ntc.instructure.com - dns.ninja

`ntc.instructure.com`

DNSSEC	⚠️ Not signed
A	18.160.18.11^{🇺🇸 Amazon18.160.16.0/21}
		PTR	`server-18-160-18-11.iad12.r.cloudfront.net`
A	18.160.18.102^{🇺🇸 Amazon18.160.16.0/21}
A	18.160.18.119^{🇺🇸 Amazon18.160.16.0/21}
A	18.160.18.126^{🇺🇸 Amazon18.160.16.0/21}

`instructure.com`

	DNSSEC	⚠️ Not signed
	A	151.101.2.132^{🇺🇸 Fastly151.101.0.0/22}
	A	151.101.66.132^{🇺🇸 Fastly151.101.64.0/22}
	NS	`ns-2.awsdns-00.com` ⭐
	NS	`ns-1354.awsdns-41.org`
	NS	`ns-1799.awsdns-32.co.uk`
	NS	`ns-996.awsdns-60.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽¹⁰⁾
	MX	`aspmx2.googlemail.com`⁽²⁰⁾
	MX	`aspmx3.googlemail.com`⁽²⁰⁾
	TXT	`2acd5847c66f4325be05af390213b8c7.instructure.com`
	TXT	`MS=ms20700021`
	TXT	`ZOOM_verify_Up1Opd4-S9ChtRORps16qw`
	TXT	`adobe-idp-site-verification=4287460e7429c97ad75b995bdef6b0d7ff1c9b541946abfaf...`
	TXT	`anthropic-domain-verification-2pz98m=hO4bmZQTC5gutJZcanKeagAWR`
	TXT	`anthropic-domain-verification-4mh4xs=A4vkPXqJIA4VVi9GAbxDEPohr`
	TXT	`anthropic-domain-verification-pz1pr3=sZkvFuBJeSdmEXoj4KJYYQW8Z`
	TXT	`anthropic-domain-verification-vz61c8=kfBobb4vvH2M9xtsZhFajtKHr`
	TXT	`apple-domain-verification=8oZZjgKWADRgkWui`
	TXT	`astro-domain-verification=cmbjhzn9b0c0h01pimts1v2h1`
	TXT	`atlassian-domain-verification=pS8CbCDhL3R1mMujl07LwhltWFcJtks8mrBa7l/1uocODR9...`
	TXT	`bugcrowd-verification=817deedf9414a9ea878ff255c42a9afa`
	TXT	`canva-site-verification=jRPvv0c9AZGTaJIIPIpfAQ`
	TXT	`canva-site-verification=jiASD5n0aNnvUnfIP1w4XA`
	TXT	`docker-verification=7555bc65-ce7a-4ed2-8028-4bf0274d2c5b`
	TXT	`docusign=1ca86ab9-2ddb-4d63-b719-4798811390ca`
	TXT	`drift-domain-verification=608941e9992460f0ccd58daa1decf1808863da188a929106582...`
	TXT	`fastly-domain-delegation-jpv3oeoqr3aouxwkbhpb-00480650-2025-07-31`
	TXT	`figma-domain-verification=848b9254b032bfe488e955a140a8a63cb345186c3c69b7200f7...`
	TXT	`google-site-verification=3SDlSr_fW_6bYm0BDDK4ZXs6I5yKtB4WyXL3GNozx8I`
	TXT	`google-site-verification=Som6bbrVvI5NLh3lTcpNSbp6_0GpFezQQ9xo6CrSHOQ`
	TXT	`google-site-verification=WSlNW84_Zm6mbOaM35pQyLJUt7-OtVXNjzXe9LT-eJI`
	TXT	`google-site-verification=bC89ByaBs616PDmJLrSUG5RS3fyA8agwCtXch9G0GL0`
	TXT	`hcp-domain-verification=24de36f1e2e1ad573ac320a62707e7ec8ac0cce2dccf7985914a8...`
	TXT	`jamf-site-verification=-bAufptjYdQAfzF-s7PBtQ`
	TXT	`m6bll7f2q2d2uidl6cq273dma0`
	TXT	`miro-verification=0ee36f655f5ce0499683c255714fcdbe990af0e0`
	TXT	`mongodb-site-verification=UyyatYgRcdnc3W9g8StgD1OK8wfcIouE`
	TXT	`onetrust-domain-verification=5ef48d8081ac4ab6adce9ed80c92f4e5`
	TXT	`openai-domain-verification=dv-wb5qFISTkDoktTMXLsDMVuZ0`
	TXT	`pendo-domain-verification=2l9wI_SzXdfdzA0ZCZUES4O0FS0`
	TXT	`sprout-social-715adb3f-6166-4bc5-b3d9-b1faf326db31`
	TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:_spf.q4press.com...`
	TXT	`zapier-domain-verification-challenge=fe79b183-171c-432c-bf5d-48b3e73fd0af`
	TXT	`zoho-verification=zb08654551.zmverify.zoho.com`
	SOA	`ns-2.awsdns-00.com`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (87/100)
rank #1380 globally
rank #739 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #1,676

