mail.gsubz.com - robtex.com

mail.gsubz.com

DNSSEC⚠️ Not signed
A23.81.33.25🇺🇸 LEASEWEB-UK-LON-1123.81.32.0/21
PTRs2.gsubz.com
MXmail.gsubz.com ⭐
A23.81.33.25🇺🇸 LEASEWEB-UK-LON-1123.81.32.0/21
PTRs2.gsubz.com
MXmail.mail.gsubz.com ⭐
TXTv=spf1 a mx ip4:23.81.33.25 ~all

gsubz.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:4a79🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:9e5b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.74.121Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.91🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbeau.ns.cloudflare.com ⭐
NSchin.ns.cloudflare.com
MXmail.gsubz.com ⭐
TXTv=spf1 a mx ip4:23.81.33.25 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.74.121, 172.67.158.91
IPv6 hints2606:4700:3031::6815:4a79, 2606:4700:3036::ac43:9e5b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=177, name=cloudflare-ech.com
SOAbeau.ns.cloudflare.comdns@cloudflare.com serial=2408782767
📈 Tranco rank: #112,534

MX for

mail.gsubz.com
gsubz.com

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DNS History

3 records (3 active, 0 former)

MXmail.gsubz.commail.mail.gsubz.comA23.81.33.25
●MXmail.gsubz.com2026-02-15 → 2026-07-18 · 2 obs
● 2026-02-15 04:28:06
● 2026-07-18 13:16:42
●MXmail.mail.gsubz.com2026-02-15 → 2026-07-18 · 2 obs
● 2026-02-15 04:28:06
● 2026-07-18 13:16:42
●A23.81.33.252026-02-15 → 2026-07-18 · 2 obs
● 2026-02-15 04:28:06
● 2026-07-18 13:16:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net...-
gsubz.comchin.ns.cloudflare.com, beau.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.73

NS records: chin.ns.cloudflare.com, beau.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gsubz.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

TypeCountSample Data
A123.81.33.25
MX2mail.gsubz.com (pri: 10), mail.mail.gsubz.com (pri: 10)
TXT1v=spf1 a mx ip4:23.81.33.25 ~all

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

Mail for mail.gsubz.com and gsubz.com is routed through the mail server mail.gsubz.com.

mail.mail.gsubz.com is often seen acting as a mail server in combination with mail.gsubz.com.

IP Addresses

mail.gsubz.com resolves to just one IP address, 23.81.33.25.

The host names mail.everythingsub.com, s2.gsubz.com, _dc-mx.478e8a032126.everythingsub.com and s1.gsubz.com all share IP numbers with mail.gsubz.com.

Mail Servers

mail.gsubz.com uses two mail servers, mail.gsubz.com and mail.mail.gsubz.com.

mail.gsubz.com and other domains — gsubz.com for instance — share at least some mail servers.

Host names that point to one IP address:

mail.gsubz.com directs to 23.81.33.25.