openclassboard.com - dns.ninja

`openclassboard.com`

DNSSEC	⚠️ Not signed
A	3.171.100.8^{🇺🇸 Amazon3.171.100.0/22}
		PTR	`server-3-171-100-8.iad12.r.cloudfront.net`
A	3.171.100.18^{🇺🇸 Amazon3.171.100.0/22}
A	3.171.100.26^{🇺🇸 Amazon3.171.100.0/22}
A	3.171.100.119^{🇺🇸 Amazon3.171.100.0/22}
NS	`ns-349.awsdns-43.com` ⭐
		A	2600:9000:5301:5d00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-349.awsdns-43.com`
		A	205.251.193.93^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-349.awsdns-43.com`
NS	`ns-1239.awsdns-26.org`
		A	2600:9000:5304:d700::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1239.awsdns-26.org`
		A	205.251.196.215^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1239.awsdns-26.org`
NS	`ns-1682.awsdns-18.co.uk`
		A	2600:9000:5306:9200::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1682.awsdns-18.co.uk`
		A	205.251.198.146^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1682.awsdns-18.co.uk`
NS	`ns-649.awsdns-17.net`
		A	2600:9000:5302:8900::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-649.awsdns-17.net`
		A	205.251.194.137^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-649.awsdns-17.net`
SOA	`ns-349.awsdns-43.com`awsdns-hostmaster@amazon.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=1782210290

Same first word

openclassboard.com

Similar names

bradescoplanos.com.br

DNS History

72 records (8 active, 64 former)

●NSns-1239.awsdns-26.org2026-02-16 → 2026-06-23 · 2 obs

● 2026-02-16 22:05:00
● 2026-06-23 10:47:54

●NSns-1682.awsdns-18.co.uk2026-02-16 → 2026-06-23 · 2 obs

● 2026-02-16 22:05:00
● 2026-06-23 10:47:54

●NSns-349.awsdns-43.com2026-02-16 → 2026-06-23 · 2 obs

● 2026-02-16 22:05:00
● 2026-06-23 10:47:54

●NSns-649.awsdns-17.net2026-02-16 → 2026-06-23 · 2 obs

● 2026-02-16 22:05:00
● 2026-06-23 10:47:54

○A108.158.186.1092026-04-09 → 2026-06-16 · 24 obs

○ 2026-04-08 04:18:06
● 2026-04-09 02:12:58
○ 2026-04-09 12:02:42
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● 2026-05-02 18:20:32
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○ 2026-06-23 10:47:54

○A108.158.186.112026-04-09 → 2026-06-16 · 24 obs

○A108.158.186.182026-04-09 → 2026-06-16 · 24 obs

○A108.158.186.742026-04-09 → 2026-06-16 · 24 obs

○A18.165.122.132026-03-23 → 2026-03-25 · 11 obs

○ 2026-03-22 17:37:26
● 2026-03-23 02:25:44
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● 2026-03-25 16:30:04
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○ 2026-06-23 10:47:54

○A18.165.122.342026-03-23 → 2026-03-25 · 11 obs

○A18.165.122.502026-03-23 → 2026-03-25 · 11 obs

○A18.165.122.982026-03-23 → 2026-03-25 · 11 obs

○A18.165.227.1022026-02-20 → 2026-04-22 · 23 obs

○ 2026-02-20 16:56:06
● 2026-02-20 19:26:22
● 2026-02-21 00:46:18
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○ 2026-02-28 22:27:06
● 2026-03-01 13:38:26
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● 2026-04-16 23:11:48
● 2026-04-19 16:01:28
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○ 2026-06-23 10:47:54

○A18.165.227.202026-02-20 → 2026-04-22 · 23 obs

○A18.165.227.332026-02-20 → 2026-04-22 · 23 obs

○A18.165.227.872026-02-20 → 2026-04-22 · 23 obs

○A18.173.166.1252026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-16 22:28:24
● 2026-06-17 13:34:48
● 2026-06-17 14:11:42
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○ 2026-06-23 10:47:54

○A18.173.166.252026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-16 22:28:24
● 2026-06-17 13:34:48
● 2026-06-17 14:11:42
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○ 2026-06-23 10:47:54

