`usc.instructure.com`

DNSSEC	⚠️ Not signed
A	108.158.186.9^{🇺🇸 Amazon108.158.184.0/22}
		PTR	`server-108-158-186-9.gig52.r.cloudfront.net`
A	108.158.186.26^{🇺🇸 Amazon108.158.184.0/22}
A	108.158.186.96^{🇺🇸 Amazon108.158.184.0/22}
A	108.158.186.121^{🇺🇸 Amazon108.158.184.0/22}

`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=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	`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 #1299 globally
rank #705 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #1,020

Same first word

usc.edu.tt

usc.energy

usc.org

usc.ws

usc.jp

usc.la

usc.ee

usc.k12.mn.us

usc.tv

usc.co

usc.cash

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usc.systems

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usc.eu

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cus.be

csu.edu

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cus.tw

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scu.ac.kr

ucs.co.tz

ucs.ltd

ucs.gr

scu.jp

suc.at

scu.k12.ca.us

csu.qc.ca

ucs.jp

DNS History

44 records (4 active, 40 former)

○A108.139.113.1132026-04-08 → 2026-04-11 · 12 obs

○ 2026-04-08 11:51:18
● 2026-04-08 14:07:38
○ 2026-04-08 19:08:40
○ 2026-04-09 05:21:32
● 2026-04-09 18:53:46
○ 2026-04-09 19:29:38
● 2026-04-09 23:15:58
○ 2026-04-10 00:34:52
○ 2026-04-11 15:12:24
● 2026-04-11 17:05:38
○ 2026-04-11 20:38:54
○ 2026-04-12 01:43:46

○A108.139.113.232026-04-08 → 2026-04-11 · 12 obs

○A108.139.113.512026-04-08 → 2026-04-11 · 12 obs

○A108.139.113.592026-04-08 → 2026-04-11 · 12 obs

●A108.158.186.1212026-03-30 → 2026-04-12 · 16 obs

○ 2026-03-30 08:28:42
● 2026-03-30 11:05:28
● 2026-03-30 13:45:00
○ 2026-03-30 23:02:18
○ 2026-04-01 20:12:46
● 2026-04-01 20:58:16
● 2026-04-02 00:43:10
○ 2026-04-02 03:46:34
○ 2026-04-10 00:34:52
● 2026-04-11 00:13:26
○ 2026-04-11 15:12:24
○ 2026-04-11 17:05:38
● 2026-04-11 20:38:54
○ 2026-04-12 00:12:10
● 2026-04-12 01:43:44
● 2026-04-12 01:43:46

●A108.158.186.262026-03-30 → 2026-04-12 · 16 obs

●A108.158.186.92026-03-30 → 2026-04-12 · 16 obs

●A108.158.186.962026-03-30 → 2026-04-12 · 16 obs

○A13.225.107.1172026-03-28 → 2026-04-12 · 30 obs

○ 2026-03-28 13:44:22
● 2026-03-28 14:25:32
○ 2026-03-28 20:38:50
● 2026-03-28 22:07:30
○ 2026-03-29 23:22:28
● 2026-03-30 00:14:40
● 2026-03-30 08:28:42
○ 2026-03-30 11:05:28
○ 2026-03-31 10:59:54
● 2026-03-31 11:45:58
○ 2026-03-31 18:28:30
○ 2026-04-05 07:41:34
● 2026-04-05 12:49:18
○ 2026-04-05 14:09:00
○ 2026-04-06 03:57:50
● 2026-04-06 09:57:00
● 2026-04-07 00:13:20
○ 2026-04-07 06:54:40
○ 2026-04-07 08:36:12
● 2026-04-07 09:52:36
● 2026-04-08 06:59:22
○ 2026-04-08 08:36:44
○ 2026-04-08 14:07:38
● 2026-04-08 19:08:40
● 2026-04-08 23:22:22
○ 2026-04-09 05:21:32
○ 2026-04-11 20:38:54
● 2026-04-12 00:12:10
○ 2026-04-12 01:43:44
○ 2026-04-12 01:43:46

