mathapedia.com - dns.ninja

`mathapedia.com`

DNSSEC	⚠️ Not signed
A	18.160.18.13^{🇺🇸 Amazon18.160.16.0/21}
		PTR	`server-18-160-18-13.iad12.r.cloudfront.net`
A	18.160.18.73^{🇺🇸 Amazon18.160.16.0/21}
A	18.160.18.81^{🇺🇸 Amazon18.160.16.0/21}
A	18.160.18.125^{🇺🇸 Amazon18.160.16.0/21}
NS	`ns-1214.awsdns-23.org` ⭐
		A	2600:9000:5304:be00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1214.awsdns-23.org`
		A	205.251.196.190^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1214.awsdns-23.org`
NS	`ns-1832.awsdns-37.co.uk`
		A	2600:9000:5307:2800::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1832.awsdns-37.co.uk`
		A	205.251.199.40^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1832.awsdns-37.co.uk`
NS	`ns-602.awsdns-11.net`
		A	2600:9000:5302:5a00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-602.awsdns-11.net`
		A	205.251.194.90^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-602.awsdns-11.net`
NS	`ns-61.awsdns-07.com`
		A	2600:9000:5300:3d00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-61.awsdns-07.com`
		A	205.251.192.61^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-61.awsdns-07.com`
SOA	`ns-1214.awsdns-23.org`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=1785712657

Same first word

mathapedia.com

DNS History

92 records (8 active, 84 former)

○NSdns.stabletransit.com2015-05-24 → 2019-01-26 · 4 obs

● 2015-05-24 00:18:06
● 2019-01-26 15:57:28
○ 2026-02-17 00:35:58
○ 2026-08-02 23:19:32

○NSdns1.stabletransit.com2015-05-24 → 2019-01-26 · 4 obs

● 2015-05-24 00:18:06
● 2019-01-26 15:57:28
○ 2026-02-17 00:35:58
○ 2026-08-02 23:19:32

○NSdns2.stabletransit.com2015-05-24 → 2019-01-26 · 4 obs

● 2015-05-24 00:18:06
● 2019-01-26 15:57:28
○ 2026-02-17 00:35:58
○ 2026-08-02 23:19:32

●NSns-1214.awsdns-23.org2026-02-17 → 2026-08-02 · 3 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
● 2026-08-02 23:19:32

●NSns-1832.awsdns-37.co.uk2026-02-17 → 2026-08-02 · 3 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
● 2026-08-02 23:19:32

●NSns-602.awsdns-11.net2026-02-17 → 2026-08-02 · 3 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
● 2026-08-02 23:19:32

●NSns-61.awsdns-07.com2026-02-17 → 2026-08-02 · 3 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
● 2026-08-02 23:19:32

○A108.139.29.1112026-03-08 → 2026-05-26 · 19 obs

○ 2026-03-07 23:38:00
● 2026-03-08 00:12:06
○ 2026-03-08 05:15:00
○ 2026-04-02 10:14:14
● 2026-04-02 17:50:26
○ 2026-04-02 18:33:36
● 2026-04-03 00:11:58
○ 2026-04-03 08:09:38
○ 2026-05-19 01:31:02
● 2026-05-19 11:10:04
● 2026-05-19 11:45:14
○ 2026-05-19 16:01:58
○ 2026-05-22 06:43:58
● 2026-05-22 10:02:52
○ 2026-05-22 12:08:16
○ 2026-05-26 16:14:06
● 2026-05-26 19:58:08
○ 2026-05-27 09:22:52
○ 2026-08-02 23:19:32

○A108.139.29.212026-03-08 → 2026-05-26 · 19 obs

○A108.139.29.652026-03-08 → 2026-05-26 · 19 obs

○A108.139.29.772026-03-08 → 2026-05-26 · 19 obs

○A13.225.196.222026-05-07 → 2026-05-07 · 7 obs

○ 2026-04-27 19:53:16
● 2026-05-07 13:55:42
○ 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
● 2026-05-07 18:28:16
○ 2026-05-07 22:48:50
○ 2026-08-02 23:19:32

○A13.225.196.512026-05-07 → 2026-05-07 · 7 obs

○ 2026-04-27 19:53:16
● 2026-05-07 13:55:42
○ 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
● 2026-05-07 18:28:16
○ 2026-05-07 22:48:50
○ 2026-08-02 23:19:32

○A13.225.196.632026-05-07 → 2026-05-07 · 7 obs

○ 2026-04-27 19:53:16
● 2026-05-07 13:55:42
○ 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
● 2026-05-07 18:28:16
○ 2026-05-07 22:48:50
○ 2026-08-02 23:19:32

