classprep.io - dns.ninja

`classprep.io`

DNSSEC	⚠️ Not signed
A	3.166.192.16^{🇺🇸 Amazon3.166.192.0/21}
		PTR	`server-3-166-192-16.phl51.r.cloudfront.net`
A	3.166.192.71^{🇺🇸 Amazon3.166.192.0/21}
A	3.166.192.74^{🇺🇸 Amazon3.166.192.0/21}
A	3.166.192.116^{🇺🇸 Amazon3.166.192.0/21}
NS	`ns-1354.awsdns-41.org` ⭐
		A	2600:9000:5305:4a00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1354.awsdns-41.org`
		A	205.251.197.74^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1354.awsdns-41.org`
NS	`ns-1992.awsdns-57.co.uk`
		A	2600:9000:5307:c800::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1992.awsdns-57.co.uk`
		A	205.251.199.200^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1992.awsdns-57.co.uk`
NS	`ns-467.awsdns-58.com`
		A	2600:9000:5301:d300::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-467.awsdns-58.com`
		A	205.251.193.211^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-467.awsdns-58.com`
NS	`ns-724.awsdns-26.net`
		A	2600:9000:5302:d400::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-724.awsdns-26.net`
		A	205.251.194.212^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-724.awsdns-26.net`
SOA	`ns-1354.awsdns-41.org`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1785417309

Same first word

classprep.net

classprep.io

Similar names

sparesplc.com

prepclass.com.ng

plcspares.com

DNS History

72 records (8 active, 64 former)

●NSns-1354.awsdns-41.org2026-02-18 → 2026-07-30 · 2 obs

● 2026-02-18 20:10:32
● 2026-07-30 13:39:38

●NSns-1992.awsdns-57.co.uk2026-02-18 → 2026-07-30 · 2 obs

● 2026-02-18 20:10:32
● 2026-07-30 13:39:38

●NSns-467.awsdns-58.com2026-02-18 → 2026-07-30 · 2 obs

● 2026-02-18 20:10:32
● 2026-07-30 13:39:38

●NSns-724.awsdns-26.net2026-02-18 → 2026-07-30 · 2 obs

● 2026-02-18 20:10:32
● 2026-07-30 13:39:38

○A13.249.141.442026-05-19 → 2026-07-02 · 24 obs

○ 2026-05-19 05:38:24
● 2026-05-19 10:53:48
● 2026-05-19 12:36:06
○ 2026-05-19 15:50:58
● 2026-05-19 16:29:30
● 2026-05-26 01:43:36
○ 2026-05-26 08:43:56
● 2026-05-26 20:32:24
● 2026-05-29 03:29:48
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● 2026-05-31 09:16:30
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● 2026-07-02 01:43:34
○ 2026-07-02 04:11:38
○ 2026-07-30 13:39:38

○A13.249.141.462026-05-19 → 2026-07-02 · 24 obs

○A13.249.141.62026-05-19 → 2026-07-02 · 24 obs

○A13.249.141.732026-05-19 → 2026-07-02 · 24 obs

○A13.33.109.1082026-04-24 → 2026-05-25 · 22 obs

○ 2026-04-17 12:42:16
● 2026-04-24 03:48:40
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● 2026-05-25 19:32:44
○ 2026-05-25 20:12:20
○ 2026-07-30 13:39:38

○A13.33.109.1272026-04-24 → 2026-05-25 · 22 obs

○A13.33.109.342026-04-24 → 2026-05-25 · 22 obs

○A13.33.109.582026-04-24 → 2026-05-25 · 22 obs

○A13.33.82.1102026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-05 22:12:44
● 2026-05-07 14:01:14
○ 2026-05-07 17:55:44
○ 2026-07-30 13:39:38

○A13.33.82.152026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-05 22:12:44
● 2026-05-07 14:01:14
○ 2026-05-07 17:55:44
○ 2026-07-30 13:39:38

○A13.33.82.692026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-05 22:12:44
● 2026-05-07 14:01:14
○ 2026-05-07 17:55:44
○ 2026-07-30 13:39:38

○A13.33.82.822026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-05 22:12:44
● 2026-05-07 14:01:14
○ 2026-05-07 17:55:44
○ 2026-07-30 13:39:38