Same first word

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DNS History

49 records (4 active, 45 former)

○A108.138.103.1072026-06-09 → 2026-06-16 · 38 obs

○ 2026-06-09 07:19:28
● 2026-06-09 23:48:08
○ 2026-06-10 04:30:40
● 2026-06-10 14:12:54
● 2026-06-10 21:18:12
○ 2026-06-11 01:06:06
○ 2026-06-11 04:38:00
● 2026-06-11 06:50:20
● 2026-06-11 07:58:06
○ 2026-06-11 09:23:02
○ 2026-06-12 01:34:04
● 2026-06-12 02:45:18
○ 2026-06-12 06:36:18
● 2026-06-12 10:12:22
○ 2026-06-12 14:45:00
○ 2026-06-12 17:48:02
● 2026-06-12 21:53:42
● 2026-06-13 10:34:08
○ 2026-06-13 12:29:30
○ 2026-06-13 15:57:00
● 2026-06-13 23:13:16
○ 2026-06-14 00:12:50
○ 2026-06-14 19:46:48
● 2026-06-14 20:48:54
○ 2026-06-14 21:34:56
● 2026-06-14 22:49:36
● 2026-06-15 02:58:52
○ 2026-06-15 13:02:36
○ 2026-06-15 18:58:32
● 2026-06-15 22:31:50
○ 2026-06-16 01:47:48
○ 2026-06-16 05:12:20
● 2026-06-16 05:56:10
○ 2026-06-16 06:38:06
○ 2026-06-16 10:58:26
● 2026-06-16 12:42:42
○ 2026-06-16 14:08:20
○ 2026-06-19 20:37:02