○A13.225.196.642026-05-07 → 2026-05-07 · 7 obs

○ 2026-04-27 19:53:16
● 2026-05-07 13:55:42
○ 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
● 2026-05-07 18:28:16
○ 2026-05-07 22:48:50
○ 2026-08-02 23:19:32

○A13.226.144.1242026-02-17 → 2026-04-22 · 19 obs

○ 2026-02-17 00:35:58
● 2026-02-17 04:24:42
○ 2026-02-18 20:02:40
● 2026-02-19 01:27:04
○ 2026-02-19 03:46:06
● 2026-02-23 00:36:04
● 2026-03-03 06:35:22
○ 2026-03-04 12:11:20
● 2026-03-08 05:15:00
● 2026-03-20 11:01:14
○ 2026-03-23 16:16:06
○ 2026-03-28 12:43:22
● 2026-03-31 21:42:36
● 2026-04-21 10:58:14
○ 2026-04-22 02:50:02
● 2026-04-22 06:37:14
● 2026-04-22 16:39:38
○ 2026-04-26 05:37:06
○ 2026-08-02 23:19:32

○A13.226.144.562026-02-17 → 2026-04-22 · 19 obs

○A13.226.144.842026-02-17 → 2026-04-22 · 19 obs

○A13.226.144.852026-02-17 → 2026-04-22 · 19 obs

○A13.226.244.122026-05-29 → 2026-06-16 · 7 obs

○ 2026-05-29 03:45:14
● 2026-05-29 11:07:16
○ 2026-05-29 19:27:52
○ 2026-06-16 19:10:20
● 2026-06-16 22:02:56
○ 2026-06-16 22:39:12
○ 2026-08-02 23:19:32

○A13.226.244.1272026-05-29 → 2026-06-16 · 7 obs

○ 2026-05-29 03:45:14
● 2026-05-29 11:07:16
○ 2026-05-29 19:27:52
○ 2026-06-16 19:10:20
● 2026-06-16 22:02:56
○ 2026-06-16 22:39:12
○ 2026-08-02 23:19:32

○A13.226.244.162026-05-29 → 2026-06-16 · 7 obs

○ 2026-05-29 03:45:14
● 2026-05-29 11:07:16
○ 2026-05-29 19:27:52
○ 2026-06-16 19:10:20
● 2026-06-16 22:02:56
○ 2026-06-16 22:39:12
○ 2026-08-02 23:19:32

○A13.226.244.382026-05-29 → 2026-06-16 · 7 obs

○ 2026-05-29 03:45:14
● 2026-05-29 11:07:16
○ 2026-05-29 19:27:52
○ 2026-06-16 19:10:20
● 2026-06-16 22:02:56
○ 2026-06-16 22:39:12
○ 2026-08-02 23:19:32

○A13.249.182.1252026-02-18 → 2026-08-02 · 27 obs

○ 2026-02-17 00:35:58
○ 2026-02-17 04:24:42
● 2026-02-18 20:02:40
○ 2026-02-19 01:27:04
○ 2026-03-22 06:36:26
● 2026-07-03 10:16:28
○ 2026-07-05 08:38:26
● 2026-07-07 09:24:00
● 2026-07-09 05:27:04
○ 2026-07-12 04:07:12
● 2026-07-18 01:15:24
● 2026-07-24 00:29:18
○ 2026-07-25 19:07:44
○ 2026-07-29 09:41:54
● 2026-07-29 16:58:56
○ 2026-07-29 18:48:58
● 2026-07-30 03:00:34
○ 2026-07-30 03:47:26
● 2026-07-31 09:13:28
○ 2026-07-31 12:46:08
● 2026-07-31 15:28:06
○ 2026-07-31 18:43:40
● 2026-08-01 06:52:58
○ 2026-08-01 22:48:48
● 2026-08-02 15:21:46
○ 2026-08-02 17:46:24
○ 2026-08-02 23:19:32

○A13.249.182.622026-02-18 → 2026-08-02 · 27 obs

○A13.249.182.662026-02-18 → 2026-08-02 · 27 obs

○A13.249.182.982026-02-18 → 2026-08-02 · 27 obs

○A13.33.109.1132026-04-22 → 2026-05-26 · 17 obs

○ 2026-04-21 10:58:14
● 2026-04-22 02:50:02
○ 2026-04-22 06:37:14
○ 2026-04-27 11:21:58
● 2026-04-27 18:12:16
○ 2026-04-27 19:53:16
○ 2026-05-10 07:47:44
● 2026-05-10 16:11:14
○ 2026-05-10 20:29:10
○ 2026-05-24 11:31:24
● 2026-05-24 17:45:54
○ 2026-05-24 22:54:48
● 2026-05-26 11:40:02
○ 2026-05-26 13:49:48
● 2026-05-26 15:17:44
○ 2026-05-26 16:14:06
○ 2026-08-02 23:19:32

