yahoomail.dk
Last scanned: 2026-08-27 10:07:21  ·  3278ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   251ms
🌍 A Records2 records   2040ms
📧 MX Records1 records   215ms
PriorityTTLMail ServerIP addressesPTRASN
0 7200s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermedia-router1.prod.media.yahoo.com → 87.248.100.208
🔶 Autoconfigmedia-router1.prod.media.yahoo.com → 87.248.100.208
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.yahoomail.dk)
p=reject v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-yahoo-rua@yahoo-inc.com;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records2 records   200ms
FlagsTagValue
0 iodef mailto:security@yahooinc.com
0 issue ;
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.yahoomail.dk media-router1.prod.media.yahoo.com
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC2106ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2024031301
Primary NS (MNAME)hidden-master.yahoo.com
Responsible (RNAME)hostmaster@yahoo-inc.com
Refresh28800s
Retry3600s
Expire1814400s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
251ms
A
2040ms
MX
215ms
AAAA
77ms
TXT
1137ms
CAA
200ms
HTTPS
189ms
TLSA
229ms
SOA
0ms
MTA-STS
446ms
DNSSEC
2106ms
SRV
480ms
Total
3278ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 10:07:21 3278ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-27 00:59:38 1714ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-18 05:24:28 1856ms 2 NS 2 A 0 MX 🔓 Insecure View
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