mail.ctstubes.com - robtex.com

mail.ctstubes.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:ad3b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:1ea2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.162Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.59🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.30.162, 172.67.173.59
IPv62606:4700:3030::ac43:ad3b, 2606:4700:3035::6815:1ea2

ctstubes.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:ad3b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:1ea2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.162Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.59🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlars.ns.cloudflare.com ⭐
NSpriscilla.ns.cloudflare.com
MXmx2.zoho.com ⭐
MXmx3.zoho.com(20)
MXmx.zoho.com(50)
TXTgoogle-site-verification=UKm6i8PmnIFyPTSUgrd_GBB7cRBsgQt6uQwocUVnJr8
TXTv=spf1 ip4:104.207.153.105 include:one.zoho.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.30.162, 172.67.173.59
IPv62606:4700:3030::ac43:ad3b, 2606:4700:3035::6815:1ea2
SOAlars.ns.cloudflare.comdns@cloudflare.com serial=2398812797

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DNS History

5 records (4 active, 1 former)

202120222023202420252026A104.21.30.162172.67.173.592606:4700:3030::ac43:ad3b2606:4700:3035::6815:1ea2CNAMEctstubes.com
●A104.21.30.1622026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:47:24
● 2026-03-25 15:08:18
●A172.67.173.592026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:47:24
● 2026-03-25 15:08:18
●A2606:4700:3030::ac43:ad3b2026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:47:24
● 2026-03-25 15:08:18
●A2606:4700:3035::6815:1ea22026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:47:24
● 2026-03-25 15:08:18
○CNAMEctstubes.com2020-04-10 → 2020-04-10 · 3 obs
● 2020-04-10 15:41:46
○ 2026-03-11 11:47:24
○ 2026-03-25 15:08:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...-
ctstubes.comlars.ns.cloudflare.com, priscilla.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.189

NS records: lars.ns.cloudflare.com, priscilla.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.173.59, 104.21.30.162
AAAA22606:4700:3030::ac43:ad3b, 2606:4700:3035::6815:1ea2
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.ctstubes.com maps to four IP numbers: 2606:4700:3030::ac43:ad3b, 2606:4700:3035::6815:1ea2, 104.21.30.162 and 172.67.173.59.

Other host names, for instance workgroup.co.za, squarestate.net, www.ona-box.com, mail.mon-practices-inc.xyz and pflege-karriere.ch share IP numbers with mail.ctstubes.com.