○A108.138.103.32026-06-09 → 2026-06-16 · 38 obs

○A108.138.103.572026-06-09 → 2026-06-16 · 38 obs

○A108.138.103.992026-06-09 → 2026-06-16 · 38 obs

○A13.227.107.302026-04-23 → 2026-04-23 · 3 obs

● 2026-04-23 11:37:08
○ 2026-04-23 12:49:02
○ 2026-06-19 20:37:02

○A13.227.107.462026-04-23 → 2026-04-23 · 3 obs

● 2026-04-23 11:37:08
○ 2026-04-23 12:49:02
○ 2026-06-19 20:37:02

○A13.227.107.502026-04-23 → 2026-04-23 · 3 obs

● 2026-04-23 11:37:08
○ 2026-04-23 12:49:02
○ 2026-06-19 20:37:02

○A13.227.107.582026-04-23 → 2026-04-23 · 3 obs

● 2026-04-23 11:37:08
○ 2026-04-23 12:49:02
○ 2026-06-19 20:37:02

○A13.227.110.22026-05-04 → 2026-06-10 · 51 obs

○ 2026-04-23 13:57:46
● 2026-05-04 06:40:58
○ 2026-05-04 07:30:16
○ 2026-05-04 12:17:56
● 2026-05-04 15:38:12
○ 2026-05-04 16:54:10
○ 2026-05-05 15:48:26
● 2026-05-05 16:48:20
○ 2026-05-05 23:12:26
○ 2026-05-07 21:12:46
● 2026-05-08 04:55:30
○ 2026-05-08 10:52:00
○ 2026-05-19 13:52:48
● 2026-05-19 15:14:48
○ 2026-05-19 16:08:24
○ 2026-05-22 15:30:26
● 2026-05-22 18:07:56
○ 2026-05-22 19:22:52
○ 2026-05-23 04:56:32
● 2026-05-23 12:55:08
○ 2026-05-23 13:39:08
○ 2026-05-28 20:04:34
● 2026-05-29 10:14:42
● 2026-05-29 18:35:20
○ 2026-05-30 00:21:14
● 2026-05-30 02:50:08
○ 2026-05-30 03:29:54
○ 2026-05-30 04:36:34
● 2026-05-30 08:32:24
○ 2026-05-30 10:35:00
● 2026-05-31 14:05:22
○ 2026-06-01 17:09:54
○ 2026-06-05 03:58:16
● 2026-06-05 19:48:36
● 2026-06-05 20:58:50
○ 2026-06-05 22:48:40
○ 2026-06-06 04:04:52
● 2026-06-06 12:09:50
○ 2026-06-06 14:29:40
● 2026-06-07 07:06:44
○ 2026-06-07 08:18:52
● 2026-06-08 01:58:46
○ 2026-06-08 03:31:54
○ 2026-06-08 09:57:24
● 2026-06-08 16:27:08
○ 2026-06-08 21:54:04
● 2026-06-09 07:19:28
○ 2026-06-09 23:48:08
● 2026-06-10 04:30:40
○ 2026-06-10 14:12:54
○ 2026-06-19 20:37:02

○A13.227.110.272026-05-04 → 2026-06-10 · 51 obs

○A13.227.110.432026-05-04 → 2026-06-10 · 51 obs

○A13.227.110.772026-05-04 → 2026-06-10 · 51 obs

○A13.33.109.1172026-04-23 → 2026-05-18 · 7 obs

○ 2026-04-23 11:37:08
● 2026-04-23 12:49:02
○ 2026-04-23 13:57:46
○ 2026-05-12 13:14:10
● 2026-05-18 14:19:56
○ 2026-05-18 16:16:04
○ 2026-06-19 20:37:02

○A13.33.109.442026-04-23 → 2026-05-18 · 7 obs

○ 2026-04-23 11:37:08
● 2026-04-23 12:49:02
○ 2026-04-23 13:57:46
○ 2026-05-12 13:14:10
● 2026-05-18 14:19:56
○ 2026-05-18 16:16:04
○ 2026-06-19 20:37:02

○A13.33.109.942026-04-23 → 2026-05-18 · 7 obs

○ 2026-04-23 11:37:08
● 2026-04-23 12:49:02
○ 2026-04-23 13:57:46
○ 2026-05-12 13:14:10
● 2026-05-18 14:19:56
○ 2026-05-18 16:16:04
○ 2026-06-19 20:37:02

○A13.33.109.972026-04-23 → 2026-05-18 · 7 obs

○ 2026-04-23 11:37:08
● 2026-04-23 12:49:02
○ 2026-04-23 13:57:46
○ 2026-05-12 13:14:10
● 2026-05-18 14:19:56
○ 2026-05-18 16:16:04
○ 2026-06-19 20:37:02

○A18.154.110.1102026-05-19 → 2026-06-08 · 45 obs

○ 2026-05-18 16:16:04
● 2026-05-19 11:41:40
● 2026-05-19 13:52:48
○ 2026-05-19 15:14:48
● 2026-05-19 16:08:24
● 2026-05-21 06:23:30
○ 2026-05-21 09:05:52
● 2026-05-21 10:06:48
○ 2026-05-21 21:31:00
● 2026-05-21 22:11:24
● 2026-05-22 15:30:26
○ 2026-05-22 18:07:56
● 2026-05-22 19:22:52
● 2026-05-23 00:22:14
○ 2026-05-23 04:10:20
● 2026-05-23 04:56:32
○ 2026-05-23 12:55:08
● 2026-05-23 13:39:08
● 2026-05-23 15:42:26
○ 2026-05-26 10:19:56
● 2026-05-26 11:47:06
● 2026-05-28 20:04:34
○ 2026-05-29 10:14:42
○ 2026-05-29 18:35:20
● 2026-05-30 00:21:14
○ 2026-05-30 02:50:08
● 2026-05-30 03:29:54
● 2026-05-30 04:36:34
○ 2026-05-30 08:32:24
● 2026-05-30 10:35:00
○ 2026-05-31 14:05:22
● 2026-06-01 17:09:54
● 2026-06-05 03:58:16
○ 2026-06-05 19:48:36
○ 2026-06-05 20:58:50
● 2026-06-05 22:48:40
● 2026-06-06 04:04:52
○ 2026-06-06 12:09:50
● 2026-06-06 14:29:40
○ 2026-06-07 07:06:44
● 2026-06-07 08:18:52
○ 2026-06-08 01:58:46
● 2026-06-08 03:31:54
○ 2026-06-08 09:57:24
○ 2026-06-19 20:37:02