○A13.33.109.1232026-04-22 → 2026-05-26 · 17 obs

○A13.33.109.152026-04-22 → 2026-05-26 · 17 obs

○A13.33.109.852026-04-22 → 2026-05-26 · 17 obs

○A13.33.153.1022026-03-29 → 2026-03-31 · 9 obs

○ 2026-03-28 18:43:44
● 2026-03-29 04:07:14
○ 2026-03-29 20:36:06
● 2026-03-30 01:59:36
● 2026-03-30 04:48:58
○ 2026-03-30 18:54:28
● 2026-03-31 03:23:10
○ 2026-03-31 05:24:28
○ 2026-08-02 23:19:32

○A13.33.153.1222026-03-29 → 2026-03-31 · 9 obs

○A13.33.153.262026-03-29 → 2026-03-31 · 9 obs

○A13.33.153.52026-03-29 → 2026-03-31 · 9 obs

○A13.33.235.1112026-07-11 → 2026-07-19 · 19 obs

○ 2026-07-09 05:27:04
● 2026-07-11 07:02:20
○ 2026-07-11 07:51:04
● 2026-07-11 08:32:34
○ 2026-07-11 12:05:50
● 2026-07-12 09:54:04
○ 2026-07-12 10:48:54
● 2026-07-13 07:44:32
○ 2026-07-13 23:30:00
● 2026-07-14 14:05:50
● 2026-07-15 12:13:30
○ 2026-07-16 11:37:00
○ 2026-07-17 02:29:20
● 2026-07-19 04:27:46
● 2026-07-19 08:38:32
○ 2026-07-19 11:09:34
● 2026-07-19 16:31:38
○ 2026-07-19 20:20:58
○ 2026-08-02 23:19:32

○A13.33.235.222026-07-11 → 2026-07-19 · 19 obs

○A13.33.235.442026-07-11 → 2026-07-19 · 19 obs

○A13.33.235.802026-07-11 → 2026-07-19 · 19 obs

●A18.160.18.1252026-02-19 → 2026-08-02 · 19 obs

○ 2026-02-19 01:27:04
● 2026-02-19 03:46:06
○ 2026-02-19 14:55:02
● 2026-02-20 00:14:14
○ 2026-02-20 00:47:52
○ 2026-03-03 06:35:22
● 2026-03-04 12:11:20
○ 2026-03-07 23:38:00
○ 2026-06-17 06:04:04
● 2026-06-19 05:22:32
● 2026-06-21 19:16:58
○ 2026-06-22 21:38:16
○ 2026-06-27 04:13:46
● 2026-07-01 16:15:20
● 2026-07-03 01:10:50
○ 2026-07-03 08:48:36
● 2026-07-04 08:37:18
○ 2026-07-04 10:31:38
● 2026-08-02 23:19:32

●A18.160.18.132026-02-19 → 2026-08-02 · 19 obs

●A18.160.18.732026-02-19 → 2026-08-02 · 19 obs

●A18.160.18.812026-02-19 → 2026-08-02 · 19 obs

○A18.160.213.1142026-05-19 → 2026-07-01 · 18 obs

○ 2026-05-19 16:01:58
● 2026-05-19 21:04:08
● 2026-05-21 01:30:20
○ 2026-05-21 05:38:18
○ 2026-05-24 09:51:34
● 2026-05-24 22:54:48
○ 2026-05-26 11:40:02
○ 2026-05-31 20:55:48
● 2026-06-01 20:25:02
● 2026-06-05 02:13:44
○ 2026-06-06 14:02:36
○ 2026-06-07 22:39:32
● 2026-06-30 12:31:06
● 2026-07-01 03:04:38
○ 2026-07-01 12:32:02
● 2026-07-01 20:24:30
○ 2026-07-02 23:40:58
○ 2026-08-02 23:19:32

○A18.160.213.1252026-05-19 → 2026-07-01 · 18 obs

○A18.160.213.752026-05-19 → 2026-07-01 · 18 obs

○A18.160.213.842026-05-19 → 2026-07-01 · 18 obs

○A18.165.242.1282026-02-17 → 2026-02-17 · 4 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
○ 2026-02-17 04:24:42
○ 2026-08-02 23:19:32