○A18.173.166.482026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-16 22:28:24
● 2026-06-17 13:34:48
● 2026-06-17 14:11:42
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○A18.173.166.802026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-16 22:28:24
● 2026-06-17 13:34:48
● 2026-06-17 14:11:42
○ 2026-06-17 15:31:20
○ 2026-06-23 10:47:54

○A18.238.96.102026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-12 00:02:32
● 2026-03-12 19:53:46
○ 2026-03-12 20:31:50
○ 2026-06-23 10:47:54

○A18.238.96.1142026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-12 00:02:32
● 2026-03-12 19:53:46
○ 2026-03-12 20:31:50
○ 2026-06-23 10:47:54

○A18.238.96.542026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-12 00:02:32
● 2026-03-12 19:53:46
○ 2026-03-12 20:31:50
○ 2026-06-23 10:47:54

○A18.238.96.702026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-12 00:02:32
● 2026-03-12 19:53:46
○ 2026-03-12 20:31:50
○ 2026-06-23 10:47:54

○A18.239.183.142026-04-27 → 2026-05-19 · 22 obs

○ 2026-04-26 12:49:36
● 2026-04-27 01:14:48
○ 2026-04-27 05:31:52
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● 2026-04-29 09:14:12
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○ 2026-05-07 19:38:56
● 2026-05-09 06:58:10
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● 2026-05-19 09:21:18
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○ 2026-06-23 10:47:54

○A18.239.183.342026-04-27 → 2026-05-19 · 22 obs

○A18.239.183.492026-04-27 → 2026-05-19 · 22 obs

○A18.239.183.722026-04-27 → 2026-05-19 · 22 obs

○A18.64.236.1052026-06-17 → 2026-06-19 · 6 obs

○ 2026-06-17 15:31:20
● 2026-06-17 18:19:22
○ 2026-06-18 17:48:46
● 2026-06-19 20:37:24
○ 2026-06-19 23:16:42
○ 2026-06-23 10:47:54

○A18.64.236.1062026-06-17 → 2026-06-19 · 6 obs

○ 2026-06-17 15:31:20
● 2026-06-17 18:19:22
○ 2026-06-18 17:48:46
● 2026-06-19 20:37:24
○ 2026-06-19 23:16:42
○ 2026-06-23 10:47:54

○A18.64.236.292026-06-17 → 2026-06-19 · 6 obs

○ 2026-06-17 15:31:20
● 2026-06-17 18:19:22
○ 2026-06-18 17:48:46
● 2026-06-19 20:37:24
○ 2026-06-19 23:16:42
○ 2026-06-23 10:47:54

○A18.64.236.792026-06-17 → 2026-06-19 · 6 obs

○ 2026-06-17 15:31:20
● 2026-06-17 18:19:22
○ 2026-06-18 17:48:46
● 2026-06-19 20:37:24
○ 2026-06-19 23:16:42
○ 2026-06-23 10:47:54

○A18.65.25.1042026-02-19 → 2026-03-20 · 24 obs

○ 2026-02-18 11:44:42
● 2026-02-19 06:02:36
● 2026-02-20 05:30:02
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● 2026-02-20 16:56:06
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○A18.65.25.1112026-02-19 → 2026-03-20 · 24 obs

○A18.65.25.32026-02-19 → 2026-03-20 · 24 obs

○A18.65.25.902026-02-19 → 2026-03-20 · 24 obs

○A18.67.145.1122026-03-28 → 2026-06-09 · 23 obs

○ 2026-03-26 04:04:38
● 2026-03-28 15:58:32
● 2026-03-29 19:14:58
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○ 2026-06-23 10:47:54

○A18.67.145.1182026-03-28 → 2026-06-09 · 23 obs

○A18.67.145.562026-03-28 → 2026-06-09 · 23 obs

○A18.67.145.992026-03-28 → 2026-06-09 · 23 obs

○A3.168.40.442026-05-20 → 2026-06-08 · 22 obs

○ 2026-05-19 22:58:46
● 2026-05-20 08:10:32
● 2026-05-20 17:28:04
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● 2026-05-30 19:16:28
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● 2026-06-08 02:26:44
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○ 2026-06-23 10:47:54

