indextools.dk
📜 Historical scan 2026-06-17 18:05:46  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   286ms
NameserverIP addressesPTRASN / ISP
1ns.yahoo.com 2001:4998:c:fe2f:726f:636b:6f:6e0a
74.6.35.130		 1ns.yahoo.com
1ns.yahoo.com		 AS36647 Yahoo Holdings Inc.
AS36647 Yahoo Holdings Inc.
2ns.yahoo.com 2001:4998:58:fe2c:726f:636b:6f:6e0a
98.139.24.68		 —
2ns.yahoo.com		 AS26101 Yahoo Holdings Inc.
AS26101 Yahoo Holdings Inc.
🌍 A Records2 records   179ms
IPTTLPTRASNISP / OrgCIDRCountryCity
13.248.158.7 — a7de0457831fd11f7.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 13.248.0.0/14 🇺🇸 United States —
76.223.84.192 — a7de0457831fd11f7.awsglobalaccelerator.com AS16509 Amazon.com, Inc. 76.223.0.0/17 🇺🇸 United States —
📧 MX Records
📧
No MX records found
🔷 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.indextools.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   181ms
FlagsTagValue
0 iodef mailto:security@yahooinc.com
0 issue ;
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC1334ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA469ms
FieldValue
Serial2024032401
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
286ms
A
179ms
MX
283ms
AAAA
497ms
TXT
1490ms
CAA
181ms
HTTPS
599ms
TLSA
3991ms
SOA
469ms
MTA-STS
637ms
DNSSEC
1334ms
SRV
0ms
Total
12101ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 04:37:33 10485ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-26 17:54:22 1858ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-17 18:05:46 12101ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 17:55:04 2537ms 2 NS 2 A 0 MX 🔓 Insecure View
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