○A18.165.242.252026-02-17 → 2026-02-17 · 4 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
○ 2026-02-17 04:24:42
○ 2026-08-02 23:19:32

○A18.165.242.52026-02-17 → 2026-02-17 · 4 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
○ 2026-02-17 04:24:42
○ 2026-08-02 23:19:32

○A18.165.242.792026-02-17 → 2026-02-17 · 4 obs

○ 2019-01-26 15:57:28
● 2026-02-17 00:35:58
○ 2026-02-17 04:24:42
○ 2026-08-02 23:19:32

○A18.173.166.1152026-03-28 → 2026-08-02 · 30 obs

○ 2026-03-28 12:43:22
● 2026-03-28 18:43:44
○ 2026-03-29 04:07:14
● 2026-03-29 20:36:06
○ 2026-03-30 01:59:36
○ 2026-05-09 06:49:28
● 2026-05-13 05:58:12
○ 2026-05-13 12:33:48
○ 2026-06-18 22:10:36
● 2026-07-01 01:01:04
● 2026-07-05 08:38:26
○ 2026-07-07 09:24:00
○ 2026-07-15 12:13:30
● 2026-07-16 23:24:04
● 2026-07-27 03:18:02
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● 2026-07-27 13:13:54
○ 2026-07-28 01:54:58
● 2026-07-30 21:50:42
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● 2026-07-31 12:46:08
○ 2026-07-31 15:28:06
● 2026-07-31 18:43:40
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● 2026-08-01 22:48:48
○ 2026-08-02 00:21:00
● 2026-08-02 12:54:04
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● 2026-08-02 17:46:24
○ 2026-08-02 23:19:32

○A18.173.166.232026-03-28 → 2026-08-02 · 30 obs

○A18.173.166.242026-03-28 → 2026-08-02 · 30 obs

○A18.173.166.72026-03-28 → 2026-08-02 · 30 obs

○A18.238.4.1162026-05-08 → 2026-08-02 · 25 obs

○ 2026-05-07 22:48:50
● 2026-05-08 23:05:00
○ 2026-05-08 23:53:48
● 2026-07-12 18:18:34
○ 2026-07-13 02:16:58
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● 2026-07-19 07:44:42
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● 2026-07-20 16:43:28
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● 2026-07-23 05:40:40
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○ 2026-08-02 23:19:32

○A18.238.4.1252026-05-08 → 2026-08-02 · 25 obs

○A18.238.4.662026-05-08 → 2026-08-02 · 25 obs

○A18.238.4.962026-05-08 → 2026-08-02 · 25 obs

○A18.239.18.1292026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 06:36:26
● 2026-03-23 16:16:06
○ 2026-03-24 04:22:04
○ 2026-08-02 23:19:32

○A18.239.18.222026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 06:36:26
● 2026-03-23 16:16:06
○ 2026-03-24 04:22:04
○ 2026-08-02 23:19:32

○A18.239.18.262026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 06:36:26
● 2026-03-23 16:16:06
○ 2026-03-24 04:22:04
○ 2026-08-02 23:19:32

○A18.239.18.382026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 06:36:26
● 2026-03-23 16:16:06
○ 2026-03-24 04:22:04
○ 2026-08-02 23:19:32

○A18.239.183.1092026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 13:55:42
● 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
○ 2026-08-02 23:19:32

○A18.239.183.152026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 13:55:42
● 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
○ 2026-08-02 23:19:32

○A18.239.183.572026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 13:55:42
● 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
○ 2026-08-02 23:19:32

○A18.239.183.882026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-07 13:55:42
● 2026-05-07 14:59:10
○ 2026-05-07 15:37:26
○ 2026-08-02 23:19:32

○A198.101.199.162015-05-24 → 2019-01-26 · 4 obs

● 2015-05-24 00:18:06
● 2019-01-26 15:57:28
○ 2026-02-17 00:35:58
○ 2026-08-02 23:19:32

○A216.137.52.1232026-05-27 → 2026-06-03 · 18 obs

○ 2026-05-26 19:58:08
● 2026-05-27 09:22:52
● 2026-05-27 09:55:44
○ 2026-05-27 15:15:28
● 2026-05-27 16:30:56
○ 2026-05-28 05:42:26
○ 2026-05-29 11:07:16
● 2026-05-29 19:27:52
○ 2026-05-29 21:38:06
● 2026-05-30 00:04:46
○ 2026-05-30 02:19:08
○ 2026-06-02 22:31:14
● 2026-06-03 03:17:22
● 2026-06-03 04:22:28
○ 2026-06-03 04:55:20
● 2026-06-03 08:28:36
○ 2026-06-03 10:57:28
○ 2026-08-02 23:19:32