○A18.160.78.22026-04-02 → 2026-07-26 · 24 obs

○ 2026-04-01 15:41:28
● 2026-04-02 11:48:56
○ 2026-04-02 17:37:52
○ 2026-04-05 02:17:40
● 2026-04-05 09:35:42
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○ 2026-05-22 18:05:36
● 2026-06-19 15:32:56
○ 2026-06-19 21:39:20
● 2026-06-22 20:55:20
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● 2026-06-24 07:07:14
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● 2026-06-25 19:56:50
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● 2026-06-27 13:26:42
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● 2026-07-01 19:00:34
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● 2026-07-26 21:53:16
○ 2026-07-27 02:14:16
○ 2026-07-30 13:39:38

○A18.160.78.252026-04-02 → 2026-07-26 · 24 obs

○A18.160.78.312026-04-02 → 2026-07-26 · 24 obs

○A18.160.78.632026-04-02 → 2026-07-26 · 24 obs

○A18.165.122.1212026-03-24 → 2026-07-19 · 24 obs

○ 2026-03-23 01:06:50
● 2026-03-24 17:53:46
○ 2026-03-24 18:35:10
○ 2026-03-24 23:58:56
● 2026-03-25 04:31:32
○ 2026-03-25 18:35:38
● 2026-07-11 13:16:30
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● 2026-07-12 06:26:36
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○ 2026-07-19 11:38:12
○ 2026-07-30 13:39:38

○A18.165.122.222026-03-24 → 2026-07-19 · 24 obs

○A18.165.122.62026-03-24 → 2026-07-19 · 24 obs

○A18.165.122.642026-03-24 → 2026-07-19 · 24 obs

○A3.162.3.1002026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 17:55:44
● 2026-05-07 22:23:32
○ 2026-05-07 23:39:16
○ 2026-07-30 13:39:38

○A3.162.3.1042026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 17:55:44
● 2026-05-07 22:23:32
○ 2026-05-07 23:39:16
○ 2026-07-30 13:39:38

○A3.162.3.1242026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 17:55:44
● 2026-05-07 22:23:32
○ 2026-05-07 23:39:16
○ 2026-07-30 13:39:38

○A3.162.3.732026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 17:55:44
● 2026-05-07 22:23:32
○ 2026-05-07 23:39:16
○ 2026-07-30 13:39:38

○A3.163.83.1042026-04-01 → 2026-07-30 · 26 obs

○ 2026-03-30 11:37:34
● 2026-04-01 00:15:16
○ 2026-04-01 15:41:28
○ 2026-04-03 00:17:22
● 2026-04-04 12:27:24
● 2026-04-04 19:04:26
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○ 2026-04-05 11:37:38
● 2026-04-06 02:32:00
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● 2026-05-05 10:32:06
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○ 2026-05-22 20:02:54
● 2026-07-02 04:11:38
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● 2026-07-28 09:31:50
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● 2026-07-29 00:50:44
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● 2026-07-29 06:57:32
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● 2026-07-30 09:23:48
○ 2026-07-30 13:39:36
○ 2026-07-30 13:39:38

○A3.163.83.1102026-04-01 → 2026-07-30 · 26 obs

○A3.163.83.222026-04-01 → 2026-07-30 · 26 obs

○A3.163.83.92026-04-01 → 2026-07-30 · 26 obs

●A3.166.192.1162026-07-12 → 2026-07-30 · 26 obs

○ 2026-07-12 13:56:48
● 2026-07-12 20:40:46
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● 2026-07-13 05:07:48
○ 2026-07-13 09:58:04
○ 2026-07-15 10:25:20
● 2026-07-15 23:26:28
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● 2026-07-24 23:55:22
○ 2026-07-25 14:16:16
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● 2026-07-29 05:50:02
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● 2026-07-30 13:39:36
● 2026-07-30 13:39:38

●A3.166.192.162026-07-12 → 2026-07-30 · 26 obs

●A3.166.192.712026-07-12 → 2026-07-30 · 26 obs

●A3.166.192.742026-07-12 → 2026-07-30 · 26 obs

○A3.168.73.282026-03-22 → 2026-05-19 · 24 obs

○ 2026-03-20 10:15:38
● 2026-03-22 16:21:02
○ 2026-03-23 01:06:50
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● 2026-03-30 00:44:28
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○ 2026-04-16 08:56:36
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○ 2026-05-19 16:29:30
● 2026-05-19 18:12:02
○ 2026-05-19 22:30:38
● 2026-05-19 23:09:18
○ 2026-05-20 01:07:30
○ 2026-07-30 13:39:38

○A3.168.73.342026-03-22 → 2026-05-19 · 24 obs

○A3.168.73.62026-03-22 → 2026-05-19 · 24 obs

○A3.168.73.72026-03-22 → 2026-05-19 · 24 obs

○A3.171.22.1282026-05-20 → 2026-05-20 · 4 obs

○ 2026-05-20 01:07:30
● 2026-05-20 09:12:28
○ 2026-05-20 10:09:20
○ 2026-07-30 13:39:38

