`cbsemathematics.com`

DNSSEC	⚠️ Not signed
A	2001:4860:4802:32::15^{🇺🇸 Google2001:4860::/32}
		PTR	`any-in-2001-4860-4802-32--15.1e100.net`
A	2001:4860:4802:34::15^{🇺🇸 Google2001:4860::/32}
A	2001:4860:4802:36::15^{🇺🇸 Google2001:4860::/32}
A	2001:4860:4802:38::15^{🇺🇸 Google2001:4860::/32}
A	216.239.32.21^{🇺🇸 Google216.239.32.0/24}
A	216.239.34.21^{🇺🇸 Google216.239.34.0/24}
A	216.239.36.21^{🇺🇸 Google216.239.36.0/24}
A	216.239.38.21^{🇺🇸 Google216.239.38.0/24}
NS	`ns-cloud-d1.googledomains.com` ⭐
		A	2001:4860:4802:32::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d1.googledomains.com`
		A	216.239.32.109^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-d1.googledomains.com`
NS	`ns-cloud-d2.googledomains.com`
		A	2001:4860:4802:34::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d2.googledomains.com`
		A	216.239.34.109^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-d2.googledomains.com`
NS	`ns-cloud-d3.googledomains.com`
		A	2001:4860:4802:36::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d3.googledomains.com`
		A	216.239.36.109^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-d3.googledomains.com`
NS	`ns-cloud-d4.googledomains.com`
		A	2001:4860:4802:38::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d4.googledomains.com`
		A	216.239.38.109^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-d4.googledomains.com`
SOA	`ns-cloud-d1.googledomains.com`cloud-dns-hostmaster@google.com serial=14

`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=1771291435

Subdomains

www.cbsemathematics.com

Same first word

cbsemathematics.com

DNS History

20 records (12 active, 8 former)

●NSns-cloud-d1.googledomains.com2026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●NSns-cloud-d2.googledomains.com2026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●NSns-cloud-d3.googledomains.com2026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●NSns-cloud-d4.googledomains.com2026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

○NSns1.above.com2015-11-04 → 2016-04-06 · 4 obs

● 2015-11-04 02:29:58
● 2016-04-06 23:46:08
○ 2016-10-29 13:49:54
○ 2026-03-24 12:13:30

○NSns1.dnsnuts.com2016-10-29 → 2016-10-29 · 4 obs

○ 2016-04-06 23:46:08
● 2016-10-29 13:49:54
○ 2018-08-18 12:13:50
○ 2026-03-24 12:13:30

○NSns2.above.com2015-11-04 → 2016-04-06 · 4 obs

● 2015-11-04 02:29:58
● 2016-04-06 23:46:08
○ 2016-10-29 13:49:54
○ 2026-03-24 12:13:30

○NSns2.dnsnuts.com2016-10-29 → 2016-10-29 · 4 obs

○ 2016-04-06 23:46:08
● 2016-10-29 13:49:54
○ 2018-08-18 12:13:50
○ 2026-03-24 12:13:30

○MXmail.post-host.net2015-11-04 → 2016-04-06 · 4 obs

● 2015-11-04 02:29:58
● 2016-04-06 23:46:08
○ 2016-10-29 13:49:54
○ 2026-03-24 12:13:30

○A103.224.182.2452016-01-18 → 2016-04-06 · 5 obs

○ 2015-11-04 02:29:58
● 2016-01-18 15:25:10
● 2016-04-06 23:46:08
○ 2016-10-29 13:49:54
○ 2026-03-24 12:13:30

○A192.184.12.622015-11-04 → 2015-11-04 · 3 obs

● 2015-11-04 02:29:58
○ 2016-01-18 15:25:10
○ 2026-03-24 12:13:30

●A2001:4860:4802:32::152026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A2001:4860:4802:34::152026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A2001:4860:4802:36::152026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A2001:4860:4802:38::152026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A216.239.32.212026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A216.239.34.212026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A216.239.36.212026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

●A216.239.38.212026-02-19 → 2026-03-24 · 3 obs

○ 2018-08-18 12:13:50
● 2026-02-19 17:26:38
● 2026-03-24 12:13:30

○A5.39.99.522016-10-29 → 2016-10-29 · 4 obs

○ 2016-04-06 23:46:08
● 2016-10-29 13:49:54
○ 2018-08-18 12:13:50
○ 2026-03-24 12:13:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net...	-
cbsemathematics.com	ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.36.109

NS records: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 305ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`216.239.34.21, 216.239.32.21...`
AAAA	4	`2001:4860:4802:34::15, 2001:4860:4802:38::15...`
NS	4	`ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com...`
SOA	1	`ns-cloud-d1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-d1.googledomains.com, ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com...)

Analysis

Hierarchy

www.cbsemathematics.com has cbsemathematics.com as its parent.

IP Addresses

cbsemathematics.com points to eight IP numbers: 2001:4860:4802:32::15, 2001:4860:4802:34::15, 2001:4860:4802:36::15, 2001:4860:4802:38::15, 216.239.32.21, 216.239.34.21, 216.239.36.21 and 216.239.38.21.

Other host names, for instance sanvicenteinforma.com, sg-in.com, judah.io, ehcopbc.net and tetoncam.com share IP numbers with cbsemathematics.com.

Name Servers

cbsemathematics.com is delegated to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.

cbsemathematics.com at least partially shares name servers with other domains such as sandbergphotos.com, ton(0x6e756465)sign.com, lagacetanewspaper.com, aerovisionsas.com and explorationidaho.com.

Host names with two IP numbers:

ns-cloud-d1.googledomains.com points to 2001:4860:4802:32::6d and 216.239.32.109

ns-cloud-d2.googledomains.com points to 2001:4860:4802:34::6d and 216.239.34.109

ns-cloud-d3.googledomains.com points to 2001:4860:4802:36::6d and 216.239.36.109

ns-cloud-d4.googledomains.com points to 2001:4860:4802:38::6d and 216.239.38.109

cbsemathematics.com - robtex.com