vtknowledgeworks.com - dns.ninja

`vtknowledgeworks.com`

DNSSEC	⚠️ Not signed
A	216.252.205.113^{🇺🇸 BNT-EXPORT-01216.252.192.0/20 2200 Kraft Dr. Suite 2250 Blacksburg VA 24060 United States}
		PTR	`vtknowledgeworks.com`
		PTR	`agrivision2.vtcrc.net`
NS	`localhost.bnt.com` ⭐
NS	`ns1.bnt.com`
		A	216.252.192.38^{🇺🇸 BNT-EXPORT-01216.252.192.0/20 2200 Kraft Dr. Suite 2250 Blacksburg VA 24060 United States}
			PTR	`rainer.bnt.com`
NS	`ns2.bnt.com`
		A	216.252.193.231^{🇺🇸 BNT-EXPORT-01216.252.192.0/20 2200 Kraft Dr. Suite 2250 Blacksburg VA 24060 United States}
			PTR	`ns2.bnt.com`
MX	`d103330a.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	`d103330b.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	`v=spf1 ip4:216.252.206.132 include:spf.protection.outlook.com include:spf.ess...`
SOA	`localhost.bnt.com`hostmaster@bnt.com 2024-02-18 #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=1785339162

PTR for

113.205.252.216.in-addr.arpa

Same first word

vtknowledgeworks.com

DNS History

10 records (6 active, 4 former)

●NSlocalhost.bnt.com2015-05-06 → 2026-07-29 · 3 obs

○ 2007-08-15 00:58:06
● 2015-05-06 17:13:34
● 2026-07-29 15:54:04

●NSns1.bnt.com2007-08-15 → 2026-07-29 · 2 obs

● 2007-08-15 00:58:06
● 2026-07-29 15:54:04

●NSns2.bnt.com2007-08-15 → 2026-07-29 · 2 obs

● 2007-08-15 00:58:06
● 2026-07-29 15:54:04

●MXd103330a.ess.barracudanetworks.com2017-04-06 → 2026-07-29 · 3 obs

○ 2016-09-18 07:19:12
● 2017-04-06 11:26:22
● 2026-07-29 15:54:04

●MXd103330b.ess.barracudanetworks.com2017-04-06 → 2026-07-29 · 3 obs

○ 2016-09-18 07:19:12
● 2017-04-06 11:26:22
● 2026-07-29 15:54:04

○MXfiltmx1.bnt.com2007-08-15 → 2016-09-18 · 4 obs

● 2007-08-15 00:58:06
● 2016-09-18 07:19:12
○ 2017-04-06 11:26:22
○ 2026-07-29 15:54:04

○MXfiltmx2.bnt.com2007-08-15 → 2016-09-18 · 4 obs

● 2007-08-15 00:58:06
● 2016-09-18 07:19:12
○ 2017-04-06 11:26:22
○ 2026-07-29 15:54:04

○A206.158.106.1532007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 00:58:06
○ 2015-05-06 17:13:34
○ 2026-07-29 15:54:04

●A216.252.205.1132026-02-20 → 2026-07-29 · 3 obs

○ 2017-04-06 11:26:22
● 2026-02-20 08:35:46
● 2026-07-29 15:54:04

○A50.87.145.422015-05-06 → 2017-04-06 · 5 obs

○ 2007-08-15 00:58:06
● 2015-05-06 17:13:34
● 2017-04-06 11:26:22
○ 2026-02-20 08:35:46
○ 2026-07-29 15:54:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
vtknowledgeworks.com	ns2.bnt.com, ns1.bnt.com	2 records

✅ Authoritative Response

Server:216.252.192.38

NS records: ns2.bnt.com, ns1.bnt.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vtknowledgeworks.com (unsigned zone)

⏱️ Timing

Total: 219ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.252.205.113`
NS	2	`ns2.bnt.com, ns1.bnt.com`
MX	2	`d103330a.ess.barracudanetworks.com (pri:, d103330b.ess.barracudanetworks.com (pri:`
TXT	1	`v=spf1 ip4:216.252.206.132 include:spf.p`
SOA	1	`localhost.bnt.com hostmaster.bnt.com`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

vtknowledgeworks.com resolves to just one IP address, 216.252.205.113.

Name Servers

vtknowledgeworks.com has three name servers — localhost.bnt.com, ns1.bnt.com and ns2.bnt.com.

vtknowledgeworks.com shares at least some of its name servers with other domains, including spiritstories.com, 203.252.216.in-addr.arpa, boostabook.com and two others.

ns1.bnt.com and ns2.bnt.com each resolve to one IP number: ns1.bnt.com points to 216.252.192.38 and ns2.bnt.com points to 216.252.193.231.

Mail Servers

vtknowledgeworks.com is served by two mail servers, d103330a.ess.barracudanetworks.com and d103330b.ess.barracudanetworks.com.

Both d103330a.ess.barracudanetworks.com and d103330b.ess.barracudanetworks.com point to the same three IP addresses: 209.222.82.252, 209.222.82.253 and 209.222.82.255.

The host names d103330a.ess.barracudanetworks.com and d103330b.ess.barracudanetworks.com both resolve to 209.222.82.252 IP addresses.

The host names d103330a.ess.barracudanetworks.com and d103330b.ess.barracudanetworks.com both resolve to 209.222.82.253 IP addresses.

The host names d103330a.ess.barracudanetworks.com and d103330b.ess.barracudanetworks.com both resolve to 209.222.82.255 IP addresses.