mail.firstceo.net - robtex.com

mail.firstceo.net

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:b8f7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:1329🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.19.41Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.184.247🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.19.41, 172.67.184.247
IPv6 hints2606:4700:3032::ac43:b8f7, 2606:4700:3035::6815:1329
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=106, name=cloudflare-ech.com

firstceo.net

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:b8f7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:1329🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.19.41Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.184.247🇺🇸 Cloudflare172.67.176.0/20 , 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 hints104.21.19.41, 172.67.184.247
IPv6 hints2606:4700:3032::ac43:b8f7, 2606:4700:3035::6815:1329
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=106, name=cloudflare-ech.com
SOAdorthy.ns.cloudflare.comdns@cloudflare.com serial=2410136758

Previously MX for

firstceo.net

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026A104.21.19.41172.67.184.2472606:4700:3032::ac43:b8f72606:4700:3035::6815:1329124.172.244.201CNAMEexp.gs-cdn.com
●A104.21.19.412026-07-17 → 2026-08-11 · 3 obs
○ 2026-03-26 07:26:22
● 2026-07-17 12:28:02
● 2026-08-11 22:26:28
○A124.172.244.2012015-05-22 → 2016-04-13 · 4 obs
● 2015-05-22 04:06:48
● 2016-04-13 19:55:00
○ 2026-03-26 07:26:22
○ 2026-08-11 22:26:28
●A172.67.184.2472026-07-17 → 2026-08-11 · 3 obs
○ 2026-03-26 07:26:22
● 2026-07-17 12:28:02
● 2026-08-11 22:26:28
●A2606:4700:3032::ac43:b8f72026-07-17 → 2026-08-11 · 3 obs
○ 2026-03-26 07:26:22
● 2026-07-17 12:28:02
● 2026-08-11 22:26:28
●A2606:4700:3035::6815:13292026-07-17 → 2026-08-11 · 3 obs
○ 2026-03-26 07:26:22
● 2026-07-17 12:28:02
● 2026-08-11 22:26:28
○CNAMEexp.gs-cdn.com2026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 07:26:22
○ 2026-05-15 03:58:38
○ 2026-08-11 22:26:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
firstceo.netdorthy.ns.cloudflare.com, rayden.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.163

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstceo.net (unsigned zone)

⏱️ Timing

Total: 363ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.184.247, 104.21.19.41
AAAA22606:4700:3032::ac43:b8f7, 2606:4700:3035::6815:1329
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.firstceo.net resolves to four IP addresses: 104.21.19.41, 172.67.184.247, 2606:4700:3032::ac43:b8f7 and 2606:4700:3035::6815:1329.

Additional host names — set-emup.com, fitechairdrop.xyz, grouplmt.ca and two others — share IP numbers with mail.firstceo.net.