○A3.168.40.482026-05-20 → 2026-06-08 · 22 obs

○A3.168.40.612026-05-20 → 2026-06-08 · 22 obs

○A3.168.40.812026-05-20 → 2026-06-08 · 22 obs

○A3.170.42.342026-02-18 → 2026-06-11 · 16 obs

○ 2026-02-17 03:28:06
● 2026-02-18 05:45:42
○ 2026-02-18 11:44:42
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● 2026-03-11 07:19:28
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● 2026-06-11 09:34:26
○ 2026-06-11 15:59:00
○ 2026-06-23 10:47:54

○A3.170.42.402026-02-18 → 2026-06-11 · 16 obs

○A3.170.42.572026-02-18 → 2026-06-11 · 16 obs

○A3.170.42.652026-02-18 → 2026-06-11 · 16 obs

●A3.171.100.1192026-02-16 → 2026-06-23 · 25 obs

● 2026-02-16 22:05:00
● 2026-02-17 03:28:06
○ 2026-02-18 05:45:42
● 2026-02-18 11:44:42
○ 2026-02-19 06:02:36
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● 2026-06-23 10:47:54

●A3.171.100.182026-02-16 → 2026-06-23 · 25 obs

●A3.171.100.262026-02-16 → 2026-06-23 · 25 obs

●A3.171.100.82026-02-16 → 2026-06-23 · 25 obs

○A3.174.193.1032026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-06 07:57:42
● 2026-03-09 06:23:20
○ 2026-03-10 00:34:32
○ 2026-06-23 10:47:54

○A3.174.193.1132026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-06 07:57:42
● 2026-03-09 06:23:20
○ 2026-03-10 00:34:32
○ 2026-06-23 10:47:54

○A3.174.193.1152026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-06 07:57:42
● 2026-03-09 06:23:20
○ 2026-03-10 00:34:32
○ 2026-06-23 10:47:54

○A3.174.193.962026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-06 07:57:42
● 2026-03-09 06:23:20
○ 2026-03-10 00:34:32
○ 2026-06-23 10:47:54

○A3.174.29.1082026-04-09 → 2026-04-20 · 12 obs

○ 2026-04-09 12:02:42
● 2026-04-09 16:23:00
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● 2026-04-15 15:18:24
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● 2026-04-20 03:35:02
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○ 2026-06-23 10:47:54

○A3.174.29.1102026-04-09 → 2026-04-20 · 12 obs

○A3.174.29.1132026-04-09 → 2026-04-20 · 12 obs

○A3.174.29.912026-04-09 → 2026-04-20 · 12 obs

○A52.85.31.1002026-03-14 → 2026-03-22 · 7 obs

○ 2026-03-12 20:31:50
● 2026-03-14 15:08:28
○ 2026-03-14 19:50:32
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● 2026-03-22 17:37:26
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○A52.85.31.1132026-03-14 → 2026-03-22 · 7 obs

○ 2026-03-12 20:31:50
● 2026-03-14 15:08:28
○ 2026-03-14 19:50:32
○ 2026-03-22 06:03:14
● 2026-03-22 17:37:26
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○A52.85.31.252026-03-14 → 2026-03-22 · 7 obs

○ 2026-03-12 20:31:50
● 2026-03-14 15:08:28
○ 2026-03-14 19:50:32
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● 2026-03-22 17:37:26
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○A52.85.31.282026-03-14 → 2026-03-22 · 7 obs

○ 2026-03-12 20:31:50
● 2026-03-14 15:08:28
○ 2026-03-14 19:50:32
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● 2026-03-22 17:37:26
○ 2026-03-23 02:25:44
○ 2026-06-23 10:47:54

○A54.192.151.1032026-05-30 → 2026-06-03 · 7 obs

○ 2026-05-29 16:05:04
● 2026-05-30 12:02:36
○ 2026-05-30 19:16:28
○ 2026-06-02 13:56:04
● 2026-06-03 00:34:10
○ 2026-06-03 01:19:06
○ 2026-06-23 10:47:54

○A54.192.151.352026-05-30 → 2026-06-03 · 7 obs

○ 2026-05-29 16:05:04
● 2026-05-30 12:02:36
○ 2026-05-30 19:16:28
○ 2026-06-02 13:56:04
● 2026-06-03 00:34:10
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○A54.192.151.662026-05-30 → 2026-06-03 · 7 obs