○A3.171.22.512026-05-20 → 2026-05-20 · 4 obs

○ 2026-05-20 01:07:30
● 2026-05-20 09:12:28
○ 2026-05-20 10:09:20
○ 2026-07-30 13:39:38

○A3.171.22.522026-05-20 → 2026-05-20 · 4 obs

○ 2026-05-20 01:07:30
● 2026-05-20 09:12:28
○ 2026-05-20 10:09:20
○ 2026-07-30 13:39:38

○A3.171.22.812026-05-20 → 2026-05-20 · 4 obs

○ 2026-05-20 01:07:30
● 2026-05-20 09:12:28
○ 2026-05-20 10:09:20
○ 2026-07-30 13:39:38

○A3.171.76.1032026-02-23 → 2026-07-12 · 24 obs

○ 2026-02-19 10:12:22
● 2026-02-23 14:01:10
● 2026-02-23 16:53:26
○ 2026-02-23 19:51:16
● 2026-02-24 01:01:32
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● 2026-03-20 10:15:38
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● 2026-06-23 16:51:34
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● 2026-06-30 04:39:42
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● 2026-07-07 23:48:02
● 2026-07-11 23:41:28
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● 2026-07-12 12:39:04
○ 2026-07-12 13:56:48
○ 2026-07-30 13:39:38

○A3.171.76.432026-02-23 → 2026-07-12 · 24 obs

○A3.171.76.542026-02-23 → 2026-07-12 · 24 obs

○A3.171.76.562026-02-23 → 2026-07-12 · 24 obs

○A52.222.177.1142026-02-18 → 2026-06-30 · 23 obs

● 2026-02-18 20:10:32
● 2026-02-18 22:58:16
○ 2026-02-19 06:03:36
● 2026-02-19 10:12:22
● 2026-03-03 22:51:02
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● 2026-04-01 15:41:28
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○A52.222.177.122026-02-18 → 2026-06-30 · 23 obs

○A52.222.177.182026-02-18 → 2026-06-30 · 23 obs

○A52.222.177.522026-02-18 → 2026-06-30 · 23 obs

○A52.84.174.422026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 02:14:16
● 2026-07-27 06:50:14
○ 2026-07-27 10:50:18
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○ 2026-07-30 13:39:38

○A52.84.174.702026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 02:14:16
● 2026-07-27 06:50:14
○ 2026-07-27 10:50:18
● 2026-07-27 15:55:24
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○ 2026-07-30 13:39:38

○A52.84.174.772026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 02:14:16
● 2026-07-27 06:50:14
○ 2026-07-27 10:50:18
● 2026-07-27 15:55:24
○ 2026-07-28 01:01:46
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○ 2026-07-28 21:56:52
○ 2026-07-30 13:39:38

○A52.84.174.942026-07-27 → 2026-07-28 · 8 obs

○ 2026-07-27 02:14:16
● 2026-07-27 06:50:14
○ 2026-07-27 10:50:18
● 2026-07-27 15:55:24
○ 2026-07-28 01:01:46
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○ 2026-07-28 21:56:52
○ 2026-07-30 13:39:38

○A52.85.78.202026-03-28 → 2026-07-28 · 22 obs

○ 2026-03-25 18:35:38
● 2026-03-28 11:39:08
○ 2026-03-28 12:36:06
● 2026-03-28 15:02:22
○ 2026-03-28 18:23:10
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● 2026-07-09 02:19:06
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● 2026-07-11 14:15:02
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● 2026-07-28 01:01:46
○ 2026-07-28 09:31:50
○ 2026-07-30 13:39:38

○A52.85.78.392026-03-28 → 2026-07-28 · 22 obs

○A52.85.78.442026-03-28 → 2026-07-28 · 22 obs

○A52.85.78.72026-03-28 → 2026-07-28 · 22 obs

○A54.192.151.1012026-05-27 → 2026-06-04 · 22 obs

○ 2026-05-26 20:32:24
● 2026-05-27 14:55:48
○ 2026-05-27 23:05:40
○ 2026-05-28 05:06:18
● 2026-05-28 07:35:32
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● 2026-05-30 14:56:30
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● 2026-06-04 04:44:46
○ 2026-06-04 05:20:54
○ 2026-07-30 13:39:38