○A18.154.110.32026-05-19 → 2026-06-08 · 45 obs

○A18.154.110.492026-05-19 → 2026-06-08 · 45 obs

○A18.154.110.522026-05-19 → 2026-06-08 · 45 obs

●A18.160.18.1022026-05-23 → 2026-06-19 · 23 obs

○ 2026-05-23 00:22:14
● 2026-05-23 04:10:20
○ 2026-05-23 04:56:32
○ 2026-05-23 15:42:26
● 2026-05-26 10:19:56
○ 2026-05-26 11:47:06
○ 2026-06-11 07:58:06
● 2026-06-11 09:23:02
○ 2026-06-11 12:26:28
○ 2026-06-15 02:58:52
● 2026-06-15 13:02:36
○ 2026-06-15 13:44:22
● 2026-06-15 14:53:40
○ 2026-06-15 18:26:08
○ 2026-06-16 01:47:48
● 2026-06-16 04:32:24
○ 2026-06-16 05:12:20
○ 2026-06-16 12:42:42
● 2026-06-16 14:08:20
● 2026-06-16 15:16:14
○ 2026-06-16 16:16:04
● 2026-06-19 20:37:00
● 2026-06-19 20:37:02

●A18.160.18.112026-05-23 → 2026-06-19 · 23 obs

●A18.160.18.1192026-05-23 → 2026-06-19 · 23 obs

●A18.160.18.1262026-05-23 → 2026-06-19 · 23 obs

○A18.173.166.1082026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-17 10:46:20
● 2026-06-17 12:21:14
● 2026-06-17 14:24:46
○ 2026-06-18 00:14:32
○ 2026-06-19 20:37:02

○A18.173.166.1222026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-17 10:46:20
● 2026-06-17 12:21:14
● 2026-06-17 14:24:46
○ 2026-06-18 00:14:32
○ 2026-06-19 20:37:02

○A18.173.166.242026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-17 10:46:20
● 2026-06-17 12:21:14
● 2026-06-17 14:24:46
○ 2026-06-18 00:14:32
○ 2026-06-19 20:37:02

○A18.173.166.752026-06-17 → 2026-06-17 · 5 obs

○ 2026-06-17 10:46:20
● 2026-06-17 12:21:14
● 2026-06-17 14:24:46
○ 2026-06-18 00:14:32
○ 2026-06-19 20:37:02

○A18.64.155.1012026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 10:06:48
● 2026-05-21 21:31:00
○ 2026-05-21 22:11:24
○ 2026-06-19 20:37:02

○A18.64.155.322026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 10:06:48
● 2026-05-21 21:31:00
○ 2026-05-21 22:11:24
○ 2026-06-19 20:37:02

○A18.64.155.352026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 10:06:48
● 2026-05-21 21:31:00
○ 2026-05-21 22:11:24
○ 2026-06-19 20:37:02

○A18.64.155.492026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 10:06:48
● 2026-05-21 21:31:00
○ 2026-05-21 22:11:24
○ 2026-06-19 20:37:02

○A3.167.99.172026-05-21 → 2026-06-13 · 7 obs

○ 2026-05-21 06:23:30
● 2026-05-21 09:05:52
○ 2026-05-21 10:06:48
○ 2026-06-13 12:29:30
● 2026-06-13 13:33:18
○ 2026-06-13 15:57:00
○ 2026-06-19 20:37:02

○A3.167.99.192026-05-21 → 2026-06-13 · 7 obs

○ 2026-05-21 06:23:30
● 2026-05-21 09:05:52
○ 2026-05-21 10:06:48
○ 2026-06-13 12:29:30
● 2026-06-13 13:33:18
○ 2026-06-13 15:57:00
○ 2026-06-19 20:37:02

