mail.j18k.com - robtex.com

mail.j18k.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:3dee🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:d8fb🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.238Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.251🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.238, 172.67.216.251
IPv6 hints2606:4700:3034::6815:3dee, 2606:4700:3034::ac43:d8fb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com

j18k.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:3dee🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:d8fb🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.238Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.251🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSholly.ns.cloudflare.com ⭐
NSmatt.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.238, 172.67.216.251
IPv6 hints2606:4700:3034::6815:3dee, 2606:4700:3034::ac43:d8fb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com
SOAholly.ns.cloudflare.comdns@cloudflare.com serial=2399398087

Previously MX for

j18k.com

Same first word

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DNS History

9 records (4 active, 5 former)

200920112013201520172019202120232025A104.21.61.238172.67.216.2512606:4700:3034::6815:3dee2606:4700:3034::ac43:d8fb188.114.96.4188.114.97.42a06:98c1:3120::2a06:98c1:3121::69.94.124.30
●A104.21.61.2382026-03-06 → 2026-04-29 · 3 obs
○ 2008-03-09 19:21:44
● 2026-03-06 18:41:22
● 2026-04-29 00:55:48
●A172.67.216.2512026-03-06 → 2026-04-29 · 3 obs
○ 2008-03-09 19:21:44
● 2026-03-06 18:41:22
● 2026-04-29 00:55:48
○A188.114.96.42026-03-06 → 2026-04-29 · 2 obs
○ 2026-03-06 18:41:22
○ 2026-04-29 00:55:48
○A188.114.97.42026-03-06 → 2026-04-29 · 2 obs
○ 2026-03-06 18:41:22
○ 2026-04-29 00:55:48
●A2606:4700:3034::6815:3dee2026-03-06 → 2026-04-29 · 3 obs
○ 2008-03-09 19:21:44
● 2026-03-06 18:41:22
● 2026-04-29 00:55:48
●A2606:4700:3034::ac43:d8fb2026-03-06 → 2026-04-29 · 3 obs
○ 2008-03-09 19:21:44
● 2026-03-06 18:41:22
● 2026-04-29 00:55:48
○A2a06:98c1:3120::2026-03-06 → 2026-04-29 · 2 obs
○ 2026-03-06 18:41:22
○ 2026-04-29 00:55:48
○A2a06:98c1:3121::2026-03-06 → 2026-04-29 · 2 obs
○ 2026-03-06 18:41:22
○ 2026-04-29 00:55:48
○A69.94.124.302008-03-09 → 2008-03-09 · 3 obs
● 2008-03-09 19:21:44
○ 2026-03-06 18:41:22
○ 2026-04-29 00:55:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...-
j18k.commatt.ns.cloudflare.com, holly.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.131

NS records: matt.ns.cloudflare.com, holly.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for j18k.com (unsigned zone)

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.61.238, 172.67.216.251
AAAA22606:4700:3034::ac43:d8fb, 2606:4700:3034::6815:3dee
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.j18k.com maps to four IP numbers: 2606:4700:3034::6815:3dee, 2606:4700:3034::ac43:d8fb, 104.21.61.238 and 172.67.216.251.

Other host names, for instance apstudynotes.org, minijuegostop.com.mx, dcbuildingmaterial.com, hoonvision.com and orbitsynergyengine.digital share IP numbers with mail.j18k.com.