`classroom200.org`

DNSSEC	⚠️ Not signed
A	2620:1ec:46::40^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
A	2620:1ec:bdf::40^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
A	13.107.213.40^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
A	13.107.246.40^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`mira.ns.cloudflare.com`
		A	2606:4700:50::adf5:3acc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mira.ns.cloudflare.com`
		A	108.162.192.204^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	172.64.32.204^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	173.245.58.204^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2399020103

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1775316829

Same first word

classroom200.org

DNS History

29 records (6 active, 23 former)

●NSbob.ns.cloudflare.com2026-03-31 → 2026-04-04 · 2 obs

● 2026-03-31 22:48:14
● 2026-04-04 16:08:46

●NSmira.ns.cloudflare.com2026-03-31 → 2026-04-04 · 2 obs

● 2026-03-31 22:48:14
● 2026-04-04 16:08:46

●A13.107.213.402026-04-01 → 2026-04-04 · 8 obs

○ 2026-04-01 07:51:36
● 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
○ 2026-04-04 03:11:50
● 2026-04-04 05:19:22
○ 2026-04-04 09:22:58
○ 2026-04-04 14:02:20
● 2026-04-04 16:08:46

○A13.107.213.692026-03-31 → 2026-04-04 · 23 obs

● 2026-03-31 22:48:14
○ 2026-04-01 00:57:12
● 2026-04-01 06:55:40
● 2026-04-01 07:51:36
○ 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
● 2026-04-01 12:30:10
● 2026-04-01 13:42:50
○ 2026-04-01 22:38:14
○ 2026-04-02 03:12:44
● 2026-04-02 10:50:38
● 2026-04-02 21:52:42
○ 2026-04-02 23:38:10
○ 2026-04-03 03:32:38
● 2026-04-03 12:32:58
○ 2026-04-03 20:04:32
○ 2026-04-04 00:10:44
● 2026-04-04 01:44:32
● 2026-04-04 03:11:50
○ 2026-04-04 05:19:22
● 2026-04-04 09:22:58
● 2026-04-04 14:02:20
○ 2026-04-04 16:08:46

○A13.107.226.452026-04-01 → 2026-04-03 · 10 obs

○ 2026-03-31 22:48:14
● 2026-04-01 00:57:12
○ 2026-04-01 06:55:40
○ 2026-04-02 23:38:10
● 2026-04-03 01:16:28
○ 2026-04-03 03:32:38
○ 2026-04-03 20:04:32
● 2026-04-03 21:41:40
○ 2026-04-04 00:10:44
○ 2026-04-04 16:08:46

●A13.107.246.402026-04-01 → 2026-04-04 · 8 obs

○ 2026-04-01 07:51:36
● 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
○ 2026-04-04 03:11:50
● 2026-04-04 05:19:22
○ 2026-04-04 09:22:58
○ 2026-04-04 14:02:20
● 2026-04-04 16:08:46

○A13.107.246.692026-03-31 → 2026-04-04 · 23 obs

○A13.107.253.452026-04-01 → 2026-04-03 · 10 obs

○A150.171.109.1002026-04-02 → 2026-04-04 · 10 obs

○ 2026-04-01 22:38:14
● 2026-04-02 03:12:44
○ 2026-04-02 10:50:38
○ 2026-04-02 21:52:42
● 2026-04-02 23:38:10
○ 2026-04-03 01:16:28
○ 2026-04-03 21:41:40
● 2026-04-04 00:10:44
○ 2026-04-04 01:44:32
○ 2026-04-04 16:08:46

○A150.171.109.1012026-04-01 → 2026-04-01 · 4 obs

○ 2026-04-01 08:44:58
● 2026-04-01 10:55:22
○ 2026-04-01 12:30:10
○ 2026-04-04 16:08:46

○A150.171.109.1452026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 12:32:58
● 2026-04-03 20:04:32
○ 2026-04-03 21:41:40
○ 2026-04-04 16:08:46

○A150.171.109.1482026-04-01 → 2026-04-01 · 4 obs

○ 2026-04-01 13:42:50
● 2026-04-01 22:38:14
○ 2026-04-02 03:12:44
○ 2026-04-04 16:08:46

○A150.171.109.352026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 01:16:28
● 2026-04-03 03:32:38
○ 2026-04-03 12:32:58
○ 2026-04-04 16:08:46

○A2603:1061:14:20::12026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 01:16:28
● 2026-04-03 03:32:38
○ 2026-04-03 12:32:58
○ 2026-04-04 16:08:46

○A2603:1061:14:22::12026-04-01 → 2026-04-01 · 4 obs

○ 2026-04-01 08:44:58
● 2026-04-01 10:55:22
○ 2026-04-01 12:30:10
○ 2026-04-04 16:08:46

○A2603:1061:14:23::12026-04-02 → 2026-04-03 · 7 obs

○ 2026-04-01 22:38:14
● 2026-04-02 03:12:44
○ 2026-04-02 10:50:38
○ 2026-04-02 23:38:10
● 2026-04-03 01:16:28
○ 2026-04-03 03:32:38
○ 2026-04-04 16:08:46

○A2603:1061:14:92::12026-04-01 → 2026-04-02 · 7 obs

○ 2026-04-01 00:57:12
● 2026-04-01 06:55:40
○ 2026-04-01 07:51:36
○ 2026-04-02 03:12:44
● 2026-04-02 10:50:38
○ 2026-04-02 18:31:16
○ 2026-04-04 16:08:46