○A3.167.99.282026-05-21 → 2026-06-13 · 7 obs

○ 2026-05-21 06:23:30
● 2026-05-21 09:05:52
○ 2026-05-21 10:06:48
○ 2026-06-13 12:29:30
● 2026-06-13 13:33:18
○ 2026-06-13 15:57:00
○ 2026-06-19 20:37:02

○A3.167.99.82026-05-21 → 2026-06-13 · 7 obs

○ 2026-05-21 06:23:30
● 2026-05-21 09:05:52
○ 2026-05-21 10:06:48
○ 2026-06-13 12:29:30
● 2026-06-13 13:33:18
○ 2026-06-13 15:57:00
○ 2026-06-19 20:37:02

○A52.85.78.1232026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 23:17:38
● 2026-06-17 02:49:14
○ 2026-06-17 05:43:20
○ 2026-06-19 20:37:02

○A52.85.78.1262026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 23:17:38
● 2026-06-17 02:49:14
○ 2026-06-17 05:43:20
○ 2026-06-19 20:37:02

○A52.85.78.342026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 23:17:38
● 2026-06-17 02:49:14
○ 2026-06-17 05:43:20
○ 2026-06-19 20:37:02

○A52.85.78.722026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 23:17:38
● 2026-06-17 02:49:14
○ 2026-06-17 05:43:20
○ 2026-06-19 20:37:02

○A54.230.79.1112026-06-18 → 2026-06-19 · 6 obs

○ 2026-06-18 04:30:16
● 2026-06-18 11:56:32
○ 2026-06-19 05:14:32
● 2026-06-19 06:27:08
○ 2026-06-19 07:28:06
○ 2026-06-19 20:37:02

○A54.230.79.222026-06-18 → 2026-06-19 · 6 obs

○ 2026-06-18 04:30:16
● 2026-06-18 11:56:32
○ 2026-06-19 05:14:32
● 2026-06-19 06:27:08
○ 2026-06-19 07:28:06
○ 2026-06-19 20:37:02

○A54.230.79.352026-06-18 → 2026-06-19 · 6 obs

○ 2026-06-18 04:30:16
● 2026-06-18 11:56:32
○ 2026-06-19 05:14:32
● 2026-06-19 06:27:08
○ 2026-06-19 07:28:06
○ 2026-06-19 20:37:02

○A54.230.79.822026-06-18 → 2026-06-19 · 6 obs

○ 2026-06-18 04:30:16
● 2026-06-18 11:56:32
○ 2026-06-19 05:14:32
● 2026-06-19 06:27:08
○ 2026-06-19 07:28:06
○ 2026-06-19 20:37:02

○A99.86.12.1292026-04-23 → 2026-06-19 · 76 obs

○ 2026-04-23 12:49:02
● 2026-04-23 13:57:46
○ 2026-05-04 06:40:58
● 2026-05-04 07:30:16
● 2026-05-04 12:17:56
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● 2026-06-11 01:06:06
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● 2026-06-16 10:58:26
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● 2026-06-16 23:17:38
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● 2026-06-18 00:14:32
● 2026-06-18 04:30:16
○ 2026-06-18 11:56:32
● 2026-06-19 05:14:32
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● 2026-06-19 07:28:06
○ 2026-06-19 20:37:00
○ 2026-06-19 20:37:02

○A99.86.12.22026-04-23 → 2026-06-19 · 76 obs

○A99.86.12.202026-04-23 → 2026-06-19 · 76 obs

○A99.86.12.882026-04-23 → 2026-06-19 · 76 obs

○CNAMEcluster27.instructure.com2018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 04:00:32
○ 2026-04-23 11:37:08
○ 2026-06-19 20:37:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
instructure.com	ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org	2 records

✅ Authoritative Response

Server:205.251.197.74

NS records: ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructure.com (unsigned zone)

⏱️ Timing

Total: 363ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.160.18.102, 18.160.18.11...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-2.awsdns-00.com, ns-2.awsdns-00.com)

Analysis

IP Addresses

ntc.instructure.com resolves to four IP addresses: 18.160.18.11, 18.160.18.102, 18.160.18.119 and 18.160.18.126.

Additional host names — d3dsxuk4y6u1mt.cloudfront.net, fernfunerals-co-za.gathercloud.website, drbpct2ketxef.cloudfront.net and two others — share IP numbers with ntc.instructure.com.