mail.4b2b.net - robtex.com

mail.4b2b.net

DNSSEC⚠️ Not signed
A65.109.30.147🇫🇮 Hetzner65.109.0.0/16 HETZNER-DC
PTRmail.4hosting.net

4b2b.net

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:708🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:9b58🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.7.8Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.155.88🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaryanna.ns.cloudflare.com ⭐
NSoswald.ns.cloudflare.com
MXmail.4b2b.net ⭐
TXTstripe-verification=82641f5c2fa28843f9ecb35d93c140e2b01dc5675dcb0b24be0df2500...
TXTv=spf1 include:mailgun.org ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.7.8, 172.67.155.88
IPv6 hints2606:4700:3031::6815:708, 2606:4700:3032::ac43:9b58
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAaryanna.ns.cloudflare.comdns@cloudflare.com serial=2402668485

MX for

4b2b.net

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DNS History

1 record (1 active, 0 former)

A65.109.30.147
●A65.109.30.1472026-04-24 → 2026-04-27 · 2 obs
● 2026-04-24 21:24:40
● 2026-04-27 20:16:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netl.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...-
4b2b.netoswald.ns.cloudflare.com, aryanna.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.218

NS records: oswald.ns.cloudflare.com, aryanna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4b2b.net (unsigned zone)

⏱️ Timing

Total: 308ms | Queries: -

📄 Records

TypeCountSample Data
A165.109.30.147

Analysis

Mail Server Role

The mail server for 4b2b.net is mail.4b2b.net.

IP Addresses

mail.4b2b.net points to a single IP number: 65.109.30.147.

Other host names such as mail.4hosting.net and 4hosting.net share IP numbers with mail.4b2b.net.