mail.yzjfdc.com - robtex.com

mail.yzjfdc.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:41a4🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:a4ed🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.164Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.237🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.164, 172.67.164.237
IPv6 hints2606:4700:3031::6815:41a4, 2606:4700:3031::ac43:a4ed
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com

yzjfdc.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:41a4🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:a4ed🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.164Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.237🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdorthy.ns.cloudflare.com ⭐
NSrayden.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.164, 172.67.164.237
IPv6 hints2606:4700:3031::6815:41a4, 2606:4700:3031::ac43:a4ed
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com
SOAdorthy.ns.cloudflare.comdns@cloudflare.com serial=2408730183

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DNS History

6 records (4 active, 2 former)

A104.21.65.164172.67.164.2372606:4700:3031::6815:41a42606:4700:3031::ac43:a4ed2606:4700:3032::6815:41a42606:4700:3036::ac43:a4ed
●A104.21.65.1642026-02-15 → 2026-07-07 · 2 obs
● 2026-02-15 10:42:12
● 2026-07-07 20:19:00
●A172.67.164.2372026-02-15 → 2026-07-07 · 2 obs
● 2026-02-15 10:42:12
● 2026-07-07 20:19:00
●A2606:4700:3031::6815:41a42026-06-26 → 2026-07-07 · 3 obs
○ 2026-05-21 09:21:38
● 2026-06-26 13:31:46
● 2026-07-07 20:19:00
●A2606:4700:3031::ac43:a4ed2026-06-26 → 2026-07-07 · 3 obs
○ 2026-05-21 09:21:38
● 2026-06-26 13:31:46
● 2026-07-07 20:19:00
○A2606:4700:3032::6815:41a42026-02-15 → 2026-05-21 · 4 obs
● 2026-02-15 10:42:12
● 2026-05-21 09:21:38
○ 2026-06-26 13:31:46
○ 2026-07-07 20:19:00
○A2606:4700:3036::ac43:a4ed2026-02-15 → 2026-05-21 · 4 obs
● 2026-02-15 10:42:12
● 2026-05-21 09:21:38
○ 2026-06-26 13:31:46
○ 2026-07-07 20:19:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net...-
yzjfdc.comdorthy.ns.cloudflare.com, rayden.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.249

NS records: dorthy.ns.cloudflare.com, rayden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yzjfdc.com (unsigned zone)

⏱️ Timing

Total: 270ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.65.164, 172.67.164.237
AAAA22606:4700:3031::ac43:a4ed, 2606:4700:3031::6815:41a4
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dorthy.ns.cloudflare.com, dorthy.ns.cloudflare.com, dorthy.ns.cloudflare.com...)

Analysis

IP Addresses

mail.yzjfdc.com resolves to four IP addresses: 104.21.65.164, 172.67.164.237, 2606:4700:3031::6815:41a4 and 2606:4700:3031::ac43:a4ed.

Additional host names — cql.fr, qld.kr, wy-kuailian.com.cn and two others — share IP numbers with mail.yzjfdc.com.