alt-for-dyr.dk
Last scanned: 2026-08-27 13:03:25  ·  10530ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   76ms
NameserverIP addressesPTRASN / ISP
ns1.serverbyt.net 35.197.225.59 59.225.197.35.bc.googleusercontent.com AS396982 Google LLC
ns2.serverbyt.net 146.148.28.88 88.28.148.146.bc.googleusercontent.com AS396982 Google LLC
ns3.serverbyt.net 35.198.79.191 191.79.198.35.bc.googleusercontent.com AS396982 Google LLC
ns4.serverbyt.net 104.196.137.209 209.137.196.104.bc.googleusercontent.com AS396982 Google LLC
🌍 A Records1 records   176ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.146.167.203 3600s 185-146-167-203.ptr4.stackcp.net AS48254 20i Limited 185.146.164.0/22 🇺🇸 United States —
📧 MX Records1 records   79ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.stackmail.com 185.151.28.67 mx.stackmail.com AS48254 20i Limited
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.stackmail.com → 45.8.227.100
🔶 Autoconfig185.146.167.203
🔷 AAAA Records (IPv6)1 records   183ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a07:7800:1::203 3600s — AS48254 20i Limited 2a07:7800:0:0:0:0:0:0/46 🇬🇧 United Kingdom —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   459ms
TXT Record
v=spf1 include:spf.stackmail.com a mx -all
✉️ SPF
PolicyRecord (alt-for-dyr.dk)
-all (hard fail) v=spf1 include:spf.stackmail.com a mx -all
📨 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9119ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1776876638
Primary NS (MNAME)ns1.serverbyt.net
Responsible (RNAME)hostmaster@stackdns.com
Refresh1800s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
76ms
A
176ms
MX
79ms
AAAA
183ms
TXT
459ms
CAA
80ms
HTTPS
57ms
TLSA
269ms
SOA
0ms
MTA-STS
148ms
DNSSEC
9119ms
SRV
226ms
Total
10530ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 13:03:25 10530ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 00:03:42 1631ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 16:35:55 1484ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 13:24:13 8483ms 4 NS 1 A 1 MX 🔓 Insecure View
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