eisenstein.dk
Last scanned: 2026-08-26 05:10:04  ·  13751ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers5 records   68ms
NameserverIP addressesPTRASN / ISP
ns1.yahoo.com 2001:4998:1b0::7961:686f:6f21
68.180.131.16		 ns1.yahoo.com
ns1.yahoo.com		 AS10880 Yahoo Holdings Inc.
AS10880 Yahoo Holdings Inc.
ns2.yahoo.com 2001:4998:1c0::7961:686f:6f21
68.142.255.16		 ns2.yahoo.com
ns2.yahoo.com		 AS7280 Yahoo Holdings Inc.
AS7280 Yahoo Holdings Inc.
ns3.yahoo.com 2406:8600:f03f:1f8::1003
27.123.42.42		 ns3.yahoo.com
ns3.yahoo.com		 AS23879 INY Edge site
AS23879 INY Edge site
ns4.yahoo.com 98.138.11.157 ns4.yahoo.com AS36646 Yahoo Holdings Inc.
ns5.yahoo.com 202.165.97.53
2406:2000:1d0::7961:686f:6f21		 ns5.yahoo.com
—		 AS10880 Yahoo Holdings Inc.
AS10880 Yahoo Holdings Inc.
🌍 A Records2 records   174ms
IPTTLPTRASNISP / OrgCIDRCountryCity
13.248.158.7 3600s a7de0457831fd11f7.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 13.248.0.0/14 🇺🇸 United States —
76.223.84.192 3600s a7de0457831fd11f7.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 76.223.0.0/17 🇺🇸 United States —
📧 MX Records1 records   64ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   6080ms
TXT Record
'Digicert - itsecurity@teamaol.com'
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.eisenstein.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   323ms
FlagsTagValue
0 iodef mailto:security@yahooinc.com
0 issue ;
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC200ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2024031302
Primary NS (MNAME)hidden-master.yahoo.com
Responsible (RNAME)hostmaster@yahoo-inc.com
Refresh28800s
Retry900s
Expire604800s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
68ms
A
174ms
MX
64ms
AAAA
303ms
TXT
6080ms
CAA
323ms
HTTPS
58ms
TLSA
412ms
SOA
0ms
MTA-STS
117ms
DNSSEC
200ms
SRV
1299ms
Total
13751ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 05:10:04 13751ms 5 NS 2 A 1 MX 🔓 Insecure View
2026-06-27 05:25:32 2388ms 5 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 06:28:31 566ms 5 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 06:20:04 597ms 5 NS 2 A 0 MX 🔓 Insecure View
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