cdn.7knowledge.com - dns.ninja

`cdn.7knowledge.com`

DNSSEC	⚠️ Not signed
A	3.171.38.67^{🇺🇸 Amazon3.171.36.0/22}
		PTR	`server-3-171-38-67.iad61.r.cloudfront.net`
A	3.171.38.75^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.80^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.93^{🇺🇸 Amazon3.171.36.0/22}

`7knowledge.com`

	DNSSEC	⚠️ Not signed
	A	183.181.94.194^{🇯🇵 XSERVER-AS183.181.94.0/24 XSERVER Inc.}
	NS	`ns-167.awsdns-20.com` ⭐
	NS	`ns-1276.awsdns-31.org`
	NS	`ns-2038.awsdns-62.co.uk`
	NS	`ns-640.awsdns-16.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
	MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
	MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
	MX	`aspmx4.googlemail.com`⁽⁶⁰⁾
	MX	`aspmx5.googlemail.com`⁽⁷⁰⁾
	TXT	`v=spf1 +a:b26.coreserver.jp include:_spf.google.com a:mail.7knowledge.com a:m...`
	SOA	`ns-167.awsdns-20.com`awsdns-hostmaster@amazon.com serial=1

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DNS History

108 records (4 active, 104 former)

○A108.139.134.1152026-04-08 → 2026-06-08 · 17 obs

○ 2026-04-02 00:51:42
● 2026-04-08 05:12:04
● 2026-04-08 11:39:42
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○ 2026-06-08 09:09:50
○ 2026-08-04 03:00:08

○A108.139.134.1182026-04-08 → 2026-06-08 · 17 obs

○A108.139.134.312026-04-08 → 2026-06-08 · 17 obs

○A108.139.134.382026-04-08 → 2026-06-08 · 17 obs

○A108.139.95.1052026-04-15 → 2026-04-15 · 4 obs

○ 2026-04-14 02:28:02
● 2026-04-15 07:21:06
○ 2026-04-15 10:15:54
○ 2026-08-04 03:00:08

○A108.139.95.1282026-04-15 → 2026-04-15 · 4 obs

○ 2026-04-14 02:28:02
● 2026-04-15 07:21:06
○ 2026-04-15 10:15:54
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○A108.139.95.512026-04-15 → 2026-04-15 · 4 obs

○ 2026-04-14 02:28:02
● 2026-04-15 07:21:06
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○A108.139.95.872026-04-15 → 2026-04-15 · 4 obs

○ 2026-04-14 02:28:02
● 2026-04-15 07:21:06
○ 2026-04-15 10:15:54
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○A13.226.155.1182026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-17 00:21:10
● 2026-02-17 02:15:02
○ 2026-02-17 04:57:06
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○A13.226.155.232026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-17 00:21:10
● 2026-02-17 02:15:02
○ 2026-02-17 04:57:06
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○A13.226.155.822026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-17 00:21:10
● 2026-02-17 02:15:02
○ 2026-02-17 04:57:06
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○A13.226.155.882026-02-17 → 2026-02-17 · 4 obs

○ 2026-02-17 00:21:10
● 2026-02-17 02:15:02
○ 2026-02-17 04:57:06
○ 2026-08-04 03:00:08

○A13.249.180.1122026-07-28 → 2026-07-29 · 6 obs

○ 2026-07-27 18:04:36
● 2026-07-28 06:42:42
○ 2026-07-28 23:52:40
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○ 2026-07-30 01:34:34
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○A13.249.180.1132026-07-28 → 2026-07-29 · 6 obs

○ 2026-07-27 18:04:36
● 2026-07-28 06:42:42
○ 2026-07-28 23:52:40
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○ 2026-07-30 01:34:34
○ 2026-08-04 03:00:08

○A13.249.180.1262026-07-28 → 2026-07-29 · 6 obs

○ 2026-07-27 18:04:36
● 2026-07-28 06:42:42
○ 2026-07-28 23:52:40
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○ 2026-07-30 01:34:34
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○A13.249.180.72026-07-28 → 2026-07-29 · 6 obs

○ 2026-07-27 18:04:36
● 2026-07-28 06:42:42
○ 2026-07-28 23:52:40
● 2026-07-29 01:52:04
○ 2026-07-30 01:34:34
○ 2026-08-04 03:00:08