○A2603:1061:14:93::12026-04-01 → 2026-04-01 · 4 obs

○ 2026-04-01 12:30:10
● 2026-04-01 13:42:50
○ 2026-04-01 22:38:14
○ 2026-04-04 16:08:46

○A2603:1061:14:94::12026-04-02 → 2026-04-03 · 7 obs

○ 2026-04-02 10:50:38
● 2026-04-02 18:31:16
○ 2026-04-02 21:52:42
○ 2026-04-03 03:32:38
● 2026-04-03 12:32:58
○ 2026-04-03 20:04:32
○ 2026-04-04 16:08:46

○A2620:1ec:29:1::452026-04-01 → 2026-04-02 · 7 obs

○ 2026-03-31 22:48:14
● 2026-04-01 00:57:12
○ 2026-04-01 06:55:40
○ 2026-04-02 21:52:42
● 2026-04-02 23:38:10
○ 2026-04-03 01:16:28
○ 2026-04-04 16:08:46

○A2620:1ec:29:1::672026-04-03 → 2026-04-04 · 5 obs

○ 2026-04-03 20:04:32
● 2026-04-03 21:41:40
● 2026-04-04 00:10:44
○ 2026-04-04 01:44:32
○ 2026-04-04 16:08:46

○A2620:1ec:29:1::692026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 18:31:16
● 2026-04-02 21:52:42
○ 2026-04-02 23:38:10
○ 2026-04-04 16:08:46

●A2620:1ec:46::402026-04-01 → 2026-04-04 · 8 obs

○ 2026-04-01 07:51:36
● 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
○ 2026-04-04 03:11:50
● 2026-04-04 05:19:22
○ 2026-04-04 09:22:58
○ 2026-04-04 14:02:20
● 2026-04-04 16:08:46

○A2620:1ec:46::692026-03-31 → 2026-04-04 · 20 obs

● 2026-03-31 22:48:14
○ 2026-04-01 00:57:12
○ 2026-04-01 06:55:40
● 2026-04-01 07:51:36
○ 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
● 2026-04-01 12:30:10
○ 2026-04-01 13:42:50
● 2026-04-01 22:38:14
○ 2026-04-02 03:12:44
○ 2026-04-03 12:32:58
● 2026-04-03 20:04:32
○ 2026-04-03 21:41:40
○ 2026-04-04 00:10:44
● 2026-04-04 01:44:32
● 2026-04-04 03:11:50
○ 2026-04-04 05:19:22
● 2026-04-04 09:22:58
● 2026-04-04 14:02:20
○ 2026-04-04 16:08:46

○A2620:1ec:48:1::452026-04-01 → 2026-04-02 · 7 obs

○ 2026-03-31 22:48:14
● 2026-04-01 00:57:12
○ 2026-04-01 06:55:40
○ 2026-04-02 21:52:42
● 2026-04-02 23:38:10
○ 2026-04-03 01:16:28
○ 2026-04-04 16:08:46

○A2620:1ec:48:1::672026-04-03 → 2026-04-04 · 5 obs

○ 2026-04-03 20:04:32
● 2026-04-03 21:41:40
● 2026-04-04 00:10:44
○ 2026-04-04 01:44:32
○ 2026-04-04 16:08:46

○A2620:1ec:48:1::692026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 18:31:16
● 2026-04-02 21:52:42
○ 2026-04-02 23:38:10
○ 2026-04-04 16:08:46

●A2620:1ec:bdf::402026-04-01 → 2026-04-04 · 8 obs

○ 2026-04-01 07:51:36
● 2026-04-01 08:44:58
○ 2026-04-01 10:55:22
○ 2026-04-04 03:11:50
● 2026-04-04 05:19:22
○ 2026-04-04 09:22:58
○ 2026-04-04 14:02:20
● 2026-04-04 16:08:46

○A2620:1ec:bdf::692026-03-31 → 2026-04-04 · 20 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
classroom200.org	bob.ns.cloudflare.com, mira.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.204

NS records: bob.ns.cloudflare.com, mira.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classroom200.org (unsigned zone)

⏱️ Timing

Total: 280ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.107.213.40, 13.107.246.40`
AAAA	2	`2620:1ec:bdf::40, 2620:1ec:46::40`
NS	2	`bob.ns.cloudflare.com, mira.ns.cloudflare.com`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

classroom200.org resolves to four IP numbers: 2620:1ec:46::40, 2620:1ec:bdf::40, 13.107.213.40 and 13.107.246.40.

Other host names such as explorelearning.co.uk, barcoinnovationcenter.com, limeglass.net, puntoticket.cl and hpbhaydite.com share IPs with classroom200.org.

Name Servers

classroom200.org is delegated to two name servers: bob.ns.cloudflare.com and mira.ns.cloudflare.com.

classroom200.org shares the same name server setup as zamoranopropiedades.com.ar, rationalrants.com, suenos.guru, isaia.com.ar and antolog.net.

classroom200.org at least partially shares name servers with other domains, for instance leclubavantages.com, blocket-onlinebetalning22820.click, nmcconsulting.ca, sampetch.com and meublesdancause.com.

Host names with six IP numbers:

bob.ns.cloudflare.com points to 2606:4700:58::adf5:3b68, 2803:f800:50::6ca2:c168, 2a06:98c1:50::ac40:2168, 108.162.193.104, 172.64.33.104 and 173.245.59.104.

mira.ns.cloudflare.com points to 2606:4700:50::adf5:3acc, 2803:f800:50::6ca2:c0cc, 2a06:98c1:50::ac40:20cc, 108.162.192.204, 172.64.32.204 and 173.245.58.204.

classroom200.org - robtex.com