ns2.mailrb2b.com - robtex.com

ns2.mailrb2b.com

DNSSEC⚠️ Not signed

mailrb2b.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:8d9e🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:5eef🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.94.239Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.141.158🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnolan.ns.cloudflare.com ⭐
NSsonia.ns.cloudflare.com
MXmailrb2b-com.mail.protection.outlook.com ⭐
TXTMS=ms56710371
TXTv=spf1 include:spf.protection.outlook.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.94.239, 172.67.141.158
IPv6 hints2606:4700:3030::ac43:8d9e, 2606:4700:3031::6815:5eef
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=13, name=cloudflare-ech.com
SOAnolan.ns.cloudflare.comdns@cloudflare.com serial=2399815705

Previously NS for

mailrb2b.com

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DNS History

1 record (0 active, 1 former)

202120222023202420252026A167.71.91.255
○A167.71.91.2552020-02-04 → 2020-02-04 · 3 obs
● 2020-02-04 10:09:44
○ 2026-04-06 13:11:16
○ 2026-05-11 20:47:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
mailrb2b.comsonia.ns.cloudflare.com, nolan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.56

NS records: sonia.ns.cloudflare.com, nolan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mailrb2b.com (unsigned zone)

⏱️ Timing

Total: 544ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 12

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