jaybrook.com - dns.ninja

`jaybrook.com`

DNSSEC	⚠️ Not signed
A	66.118.64.221^{🇺🇸 CITYNET-AS66.118.64.0/19 Citynet Block}
NS	`dns0.citynet.net` ⭐
		A	66.118.80.13^{🇺🇸 CITYNET-AS66.118.64.0/19 Citynet Block}
			PTR	`dns0.citynet.net`
NS	`dns1.citynet.net`
		A	66.118.64.99^{🇺🇸 CITYNET-AS66.118.64.0/19 Citynet Block}
			PTR	`dns1.citynet.net`
NS	`dns2.citynet.net`
		A	66.118.80.14^{🇺🇸 CITYNET-AS66.118.64.0/19 Citynet Block}
			PTR	`dns2.citynet.net`
NS	`dns3.citynet.net`
		A	66.118.64.96^{🇺🇸 CITYNET-AS66.118.64.0/19 Citynet Block}
			PTR	`dns3.citynet.net`
MX	`d241368a.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	`d241368b.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=ms80265306`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.c...`
SOA	`dns0.citynet.net`hostmaster@citynet.net 2021-05-28 #1

`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=1781065448

Same first word

jaybrook.com

DNS History

14 records (7 active, 7 former)

●NSdns0.citynet.net2016-09-12 → 2026-06-10 · 3 obs

○ 2016-03-28 09:32:06
● 2016-09-12 19:36:08
● 2026-06-10 04:48:20

●NSdns1.citynet.net2016-09-12 → 2026-06-10 · 3 obs

○ 2016-03-28 09:32:06
● 2016-09-12 19:36:08
● 2026-06-10 04:48:20

●NSdns2.citynet.net2016-09-12 → 2026-06-10 · 3 obs

○ 2016-03-28 09:32:06
● 2016-09-12 19:36:08
● 2026-06-10 04:48:20

●NSdns3.citynet.net2016-09-12 → 2026-06-10 · 3 obs

○ 2016-03-28 09:32:06
● 2016-09-12 19:36:08
● 2026-06-10 04:48:20

○NSns1.wvinternetservices.com2015-08-18 → 2016-03-28 · 4 obs

● 2015-08-18 22:44:10
● 2016-03-28 09:32:06
○ 2016-09-12 19:36:08
○ 2026-06-10 04:48:20

○NSns2.wvinternetservices.com2015-08-18 → 2016-03-28 · 4 obs

● 2015-08-18 22:44:10
● 2016-03-28 09:32:06
○ 2016-09-12 19:36:08
○ 2026-06-10 04:48:20

○NSns3.citynet.net2015-08-18 → 2015-12-14 · 4 obs

● 2015-08-18 22:44:10
● 2015-12-14 21:30:48
○ 2016-03-28 09:32:06
○ 2026-06-10 04:48:20

○NSns4.citynet.net2015-08-18 → 2015-12-14 · 4 obs

● 2015-08-18 22:44:10
● 2015-12-14 21:30:48
○ 2016-03-28 09:32:06
○ 2026-06-10 04:48:20

●MXd241368a.ess.barracudanetworks.com2026-05-22 → 2026-06-10 · 3 obs

○ 2017-04-18 11:39:42
● 2026-05-22 19:38:26
● 2026-06-10 04:48:20

●MXd241368b.ess.barracudanetworks.com2026-05-22 → 2026-06-10 · 3 obs

○ 2017-04-18 11:39:42
● 2026-05-22 19:38:26
● 2026-06-10 04:48:20

○MXrx.citynet.net2015-08-18 → 2017-04-18 · 4 obs

● 2015-08-18 22:44:10
● 2017-04-18 11:39:42
○ 2026-05-22 19:38:26
○ 2026-06-10 04:48:20

○A66.118.64.2082015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 22:44:10
○ 2015-12-14 21:30:48
○ 2026-06-10 04:48:20

○A66.118.64.2202015-12-14 → 2017-04-18 · 5 obs

○ 2015-08-18 22:44:10
● 2015-12-14 21:30:48
● 2017-04-18 11:39:42
○ 2026-05-22 19:38:26
○ 2026-06-10 04:48:20

●A66.118.64.2212026-05-22 → 2026-06-10 · 3 obs

○ 2017-04-18 11:39:42
● 2026-05-22 19:38:26
● 2026-06-10 04:48:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jaybrook.com	dns0.citynet.net, dns1.citynet.net, dns3.citynet.net, dns2.citynet.net	-

✅ Authoritative Response

Server:66.118.64.99

NS records: dns0.citynet.net, dns1.citynet.net, dns3.citynet.net, dns2.citynet.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jaybrook.com (unsigned zone)

⏱️ Timing

Total: 552ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.118.64.221`
NS	4	`dns1.citynet.net, dns3.citynet.net...`
MX	2	`d241368b.ess.barracudanetworks.com (pri:, d241368a.ess.barracudanetworks.com (pri:`
TXT	2	`MS=ms80265306, v=spf1 include:spf.protection.outlook.co`
SOA	1	`dns0.citynet.net hostmaster.citynet.net`

Analysis

IP Addresses

jaybrook.com resolves to one IP address: 66.118.64.221.

murgie.com, pcmasystems.net, jacmathchem.com and two other host names share IP numbers with jaybrook.com.

Name Servers

jaybrook.com is served by 4 authoritative name servers: dns0.citynet.net, dns1.citynet.net, dns2.citynet.net and dns3.citynet.net.

jaybrook.com partially shares its NS delegation with several other domains, including outcome-medical.com, wvgranville.com, ezpickens.com and two others.

Each of the four hosts dns0.citynet.net, dns1.citynet.net, dns2.citynet.net and dns3.citynet.net points to a single IP address — dns0.citynet.net points to 66.118.80.13, dns1.citynet.net points to 66.118.64.99, dns2.citynet.net points to 66.118.80.14 and dns3.citynet.net points to 66.118.64.96.

Mail Servers

Mail for jaybrook.com is handled by two mail servers — d241368a.ess.barracudanetworks.com and d241368b.ess.barracudanetworks.com.

Each of d241368a.ess.barracudanetworks.com and d241368b.ess.barracudanetworks.com has three IP addresses: 209.222.82.252, 209.222.82.253 and 209.222.82.255.

Both d241368a.ess.barracudanetworks.com and d241368b.ess.barracudanetworks.com resolve to 209.222.82.252 IP addresses each.

Both d241368a.ess.barracudanetworks.com and d241368b.ess.barracudanetworks.com resolve to 209.222.82.253 IP addresses each.

Both d241368a.ess.barracudanetworks.com and d241368b.ess.barracudanetworks.com resolve to 209.222.82.255 IP addresses each.