○A13.33.109.432026-04-30 → 2026-04-30 · 4 obs

○ 2026-04-26 00:12:54
● 2026-04-30 05:23:24
○ 2026-04-30 06:29:36
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○A13.33.109.552026-04-30 → 2026-04-30 · 4 obs

○ 2026-04-26 00:12:54
● 2026-04-30 05:23:24
○ 2026-04-30 06:29:36
○ 2026-08-04 03:00:08

○A13.33.109.712026-04-30 → 2026-04-30 · 4 obs

○ 2026-04-26 00:12:54
● 2026-04-30 05:23:24
○ 2026-04-30 06:29:36
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○A13.33.109.882026-04-30 → 2026-04-30 · 4 obs

○ 2026-04-26 00:12:54
● 2026-04-30 05:23:24
○ 2026-04-30 06:29:36
○ 2026-08-04 03:00:08

○A13.33.131.452026-07-23 → 2026-07-23 · 4 obs

○ 2026-07-22 19:59:12
● 2026-07-23 06:47:40
○ 2026-07-23 12:21:20
○ 2026-08-04 03:00:08

○A13.33.131.482026-07-23 → 2026-07-23 · 4 obs

○ 2026-07-22 19:59:12
● 2026-07-23 06:47:40
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○A13.33.131.622026-07-23 → 2026-07-23 · 4 obs

○ 2026-07-22 19:59:12
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○A13.33.131.862026-07-23 → 2026-07-23 · 4 obs

○ 2026-07-22 19:59:12
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○A13.33.235.402026-03-26 → 2026-07-16 · 18 obs

○ 2026-03-22 17:14:16
● 2026-03-26 05:02:58
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○A13.33.235.512026-03-26 → 2026-07-16 · 18 obs

○A13.33.235.592026-03-26 → 2026-07-16 · 18 obs

○A13.33.235.872026-03-26 → 2026-07-16 · 18 obs

○A143.204.204.1072026-05-19 → 2026-07-02 · 17 obs

○ 2026-05-19 05:38:00
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○A143.204.204.1092026-05-19 → 2026-07-02 · 17 obs

○A143.204.204.22026-05-19 → 2026-07-02 · 17 obs

○A143.204.204.802026-05-19 → 2026-07-02 · 17 obs

○A18.154.132.1112026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-17 22:23:46
● 2026-02-27 12:12:28
○ 2026-02-27 14:21:08
○ 2026-08-04 03:00:08

○A18.154.132.452026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-17 22:23:46
● 2026-02-27 12:12:28
○ 2026-02-27 14:21:08
○ 2026-08-04 03:00:08

○A18.154.132.52026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-17 22:23:46
● 2026-02-27 12:12:28
○ 2026-02-27 14:21:08
○ 2026-08-04 03:00:08

○A18.154.132.602026-02-27 → 2026-02-27 · 4 obs

○ 2026-02-17 22:23:46
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○ 2026-02-27 14:21:08
○ 2026-08-04 03:00:08

○A18.160.78.1102026-04-01 → 2026-07-30 · 18 obs

○ 2026-03-28 17:21:42
● 2026-04-01 08:21:40
○ 2026-04-01 15:30:20
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○ 2026-08-04 03:00:08

○A18.160.78.552026-04-01 → 2026-07-30 · 18 obs

○A18.160.78.592026-04-01 → 2026-07-30 · 18 obs

○A18.160.78.962026-04-01 → 2026-07-30 · 18 obs

○A18.161.205.142026-04-23 → 2026-07-27 · 18 obs

○ 2026-04-22 02:16:44
● 2026-04-23 09:06:34
○ 2026-04-23 12:07:14
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○ 2026-07-28 06:42:42
○ 2026-08-04 03:00:08

○A18.161.205.232026-04-23 → 2026-07-27 · 18 obs

○A18.161.205.352026-04-23 → 2026-07-27 · 18 obs

○A18.161.205.732026-04-23 → 2026-07-27 · 18 obs

○A18.164.96.1182026-03-07 → 2026-03-22 · 7 obs

○ 2026-02-27 14:21:08
● 2026-03-07 23:06:10
○ 2026-03-08 02:09:34
○ 2026-03-22 13:01:08
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○A18.164.96.272026-03-07 → 2026-03-22 · 7 obs

