this scan · checked 2026-10-09 12:04:10

www	Exists, no address
www vs bare domain	Neither resolves tstr.dk: no address www.tstr.dk: no address
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.tstr.dk	-yhEzxGYrkk0jGCBs2dYdfVXEJGP72HgwALqD5qvRrw
TXT	_acme-challenge.tstr.dk	67BYicKCn_tWq5eklTJEz1BXYqoVZ8Nip6y8LzrDACo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

171ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2414813066
Primary NS (MNAME)	emerson.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-03 03:42:56

Field	Value
Registrar	NETIM
Registered	2025-04-16
Expires	2027-04-15 (176d)

📋 WHOIS#

⏱️ Lookup Timing#

135ms

118ms

80ms

AAAA

127ms

TXT

270ms

CAA

114ms

HTTPS

113ms

TLSA

79ms

SOA

0ms

MTA-STS

153ms

DNSSEC

171ms

SRV

195ms

Total

1641ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:04:10	547ms	2 NS 0 A 2 MX	🔒 Secure
2026-10-03 03:37:30	805ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-30 03:11:56	993ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-20 16:13:58	1184ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-14 21:12:49 shown	1641ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-07 19:10:02	1804ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-19 05:29:13	4118ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-06 13:22:37	1245ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-22 10:39:14	8797ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-17 13:00:02	1364ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-28 21:21:06	962ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-20 09:14:17	2817ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-18 03:17:16	2637ms	2 NS 0 A 2 MX	🔒 Secure