○A54.192.151.122026-05-27 → 2026-06-04 · 22 obs

○A54.192.151.662026-05-27 → 2026-06-04 · 22 obs

○A54.192.151.782026-05-27 → 2026-06-04 · 22 obs

○A65.8.20.22026-07-22 → 2026-07-22 · 4 obs

○ 2026-07-22 09:44:48
● 2026-07-22 13:54:40
○ 2026-07-23 03:07:22
○ 2026-07-30 13:39:38

○A65.8.20.42026-07-22 → 2026-07-22 · 4 obs

○ 2026-07-22 09:44:48
● 2026-07-22 13:54:40
○ 2026-07-23 03:07:22
○ 2026-07-30 13:39:38

○A65.8.20.632026-07-22 → 2026-07-22 · 4 obs

○ 2026-07-22 09:44:48
● 2026-07-22 13:54:40
○ 2026-07-23 03:07:22
○ 2026-07-30 13:39:38

○A65.8.20.902026-07-22 → 2026-07-22 · 4 obs

○ 2026-07-22 09:44:48
● 2026-07-22 13:54:40
○ 2026-07-23 03:07:22
○ 2026-07-30 13:39:38

○A99.84.215.22026-02-19 → 2026-07-30 · 23 obs

○ 2026-02-18 20:10:32
○ 2026-02-18 22:58:16
● 2026-02-19 06:03:36
○ 2026-02-19 10:12:22
○ 2026-03-19 01:45:14
● 2026-03-19 15:47:56
○ 2026-03-20 10:15:38
● 2026-07-07 13:42:52
○ 2026-07-07 20:24:16
● 2026-07-09 01:11:52
○ 2026-07-09 02:19:06
● 2026-07-10 22:37:30
○ 2026-07-11 04:02:52
● 2026-07-18 03:41:26
○ 2026-07-18 06:14:48
● 2026-07-22 09:44:48
● 2026-07-23 13:09:54
○ 2026-07-24 04:15:44
● 2026-07-28 23:52:28
○ 2026-07-29 00:50:44
● 2026-07-30 04:11:54
○ 2026-07-30 05:12:42
○ 2026-07-30 13:39:38

○A99.84.215.202026-02-19 → 2026-07-30 · 23 obs

○A99.84.215.492026-02-19 → 2026-07-30 · 23 obs

○A99.84.215.592026-02-19 → 2026-07-30 · 23 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
classprep.io	ns-1354.awsdns-41.org, ns-1992.awsdns-57.co.uk, ns-467.awsdns-58.com, ns-724.awsdns-26.net	-

✅ Authoritative Response

Server:205.251.199.200

NS records: ns-1354.awsdns-41.org, ns-1992.awsdns-57.co.uk, ns-467.awsdns-58.com, ns-724.awsdns-26.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classprep.io (unsigned zone)

⏱️ Timing

Total: 558ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.166.192.74, 3.166.192.16...`
NS	4	`ns-1354.awsdns-41.org, ns-1992.awsdns-57.co.uk...`
SOA	1	`ns-1354.awsdns-41.org awsdns-hostmaster.`

Analysis

IP Addresses

classprep.io resolves to four IP addresses: 3.166.192.16, 3.166.192.71, 3.166.192.74 and 3.166.192.116.

Among the host names that share IP numbers with classprep.io are www.1dcarriers.com, d2douavu7yc1hc.cloudfront.net, www.esscert.com and two others.

Name Servers

The domain classprep.io is delegated to these four name servers: ns-467.awsdns-58.com, ns-724.awsdns-26.net, ns-1354.awsdns-41.org and ns-1992.awsdns-57.co.uk.

classprep.io shares at least some of its name servers with other domains, including noticiascaracol.com.co, ef3180684-frontier.amazon.com, vfgra.com and two others.

These name servers are frequently seen alongside ns-924.awsdns-51.net, ns-1963.awsdns-53.co.uk, ns-238.awsdns-29.com and 4 other name servers.

The host names ns-467.awsdns-58.com, ns-724.awsdns-26.net, ns-1354.awsdns-41.org and ns-1992.awsdns-57.co.uk each resolve to two IP addresses: ns-467.awsdns-58.com resolves to 205.251.193.211 and 2600:9000:5301:d300::1; ns-724.awsdns-26.net resolves to 205.251.194.212 and 2600:9000:5302:d400::1; ns-1354.awsdns-41.org resolves to 205.251.197.74 and 2600:9000:5305:4a00::1; ns-1992.awsdns-57.co.uk resolves to 205.251.199.200 and 2600:9000:5307:c800::1.