○ 2026-05-29 16:05:04
● 2026-05-30 12:02:36
○ 2026-05-30 19:16:28
○ 2026-06-02 13:56:04
● 2026-06-03 00:34:10
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○ 2026-06-23 10:47:54

○A54.192.151.872026-05-30 → 2026-06-03 · 7 obs

○ 2026-05-29 16:05:04
● 2026-05-30 12:02:36
○ 2026-05-30 19:16:28
○ 2026-06-02 13:56:04
● 2026-06-03 00:34:10
○ 2026-06-03 01:19:06
○ 2026-06-23 10:47:54

○A99.86.12.1072026-04-23 → 2026-06-22 · 27 obs

○ 2026-04-22 03:31:40
● 2026-04-23 20:11:32
● 2026-04-26 12:49:36
○ 2026-04-27 01:14:48
● 2026-04-27 05:31:52
● 2026-05-07 09:59:46
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● 2026-05-10 04:26:58
● 2026-05-17 22:04:40
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○ 2026-06-08 02:26:44
● 2026-06-08 18:12:24
○ 2026-06-09 17:07:22
● 2026-06-10 19:19:58
● 2026-06-15 13:46:32
○ 2026-06-16 04:42:08
○ 2026-06-17 18:19:22
● 2026-06-18 17:48:46
○ 2026-06-19 20:37:24
● 2026-06-19 23:16:42
○ 2026-06-20 01:33:30
● 2026-06-20 05:13:08
○ 2026-06-22 00:04:00
● 2026-06-22 01:07:46
○ 2026-06-23 02:17:48
○ 2026-06-23 10:47:54

○A99.86.12.182026-04-23 → 2026-06-22 · 27 obs

○A99.86.12.592026-04-23 → 2026-06-22 · 27 obs

○A99.86.12.712026-04-23 → 2026-06-22 · 27 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
openclassboard.com	ns-649.awsdns-17.net, ns-349.awsdns-43.com, ns-1682.awsdns-18.co.uk, ns-1239.awsdns-26.org	2 records

✅ Authoritative Response

Server:205.251.196.215

NS records: ns-649.awsdns-17.net, ns-349.awsdns-43.com, ns-1682.awsdns-18.co.uk, ns-1239.awsdns-26.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openclassboard.com (unsigned zone)

⏱️ Timing

Total: 491ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.100.8, 3.171.100.26...`
NS	4	`ns-1239.awsdns-26.org, ns-1682.awsdns-18.co.uk...`
SOA	1	`ns-349.awsdns-43.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-349.awsdns-43.com, ns-349.awsdns-43.com)

Analysis

IP Addresses

openclassboard.com resolves to four IP addresses: 3.171.100.8, 3.171.100.18, 3.171.100.26 and 3.171.100.119.

Among the host names that share IP numbers with openclassboard.com are www-visaconciergecemea-com-cdn.production.tensrv.com, www.californiaaccidentattorneysblog.com, naswg.com and two others.

Name Servers

The domain openclassboard.com is delegated to these four name servers: ns-349.awsdns-43.com, ns-649.awsdns-17.net, ns-1239.awsdns-26.org and ns-1682.awsdns-18.co.uk.

openclassboard.com shares at least some of its name servers with other domains, including d1llh5bkrtc83k.cloudfront.net, nodeinfravalidators.com, manabot.com and two others.

These name servers are frequently paired with the name servers ns-219.awsdns-27.com, ns-706.awsdns-24.net and ns-1312.awsdns-36.org.

The host names ns-349.awsdns-43.com, ns-649.awsdns-17.net, ns-1239.awsdns-26.org and ns-1682.awsdns-18.co.uk each resolve to two IP addresses: ns-349.awsdns-43.com resolves to 205.251.193.93 and 2600:9000:5301:5d00::1; ns-649.awsdns-17.net resolves to 205.251.194.137 and 2600:9000:5302:8900::1; ns-1239.awsdns-26.org resolves to 205.251.196.215 and 2600:9000:5304:d700::1; ns-1682.awsdns-18.co.uk resolves to 205.251.198.146 and 2600:9000:5306:9200::1.