`visabusinesschool.com`

DNSSEC	⚠️ Not signed
A	172.65.64.16^{🇺🇸 Cloudflare172.65.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	172.65.64.17^{🇺🇸 Cloudflare172.65.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.dnsvisa.com` ⭐
		A	2400:cb00:2049:1::a29f:999^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.9.153^{Cloudflare162.159.9.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.dnsvisa.com`
		A	2400:cb00:2049:1::a29f:8eb^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.235^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.dnsvisa.com`
		A	2400:cb00:2049:1::a29f:b39^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.57^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`contactemail hostmaster@visa.com`
SOA	`ns1.dnsvisa.com`dns@cloudflare.com serial=2360137024

`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=1774518757

Same first word

visabusinesschool.com

DNS History

7 records (5 active, 2 former)

●NSns1.dnsvisa.com2015-05-21 → 2026-03-26 · 2 obs

● 2015-05-21 06:02:48
● 2026-03-26 10:08:46

●NSns2.dnsvisa.com2015-05-21 → 2026-03-26 · 2 obs

● 2015-05-21 06:02:48
● 2026-03-26 10:08:46

●NSns3.dnsvisa.com2015-05-21 → 2026-03-26 · 2 obs

● 2015-05-21 06:02:48
● 2026-03-26 10:08:46

●A172.65.64.162026-03-26 → 2026-03-26 · 2 obs

○ 2017-05-24 01:41:48
● 2026-03-26 10:08:46

●A172.65.64.172026-03-26 → 2026-03-26 · 2 obs

○ 2017-05-24 01:41:48
● 2026-03-26 10:08:46

○A198.247.174.1612015-05-21 → 2016-03-28 · 4 obs

● 2015-05-21 06:02:48
● 2016-03-28 23:17:14
○ 2016-09-13 02:02:12
○ 2026-03-26 10:08:46

○A52.11.214.1452016-09-13 → 2017-05-24 · 4 obs

○ 2016-03-28 23:17:14
● 2016-09-13 02:02:12
● 2017-05-24 01:41:48
○ 2026-03-26 10:08:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
visabusinesschool.com	ns1.dnsvisa.com, ns2.dnsvisa.com, ns3.dnsvisa.com	3 records

✅ Authoritative Response

Server:162.159.11.57

NS records: ns1.dnsvisa.com, ns2.dnsvisa.com, ns3.dnsvisa.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for visabusinesschool.com (unsigned zone)

⏱️ Timing

Total: 169ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.65.64.17, 172.65.64.16`
NS	3	`ns1.dnsvisa.com, ns2.dnsvisa.com...`
TXT	1	`contactemail hostmaster@visa.com`
SOA	1	`ns1.dnsvisa.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.dnsvisa.com, ns2.dnsvisa.com, ns3.dnsvisa.com)

Analysis

IP Addresses

visabusinesschool.com resolves to two IP numbers: 172.65.64.16 and 172.65.64.17.

Other host names, for instance cybersource.co.gg, visapaybills.com, visaloyalty.com, cybersource.co.uk and visamultinational.com share IP numbers with visabusinesschool.com.

Name Servers

visabusinesschool.com delegates to three name servers: ns1.dnsvisa.com, ns2.dnsvisa.com and ns3.dnsvisa.com.

visabusinesschool.com shares some name servers with other domains, for example fintecsystems.com, merchantepos.com, cybersource.com.au, verifi.biz and visa.ky.

Host names with two IP numbers:

ns1.dnsvisa.com: 2400:cb00:2049:1::a29f:999 and 162.159.9.153

ns2.dnsvisa.com: 2400:cb00:2049:1::a29f:8eb and 162.159.8.235

ns3.dnsvisa.com: 2400:cb00:2049:1::a29f:b39 and 162.159.11.57

visabusinesschool.com - robtex.com