tstr.dk
📜 Historical scan 2026-08-06 13:22:37  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   43ms
NameserverIP addressesPTRASN / 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 Records2 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
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 Records1 records   234ms
TXT Record
v=spf1 include:mailgun.org -all
✉️ SPF
PolicyRecord (tstr.dk)
-all (hard fail) v=spf1 include:mailgun.org -all
📨 DMARC
PolicyRecord (_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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC80ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2411107508
Primary NS (MNAME)emerson.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
43ms
A
45ms
MX
48ms
AAAA
42ms
TXT
234ms
CAA
35ms
HTTPS
32ms
TLSA
129ms
SOA
0ms
MTA-STS
68ms
DNSSEC
80ms
SRV
74ms
Total
1245ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-19 05:29:13 4118ms 2 NS 0 A 2 MX 🔒 Secure View
2026-08-06 13:22:37 1245ms 2 NS 0 A 2 MX 🔒 Secure View
2026-07-22 10:39:14 8797ms 2 NS 0 A 2 MX 🔒 Secure View
2026-07-17 13:00:02 1364ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-28 21:21:06 962ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-20 09:14:17 2817ms 2 NS 0 A 2 MX 🔒 Secure View
2026-06-18 03:17:16 2637ms 2 NS 0 A 2 MX 🔒 Secure View
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