mail.usstl.com - robtex.com

mail.usstl.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:2a8b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:ce1e🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.42.139Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.206.30🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.42.139, 172.67.206.30
IPv6 hints2606:4700:3031::6815:2a8b, 2606:4700:3034::ac43:ce1e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=231, name=cloudflare-ech.com

usstl.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:2a8b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:ce1e🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.42.139Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.206.30🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSveda.ns.cloudflare.com ⭐
NSwalt.ns.cloudflare.com
MXusstl-com.mail.protection.outlook.com ⭐
TXT2bi7m3icb0r8u7sgdo66pff9kq
TXT5f5girqp5iipnq0v6jgclf8f0v
TXTMS=ms41322139
TXTMS=ms63970675
TXTdropbox-domain-verification=0mysv4nu50vo
TXTl4lbpa9akqdrric3c8r9mthpj5
TXTp0bmov9f5g1rkh2rk7dqu9ad9c
TXTv=spf1 a a:usstl.com ip4:24.182.144.170 ip4:128.92.26.106 include:server121.a...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.42.139, 172.67.206.30
IPv6 hints2606:4700:3031::6815:2a8b, 2606:4700:3034::ac43:ce1e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=231, name=cloudflare-ech.com
SOAveda.ns.cloudflare.comdns@cloudflare.com serial=2403844694

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.42.139172.67.206.302606:4700:3031::6815:2a8b2606:4700:3034::ac43:ce1e174.141.33.66
●A104.21.42.1392026-02-16 → 2026-05-11 · 3 obs
○ 2016-09-17 12:07:34
● 2026-02-16 05:01:12
● 2026-05-11 18:58:54
●A172.67.206.302026-02-16 → 2026-05-11 · 3 obs
○ 2016-09-17 12:07:34
● 2026-02-16 05:01:12
● 2026-05-11 18:58:54
○A174.141.33.662015-06-10 → 2016-09-17 · 4 obs
● 2015-06-10 21:07:20
● 2016-09-17 12:07:34
○ 2026-02-16 05:01:12
○ 2026-05-11 18:58:54
●A2606:4700:3031::6815:2a8b2026-02-16 → 2026-05-11 · 3 obs
○ 2016-09-17 12:07:34
● 2026-02-16 05:01:12
● 2026-05-11 18:58:54
●A2606:4700:3034::ac43:ce1e2026-02-16 → 2026-05-11 · 3 obs
○ 2016-09-17 12:07:34
● 2026-02-16 05:01:12
● 2026-05-11 18:58:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
usstl.comwalt.ns.cloudflare.com, veda.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.148

NS records: walt.ns.cloudflare.com, veda.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 309ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.42.139, 172.67.206.30
AAAA22606:4700:3031::6815:2a8b, 2606:4700:3034::ac43:ce1e
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.usstl.com maps to four IP numbers: 2606:4700:3031::6815:2a8b, 2606:4700:3034::ac43:ce1e, 104.21.42.139 and 172.67.206.30.

Other host names, for instance aldebaran.co.uk, www.prime-clouds.sbs, ibangk.com, cdn.tobpto.cyou and usstl.com share IP numbers with mail.usstl.com.