○A216.137.52.342026-05-27 → 2026-06-03 · 18 obs

○A216.137.52.392026-05-27 → 2026-06-03 · 18 obs

○A216.137.52.702026-05-27 → 2026-06-03 · 18 obs

○A3.165.113.1212026-07-26 → 2026-07-28 · 10 obs

○ 2026-07-26 03:58:00
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● 2026-07-27 11:15:16
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○ 2026-08-02 23:19:32

○A3.165.113.1232026-07-26 → 2026-07-28 · 10 obs

○A3.165.113.1242026-07-26 → 2026-07-28 · 10 obs

○A3.165.113.162026-07-26 → 2026-07-28 · 10 obs

○A3.165.148.1232026-05-29 → 2026-06-06 · 7 obs

○ 2026-05-28 05:42:26
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○A3.165.148.152026-05-29 → 2026-06-06 · 7 obs

○ 2026-05-28 05:42:26
● 2026-05-29 01:03:48
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○A3.165.148.472026-05-29 → 2026-06-06 · 7 obs

○ 2026-05-28 05:42:26
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○A3.165.148.842026-05-29 → 2026-06-06 · 7 obs

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○A3.167.192.1062026-07-25 → 2026-07-25 · 4 obs

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○A3.167.192.452026-07-25 → 2026-07-25 · 4 obs

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○A3.167.192.552026-07-25 → 2026-07-25 · 4 obs

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○A3.167.192.672026-07-25 → 2026-07-25 · 4 obs

○ 2026-07-24 00:29:18
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○A54.230.201.1052026-04-26 → 2026-06-30 · 17 obs

○ 2026-04-22 16:39:38
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○A54.230.201.1082026-04-26 → 2026-06-30 · 17 obs

○A54.230.201.1122026-04-26 → 2026-06-30 · 17 obs

○A54.230.201.322026-04-26 → 2026-06-30 · 17 obs

○A99.84.237.1092026-03-31 → 2026-07-30 · 23 obs

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○A99.84.237.432026-03-31 → 2026-07-30 · 23 obs

○A99.84.237.462026-03-31 → 2026-07-30 · 23 obs

○A99.84.237.562026-03-31 → 2026-07-30 · 23 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, d.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net...	-
mathapedia.com	ns-61.awsdns-07.com, ns-602.awsdns-11.net, ns-1214.awsdns-23.org, ns-1832.awsdns-37.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.61

NS records: ns-61.awsdns-07.com, ns-602.awsdns-11.net, ns-1214.awsdns-23.org, ns-1832.awsdns-37.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathapedia.com (unsigned zone)

⏱️ Timing

Total: 1488ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.160.18.13, 18.160.18.125...`
NS	4	`ns-1214.awsdns-23.org, ns-1832.awsdns-37.co.uk...`
SOA	1	`ns-1214.awsdns-23.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-61.awsdns-07.com, ns-61.awsdns-07.com)

Analysis

IP Addresses

mathapedia.com directs to four IP numbers, which are 18.160.18.13, 18.160.18.73, 18.160.18.81 and 18.160.18.125.

Among the host names that share IP numbers with mathapedia.com are finalforms-amp.com, alaturkayachting.com, server-18-160-18-125.iad12.r.cloudfront.net and two others.

Name Servers

The domain mathapedia.com is delegated to these four name servers: ns-61.awsdns-07.com, ns-602.awsdns-11.net, ns-1214.awsdns-23.org and ns-1832.awsdns-37.co.uk.

There is at least partial name server overlap between mathapedia.com and other domains — xmlclick.adzestocp.com, makeitpersonal.com, sonoyama-runa.jp and two more among them.

All four hostnames — ns-61.awsdns-07.com, ns-602.awsdns-11.net, ns-1214.awsdns-23.org and ns-1832.awsdns-37.co.uk — resolve to two IP numbers apiece: ns-61.awsdns-07.com to 205.251.192.61 and 2600:9000:5300:3d00::1; ns-602.awsdns-11.net to 205.251.194.90 and 2600:9000:5302:5a00::1; ns-1214.awsdns-23.org to 205.251.196.190 and 2600:9000:5304:be00::1; ns-1832.awsdns-37.co.uk to 205.251.199.40 and 2600:9000:5307:2800::1.