`optimumschool.com`

DNSSEC	⚠️ Not signed
A	34.42.100.71^{🇺🇸 Google34.42.0.0/16}
		PTR	`71.100.42.34.bc.googleusercontent.com`
NS	`ns-cloud-c1.googledomains.com` ⭐
		A	2001:4860:4802:32::6c^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-c1.googledomains.com`
		A	216.239.32.108^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-c1.googledomains.com`
NS	`ns-cloud-c2.googledomains.com`
		A	2001:4860:4802:34::6c^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-c2.googledomains.com`
		A	216.239.34.108^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-c2.googledomains.com`
NS	`ns-cloud-c3.googledomains.com`
		A	2001:4860:4802:36::6c^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-c3.googledomains.com`
		A	216.239.36.108^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-c3.googledomains.com`
NS	`ns-cloud-c4.googledomains.com`
		A	2001:4860:4802:38::6c^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-c4.googledomains.com`
		A	216.239.38.108^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-c4.googledomains.com`
SOA	`ns-cloud-c1.googledomains.com`cloud-dns-hostmaster@google.com serial=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=1775959132

Same first word

optimumschool.net

optimumschool.com

DNS History

15 records (5 active, 10 former)

●NSns-cloud-c1.googledomains.com2026-03-26 → 2026-04-12 · 3 obs

○ 2020-03-01 11:12:18
● 2026-03-26 09:14:48
● 2026-04-12 02:16:32

●NSns-cloud-c2.googledomains.com2026-03-26 → 2026-04-12 · 3 obs

○ 2020-03-01 11:12:18
● 2026-03-26 09:14:48
● 2026-04-12 02:16:32

●NSns-cloud-c3.googledomains.com2026-03-26 → 2026-04-12 · 3 obs

○ 2020-03-01 11:12:18
● 2026-03-26 09:14:48
● 2026-04-12 02:16:32

●NSns-cloud-c4.googledomains.com2026-03-26 → 2026-04-12 · 3 obs

○ 2020-03-01 11:12:18
● 2026-03-26 09:14:48
● 2026-04-12 02:16:32

○NSns29.domaincontrol.com2015-06-24 → 2017-03-18 · 6 obs

● 2015-06-24 23:07:04
● 2016-01-24 22:32:48
○ 2016-04-18 08:08:32
● 2017-03-18 14:10:54
○ 2020-03-01 11:12:18
○ 2026-04-12 02:16:32

○NSns30.domaincontrol.com2015-06-24 → 2017-03-18 · 6 obs

● 2015-06-24 23:07:04
● 2016-01-24 22:32:48
○ 2016-04-18 08:08:32
● 2017-03-18 14:10:54
○ 2020-03-01 11:12:18
○ 2026-04-12 02:16:32

○NSnsg1.namebrightdns.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-18 14:10:54
● 2020-03-01 11:12:18
○ 2026-03-26 09:14:48
○ 2026-04-12 02:16:32

○NSnsg2.namebrightdns.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-18 14:10:54
● 2020-03-01 11:12:18
○ 2026-03-26 09:14:48
○ 2026-04-12 02:16:32

○MXmailstore1.secureserver.net2015-06-24 → 2017-03-18 · 6 obs

● 2015-06-24 23:07:04
● 2016-01-24 22:32:48
○ 2016-04-18 08:08:32
● 2017-03-18 14:10:54
○ 2020-03-01 11:12:18
○ 2026-04-12 02:16:32

○MXsmtp.secureserver.net2015-06-24 → 2017-03-18 · 6 obs

● 2015-06-24 23:07:04
● 2016-01-24 22:32:48
○ 2016-04-18 08:08:32
● 2017-03-18 14:10:54
○ 2020-03-01 11:12:18
○ 2026-04-12 02:16:32

○A184.168.221.602017-03-18 → 2017-03-18 · 4 obs

○ 2016-04-18 08:08:32
● 2017-03-18 14:10:54
○ 2020-03-01 11:12:18
○ 2026-04-12 02:16:32

○A184.168.221.642016-01-24 → 2016-01-24 · 4 obs

○ 2015-11-03 13:49:46
● 2016-01-24 22:32:48
○ 2016-04-18 08:08:32
○ 2026-04-12 02:16:32

○A191.101.154.1152015-06-24 → 2015-11-03 · 4 obs

● 2015-06-24 23:07:04
● 2015-11-03 13:49:46
○ 2016-01-24 22:32:48
○ 2026-04-12 02:16:32

●A34.42.100.712026-03-26 → 2026-04-12 · 3 obs

○ 2020-03-01 11:12:18
● 2026-03-26 09:14:48
● 2026-04-12 02:16:32

○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2020-03-01 → 2020-03-01 · 3 obs

● 2020-03-01 11:12:18
○ 2026-03-26 09:14:48
○ 2026-04-12 02:16:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net...	-
optimumschool.com	ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.38.108

NS records: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimumschool.com (unsigned zone)

⏱️ Timing

Total: 424ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`34.42.100.71`
NS	4	`ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com...`
SOA	1	`ns-cloud-c1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-c1.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com...)

Analysis

IP Addresses

optimumschool.com points to a single IP: 34.42.100.71.

Other host names, for instance 5quick.com, friesfranchise.com, gigaico.com, cosmios.com and dualit.net share IP numbers with optimumschool.com.

Name Servers

optimumschool.com is delegated to four name servers: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.

optimumschool.com at least partially shares its name servers with other domains, for instance happyboom.com, jameskyle.org, ldream.org, exclusivelyyours.ltd and gowenhomes.com.

Host names with two IPs: ns-cloud-c1.googledomains.com points to 2001:4860:4802:32::6c and 216.239.32.108; ns-cloud-c2.googledomains.com points to 2001:4860:4802:34::6c and 216.239.34.108; ns-cloud-c3.googledomains.com points to 2001:4860:4802:36::6c and 216.239.36.108; ns-cloud-c4.googledomains.com points to 2001:4860:4802:38::6c and 216.239.38.108.

optimumschool.com - robtex.com