www.ctsei.com - robtex.com

www.ctsei.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:d096🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:3d5f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.95Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.208.150🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.95, 172.67.208.150
IPv6 hints2606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com

ctsei.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:d096🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:3d5f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.95Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.208.150🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleah.ns.cloudflare.com ⭐
NSmike.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.95, 172.67.208.150
IPv6 hints2606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOAleah.ns.cloudflare.comdns@cloudflare.com serial=2400131097

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DNS History

4 records (4 active, 0 former)

A104.21.61.95172.67.208.1502606:4700:3032::ac43:d0962606:4700:3035::6815:3d5f
●A104.21.61.952026-04-02 → 2026-04-14 · 2 obs
● 2026-04-02 15:36:46
● 2026-04-14 12:10:24
●A172.67.208.1502026-04-02 → 2026-04-14 · 2 obs
● 2026-04-02 15:36:46
● 2026-04-14 12:10:24
●A2606:4700:3032::ac43:d0962026-04-02 → 2026-04-14 · 2 obs
● 2026-04-02 15:36:46
● 2026-04-14 12:10:24
●A2606:4700:3035::6815:3d5f2026-04-02 → 2026-04-14 · 2 obs
● 2026-04-02 15:36:46
● 2026-04-14 12:10:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net...-
ctsei.comleah.ns.cloudflare.com, mike.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.63

NS records: leah.ns.cloudflare.com, mike.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctsei.com (unsigned zone)

⏱️ Timing

Total: 159ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.61.95, 172.67.208.150
AAAA22606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.ctsei.com maps to four IP numbers: 2606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f, 104.21.61.95 and 172.67.208.150.

Other host names, for instance www.thedanamariner.com, mobauctions.com, yuanheqingshang.com, minecore.net and patientscount.org share IP numbers with www.ctsei.com.