firstcb.com - dns.ninja

`firstcb.com`

DNSSEC	⚠️ Not signed
A	2a06:98c1:3102::ac40:92a3^{🇺🇸 Cloudflare2a06:98c1:3102::/48} ✓ In HTTPS hints
A	2a06:98c1:3106::6812:295d^{🇺🇸 Cloudflare2a06:98c1:3106::/48} ✓ In HTTPS hints
A	104.18.41.93^{Cloudflare104.18.41.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.64.146.163^{🇺🇸 Cloudflare172.64.146.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ns1.jh-cf.com` ⭐
		A	2400:cb00:2049:1::c629:df76^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	198.41.223.118^{Cloudflare198.41.223.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cf-198-41-223-118.cloudflare.com`
NS	`ns2.jh-cf.com`
		A	2400:cb00:2049:1::a29f:9b0^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.9.176^{Cloudflare162.159.9.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`d183798a.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
MX	`d183798b.ess.barracudanetworks.com`⁽²⁰⁾
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
TXT	`MS=CE9733097FC4CEE7C96BFA4E51025F14DDD21EE0`
TXT	`MS=ms90700545`
TXT	`google-site-verification=tL2WAzrFYxcwIT9sQ-cWJhT1FiBssE9ibmwU-A1hzFA`
TXT	`v2fin0roni9k7ajpi5kbl6bsiu`
TXT	`v=spf1 mx ip4:35.131.217.48/29 include:spf.ess.barracudanetworks.com include...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.41.93, 172.64.146.163
		IPv6 hints	2a06:98c1:3102::ac40:92a3, 2a06:98c1:3106::6812:295d
SOA	`ns1.jh-cf.com`dns@cloudflare.com serial=2407068445

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784899117

Subdomains

mail2.firstcb.com

mail.firstcb.com

Same first word

firstcb.com

firstcb.mobi

firstcb.financial

firstcb.org

Similar names

firstbc.org

bcfirst.party

bcfirst.ca

cbfirst.com

DNS History

15 records (8 active, 7 former)

●NSns1.jh-cf.com2026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

○NSns1.s403.sureserver.com2015-05-05 → 2016-12-02 · 4 obs

● 2015-05-05 18:57:14
● 2016-12-02 18:40:22
○ 2026-02-17 10:19:58
○ 2026-07-24 13:24:42

●NSns2.jh-cf.com2026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

○NSns2.s403.sureserver.com2015-05-05 → 2016-12-02 · 4 obs

● 2015-05-05 18:57:14
● 2016-12-02 18:40:22
○ 2026-02-17 10:19:58
○ 2026-07-24 13:24:42

●MXd183798a.ess.barracudanetworks.com2026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

●MXd183798b.ess.barracudanetworks.com2026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

○MXmail.firstcb.com2015-05-05 → 2016-12-02 · 4 obs

● 2015-05-05 18:57:14
● 2016-12-02 18:40:22
○ 2026-02-17 10:19:58
○ 2026-07-24 13:24:42

○MXmail2.firstcb.com2015-05-05 → 2016-12-02 · 4 obs

● 2015-05-05 18:57:14
● 2016-12-02 18:40:22
○ 2026-02-17 10:19:58
○ 2026-07-24 13:24:42

●A104.18.41.932026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

●A172.64.146.1632026-02-17 → 2026-07-24 · 3 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-07-24 13:24:42

○A216.35.197.2512015-05-05 → 2016-12-02 · 4 obs

● 2015-05-05 18:57:14
● 2016-12-02 18:40:22
○ 2026-02-17 10:19:58
○ 2026-07-24 13:24:42

●A2a06:98c1:3102::ac40:92a32026-07-09 → 2026-07-24 · 3 obs

○ 2026-06-13 23:19:08
● 2026-07-09 00:40:12
● 2026-07-24 13:24:42

●A2a06:98c1:3106::6812:295d2026-07-09 → 2026-07-24 · 3 obs

○ 2026-06-13 23:19:08
● 2026-07-09 00:40:12
● 2026-07-24 13:24:42

○A2a06:98c1:3106::ac40:92a32026-02-17 → 2026-06-13 · 5 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-06-13 23:19:08
○ 2026-07-09 00:40:12
○ 2026-07-24 13:24:42

○A2a06:98c1:310d::6812:295d2026-02-17 → 2026-06-13 · 5 obs

○ 2016-12-02 18:40:22
● 2026-02-17 10:19:58
● 2026-06-13 23:19:08
○ 2026-07-09 00:40:12
○ 2026-07-24 13:24:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
firstcb.com	ns1.jh-cf.com, ns2.jh-cf.com	2 records

✅ Authoritative Response

Server:198.41.223.118

NS records: ns1.jh-cf.com, ns2.jh-cf.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstcb.com (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.64.146.163, 104.18.41.93`
AAAA	2	`2a06:98c1:3102::ac40:92a3, 2a06:98c1:3106::6812:295d`
NS	2	`ns1.jh-cf.com, ns2.jh-cf.com`
MX	2	`d183798a.ess.barracudanetworks.com (pri:, d183798b.ess.barracudanetworks.com (pri:`
TXT	5	`MS=CE9733097FC4CEE7C96BFA4E51025F14DDD21, MS=ms90700545...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`ns1.jh-cf.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.jh-cf.com, ns2.jh-cf.com)

Analysis

Hierarchy

firstcb.com serves as the parent of mail2.firstcb.com and mail.firstcb.com.

IP Addresses

firstcb.com resolves to four IP addresses: 104.18.41.93, 172.64.146.163, 2a06:98c1:3102::ac40:92a3 and 2a06:98c1:3106::6812:295d.

commcloud.prod-bbqv-large-be.cc-ecdn.net.cdn.cloudflare.net, www.auctionzip.com.cdn.cloudflare.net, centralbankkc.com plus two other host names have IP numbers in common with firstcb.com.

Name Servers

Two name servers handle the delegation for firstcb.com: ns1.jh-cf.com and ns2.jh-cf.com.

The name server configuration of firstcb.com is shared with other domains, for instance usscofcu.com, bankofvernon.com, commercialtrust.com and two others.

ns1.jh-cf.com and ns2.jh-cf.com both carry two IP addresses. The A records for ns1.jh-cf.com are 198.41.223.118 and 2400:cb00:2049:1::c629:df76; the A records for ns2.jh-cf.com are 162.159.9.176 and 2400:cb00:2049:1::a29f:9b0.

Mail Servers

firstcb.com uses two mail servers, d183798a.ess.barracudanetworks.com and d183798b.ess.barracudanetworks.com.

d183798a.ess.barracudanetworks.com and d183798b.ess.barracudanetworks.com both direct to 209.222.82.252, 209.222.82.253 and 209.222.82.255, all three IP addresses being shared between the two hosts.

d183798a.ess.barracudanetworks.com along with d183798b.ess.barracudanetworks.com each resolve to 209.222.82.252 IP addresses.

d183798a.ess.barracudanetworks.com along with d183798b.ess.barracudanetworks.com each resolve to 209.222.82.253 IP addresses.

d183798a.ess.barracudanetworks.com along with d183798b.ess.barracudanetworks.com each resolve to 209.222.82.255 IP addresses.