○ 2026-02-27 14:21:08
● 2026-03-07 23:06:10
○ 2026-03-08 02:09:34
○ 2026-03-22 13:01:08
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○ 2026-08-04 03:00:08

○A18.164.96.412026-03-07 → 2026-03-22 · 7 obs

○ 2026-02-27 14:21:08
● 2026-03-07 23:06:10
○ 2026-03-08 02:09:34
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○A18.164.96.892026-03-07 → 2026-03-22 · 7 obs

○ 2026-02-27 14:21:08
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○A18.238.4.132026-07-13 → 2026-08-01 · 18 obs

○ 2026-07-12 04:27:26
● 2026-07-13 14:08:08
○ 2026-07-13 16:42:12
● 2026-07-16 06:51:02
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○A18.238.4.422026-07-13 → 2026-08-01 · 18 obs

○A18.238.4.462026-07-13 → 2026-08-01 · 18 obs

○A18.238.4.992026-07-13 → 2026-08-01 · 18 obs

○A18.239.168.1292026-04-21 → 2026-08-02 · 17 obs

○ 2026-04-15 10:15:54
● 2026-04-21 16:42:26
○ 2026-04-21 18:23:40
● 2026-04-21 22:45:06
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○A18.239.168.232026-04-21 → 2026-08-02 · 17 obs

○A18.239.168.502026-04-21 → 2026-08-02 · 17 obs

○A18.239.168.852026-04-21 → 2026-08-02 · 17 obs

○A3.162.38.1122026-07-26 → 2026-07-26 · 4 obs

○ 2026-07-26 03:39:26
● 2026-07-26 04:55:02
○ 2026-07-26 14:59:30
○ 2026-08-04 03:00:08

○A3.162.38.522026-07-26 → 2026-07-26 · 4 obs

○ 2026-07-26 03:39:26
● 2026-07-26 04:55:02
○ 2026-07-26 14:59:30
○ 2026-08-04 03:00:08

○A3.162.38.622026-07-26 → 2026-07-26 · 4 obs

○ 2026-07-26 03:39:26
● 2026-07-26 04:55:02
○ 2026-07-26 14:59:30
○ 2026-08-04 03:00:08

○A3.162.38.932026-07-26 → 2026-07-26 · 4 obs

○ 2026-07-26 03:39:26
● 2026-07-26 04:55:02
○ 2026-07-26 14:59:30
○ 2026-08-04 03:00:08

○A3.165.232.1242026-03-13 → 2026-03-13 · 4 obs

○ 2026-03-08 02:09:34
● 2026-03-13 11:28:44
○ 2026-03-13 13:56:18
○ 2026-08-04 03:00:08

○A3.165.232.262026-03-13 → 2026-03-13 · 4 obs

○ 2026-03-08 02:09:34
● 2026-03-13 11:28:44
○ 2026-03-13 13:56:18
○ 2026-08-04 03:00:08

○A3.165.232.642026-03-13 → 2026-03-13 · 4 obs

○ 2026-03-08 02:09:34
● 2026-03-13 11:28:44
○ 2026-03-13 13:56:18
○ 2026-08-04 03:00:08

○A3.165.232.692026-03-13 → 2026-03-13 · 4 obs

○ 2026-03-08 02:09:34
● 2026-03-13 11:28:44
○ 2026-03-13 13:56:18
○ 2026-08-04 03:00:08

○A3.169.252.1042026-02-17 → 2026-08-03 · 18 obs

○ 2026-02-17 02:15:02
● 2026-02-17 04:57:06
○ 2026-02-17 05:50:14
○ 2026-02-17 08:13:02
● 2026-02-17 09:09:50
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○ 2026-08-03 14:38:30
○ 2026-08-04 03:00:08

○A3.169.252.382026-02-17 → 2026-08-03 · 18 obs

○A3.169.252.642026-02-17 → 2026-08-03 · 18 obs

○A3.169.252.822026-02-17 → 2026-08-03 · 18 obs

●A3.171.38.672026-02-17 → 2026-08-04 · 17 obs

○ 2026-02-16 08:59:58
○ 2026-02-17 10:40:42
● 2026-02-17 21:14:06
○ 2026-02-17 22:23:46
○ 2026-06-16 23:51:50
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●A3.171.38.752026-02-17 → 2026-08-04 · 17 obs

