`mail.rbcpainc.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:83fd^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:46a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.106^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.253^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.106, 172.67.131.253
		IPv6 hints	2606:4700:3033::ac43:83fd, 2606:4700:3036::6815:46a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=112, name=cloudflare-ech.com

`rbcpainc.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:83fd^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:46a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.106^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.253^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ali.ns.cloudflare.com` ⭐
NS	`nitin.ns.cloudflare.com`
MX	`eu-smtp-inbound-1.mimecast.com` ⭐
MX	`eu-smtp-inbound-2.mimecast.com`⁽²⁰⁾
TXT	`OVB/ggaq/Uosm7e7jKu9SVjAns7/LVFKEvuo2akumYehlyCdk78HlwNsqQlW1FV3+nm+YXShZbjpK...`
TXT	`v=spf1 include:_netblocks.mimecast.com include:mrtedtalentlink.com include:re...`
TXT	`v=verifydomain MS=7277203`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.106, 172.67.131.253
		IPv6 hints	2606:4700:3033::ac43:83fd, 2606:4700:3036::6815:46a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=112, name=cloudflare-ech.com
SOA	`ali.ns.cloudflare.com`dns@cloudflare.com serial=2398789096

PTR for

186.163.37.24.in-addr.arpa

Same first word

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DNS History

7 records (4 active, 3 former)

●A104.21.4.1062026-04-12 → 2026-04-14 · 3 obs

○ 2016-11-20 12:03:54
● 2026-04-12 04:57:48
● 2026-04-14 08:46:24

●A172.67.131.2532026-04-12 → 2026-04-14 · 3 obs

○ 2016-11-20 12:03:54
● 2026-04-12 04:57:48
● 2026-04-14 08:46:24

○A207.96.226.722016-01-03 → 2016-11-20 · 5 obs

○ 2015-10-24 08:53:52
● 2016-01-03 03:39:36
● 2016-11-20 12:03:54
○ 2026-04-12 04:57:48
○ 2026-04-14 08:46:24

○A24.37.163.1862015-06-07 → 2015-06-07 · 3 obs

● 2015-06-07 06:18:22
○ 2015-10-24 08:53:52
○ 2026-04-14 08:46:24

●A2606:4700:3033::ac43:83fd2026-04-12 → 2026-04-14 · 3 obs

○ 2016-11-20 12:03:54
● 2026-04-12 04:57:48
● 2026-04-14 08:46:24

●A2606:4700:3036::6815:46a2026-04-12 → 2026-04-14 · 3 obs

○ 2016-11-20 12:03:54
● 2026-04-12 04:57:48
● 2026-04-14 08:46:24

○CNAMEmail.rcgt.com2016-01-03 → 2016-11-20 · 4 obs

● 2016-01-03 03:39:36
● 2016-11-20 12:03:54
○ 2026-04-12 04:57:48
○ 2026-04-14 08:46:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rbcpainc.com	ali.ns.cloudflare.com, nitin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.215

NS records: ali.ns.cloudflare.com, nitin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rbcpainc.com (unsigned zone)

⏱️ Timing

Total: 114ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.106, 172.67.131.253`
AAAA	2	`2606:4700:3036::6815:46a, 2606:4700:3033::ac43:83fd`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by mail.rbcpainc.com: 2606:4700:3033::ac43:83fd, 2606:4700:3036::6815:46a, 104.21.4.106 and 172.67.131.253.

other host names including www.karinakeberga.com, nigelcolesphotography.co.uk, mail.aaglassstudio.com, shortstorymasterpieces.altervista.org.cdn.cloudflare.net and lqlpchhficknp.site share IP numbers with mail.rbcpainc.com.

mail.rbcpainc.com - robtex.com