●A3.171.38.802026-02-17 → 2026-08-04 · 17 obs

●A3.171.38.932026-02-17 → 2026-08-04 · 17 obs

○A3.174.141.1072026-02-16 → 2026-06-30 · 17 obs

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○A3.174.141.112026-02-16 → 2026-06-30 · 17 obs

○A3.174.141.22026-02-16 → 2026-06-30 · 17 obs

○A3.174.141.872026-02-16 → 2026-06-30 · 17 obs

○A3.174.193.1042026-06-29 → 2026-06-29 · 4 obs

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○A3.174.193.252026-06-29 → 2026-06-29 · 4 obs

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○A3.174.193.782026-06-29 → 2026-06-29 · 4 obs

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○A3.174.193.862026-06-29 → 2026-06-29 · 4 obs

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○A3.174.83.1032026-03-28 → 2026-08-03 · 18 obs

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○A3.174.83.1152026-03-28 → 2026-08-03 · 18 obs

○A3.174.83.212026-03-28 → 2026-08-03 · 18 obs

○A3.174.83.302026-03-28 → 2026-08-03 · 18 obs

○A52.84.118.1132026-02-17 → 2026-06-30 · 17 obs

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○A52.84.118.452026-02-17 → 2026-06-30 · 17 obs

○A52.84.118.612026-02-17 → 2026-06-30 · 17 obs

○A52.84.118.792026-02-17 → 2026-06-30 · 17 obs

○A52.84.80.1142026-06-12 → 2026-08-03 · 18 obs

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○A52.84.80.1192026-06-12 → 2026-08-03 · 18 obs

○A52.84.80.1272026-06-12 → 2026-08-03 · 18 obs

○A52.84.80.452026-06-12 → 2026-08-03 · 18 obs

○A54.192.151.1252026-05-28 → 2026-06-02 · 7 obs

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○A54.192.151.1282026-05-28 → 2026-06-02 · 7 obs

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○A54.192.151.342026-05-28 → 2026-06-02 · 7 obs

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○A54.192.151.662026-05-28 → 2026-06-02 · 7 obs

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○A54.239.195.102026-04-25 → 2026-04-25 · 4 obs

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○A54.239.195.1212026-04-25 → 2026-04-25 · 4 obs

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○A54.239.195.722026-04-25 → 2026-04-25 · 4 obs

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○A54.239.195.852026-04-25 → 2026-04-25 · 4 obs

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○A54.240.184.1212026-06-17 → 2026-07-27 · 8 obs

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○A54.240.184.272026-06-17 → 2026-07-27 · 8 obs

○ 2026-06-16 23:51:50
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○A54.240.184.362026-06-17 → 2026-07-27 · 8 obs

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○A54.240.184.442026-06-17 → 2026-07-27 · 8 obs

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○A99.86.20.112026-05-28 → 2026-05-28 · 4 obs

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○A99.86.20.262026-05-28 → 2026-05-28 · 4 obs

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○A99.86.20.282026-05-28 → 2026-05-28 · 4 obs

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○A99.86.20.492026-05-28 → 2026-05-28 · 4 obs

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
7knowledge.com	ns-167.awsdns-20.com, ns-640.awsdns-16.net, ns-1276.awsdns-31.org, ns-2038.awsdns-62.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.167

NS records: ns-167.awsdns-20.com, ns-640.awsdns-16.net, ns-1276.awsdns-31.org, ns-2038.awsdns-62.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 7knowledge.com (unsigned zone)

⏱️ Timing

Total: 355ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.38.75, 3.171.38.93...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-167.awsdns-20.com, ns-167.awsdns-20.com)

Analysis

IP Addresses

cdn.7knowledge.com directs to four IP numbers, which are 3.171.38.67, 3.171.38.75, 3.171.38.80 and 3.171.38.93.

Among the host names that share IP numbers with cdn.7knowledge.com are ait-dog.com, d38cjwzjvv2uib.cloudfront.net, d13yfwas5u1g1a.cloudfront.net and two others.