○A13.225.107.452026-03-28 → 2026-04-12 · 30 obs

○A13.225.107.542026-03-28 → 2026-04-12 · 30 obs

○A13.225.107.912026-03-28 → 2026-04-12 · 30 obs

○A13.226.209.22026-03-14 → 2026-03-28 · 59 obs

○ 2026-03-14 15:59:18
● 2026-03-14 19:36:56
○ 2026-03-14 23:11:32
○ 2026-03-16 05:00:46
● 2026-03-16 07:08:36
● 2026-03-17 02:49:44
○ 2026-03-17 03:55:34
○ 2026-03-17 18:05:36
● 2026-03-17 19:41:18
○ 2026-03-17 20:14:34
○ 2026-03-17 22:39:34
● 2026-03-18 00:13:50
○ 2026-03-18 02:23:56
○ 2026-03-19 20:53:58
● 2026-03-20 00:14:06
○ 2026-03-20 01:59:30
○ 2026-03-22 15:35:04
● 2026-03-23 00:13:36
○ 2026-03-23 02:51:58
○ 2026-03-23 11:42:06
● 2026-03-23 19:14:40
● 2026-03-24 00:35:18
○ 2026-03-24 02:25:52
○ 2026-03-24 07:02:04
● 2026-03-24 12:22:22
○ 2026-03-24 14:26:04
○ 2026-03-25 03:27:36
● 2026-03-25 04:07:44
○ 2026-03-25 07:13:38
○ 2026-03-25 11:40:54
● 2026-03-25 12:13:10
○ 2026-03-25 13:13:50
○ 2026-03-25 20:28:32
● 2026-03-25 21:25:50
○ 2026-03-25 22:31:24
○ 2026-03-26 01:31:16
● 2026-03-26 03:17:56
● 2026-03-26 06:07:02
○ 2026-03-26 07:53:36
○ 2026-03-26 16:49:32
● 2026-03-26 18:13:26
○ 2026-03-26 19:24:32
○ 2026-03-27 02:31:46
● 2026-03-27 03:19:14
○ 2026-03-27 06:32:44
● 2026-03-27 08:22:44
○ 2026-03-27 08:53:52
● 2026-03-27 10:45:42
● 2026-03-27 14:27:38
○ 2026-03-27 14:58:56
● 2026-03-28 00:12:54
● 2026-03-28 00:43:04
○ 2026-03-28 02:10:40
○ 2026-03-28 02:58:40
● 2026-03-28 07:01:38
○ 2026-03-28 07:57:50
● 2026-03-28 08:42:36
○ 2026-03-28 13:44:22
○ 2026-04-12 01:43:46

○A13.226.209.262026-03-14 → 2026-03-28 · 59 obs

○A13.226.209.922026-03-14 → 2026-03-28 · 59 obs

○A13.226.209.992026-03-14 → 2026-03-28 · 59 obs

○A13.33.235.392026-03-24 → 2026-03-27 · 39 obs

○ 2026-03-24 02:25:52
● 2026-03-24 07:02:04
○ 2026-03-24 12:22:22
○ 2026-03-24 20:15:28
● 2026-03-24 20:46:20
○ 2026-03-24 22:51:24
● 2026-03-24 23:51:02
○ 2026-03-25 01:01:18
○ 2026-03-25 01:49:26
● 2026-03-25 03:27:36
○ 2026-03-25 04:07:44
● 2026-03-25 07:13:38
○ 2026-03-25 09:06:50
○ 2026-03-25 09:53:42
● 2026-03-25 11:06:54
○ 2026-03-25 11:40:54
○ 2026-03-25 13:13:50
● 2026-03-25 16:06:10
● 2026-03-25 20:28:32
○ 2026-03-25 21:25:50
● 2026-03-25 22:31:24
○ 2026-03-25 23:08:02
● 2026-03-26 01:31:16
○ 2026-03-26 03:17:56
○ 2026-03-26 06:07:02
● 2026-03-26 07:53:36
○ 2026-03-26 11:41:20
● 2026-03-26 12:13:08
○ 2026-03-26 13:43:04
● 2026-03-26 16:49:32
○ 2026-03-26 18:13:26
○ 2026-03-27 01:58:26
● 2026-03-27 02:31:46
○ 2026-03-27 03:19:14
● 2026-03-27 06:32:44
○ 2026-03-27 08:22:44
● 2026-03-27 08:53:52
○ 2026-03-27 10:45:42
○ 2026-04-12 01:43:46

○A13.33.235.712026-03-24 → 2026-03-27 · 39 obs

○A13.33.235.722026-03-24 → 2026-03-27 · 39 obs

○A13.33.235.862026-03-24 → 2026-03-27 · 39 obs

○A18.154.206.1282026-03-15 → 2026-03-25 · 25 obs

○ 2026-03-15 03:01:10
● 2026-03-15 17:54:30
○ 2026-03-15 23:39:10
● 2026-03-16 03:47:10
○ 2026-03-16 05:00:46
○ 2026-03-17 04:57:22
● 2026-03-17 07:34:26
○ 2026-03-17 12:22:28
● 2026-03-17 13:04:10
● 2026-03-17 18:05:36
○ 2026-03-17 19:41:18
● 2026-03-17 20:14:34
○ 2026-03-17 22:39:34
○ 2026-03-18 13:20:30
● 2026-03-18 14:46:24
○ 2026-03-18 21:12:56
● 2026-03-18 21:43:26
○ 2026-03-19 04:04:50
○ 2026-03-20 01:59:30
● 2026-03-20 08:00:24
○ 2026-03-20 14:13:52
○ 2026-03-25 07:13:38
● 2026-03-25 09:06:50
○ 2026-03-25 09:53:42
○ 2026-04-12 01:43:46

○A18.154.206.312026-03-15 → 2026-03-25 · 25 obs

○A18.154.206.372026-03-15 → 2026-03-25 · 25 obs

○A18.154.206.62026-03-15 → 2026-03-25 · 25 obs

○A18.165.116.1062026-03-31 → 2026-03-31 · 4 obs

○ 2026-03-31 03:49:20
● 2026-03-31 08:12:40
○ 2026-03-31 09:43:04
○ 2026-04-12 01:43:46

○A18.165.116.1082026-03-31 → 2026-03-31 · 4 obs

○ 2026-03-31 03:49:20
● 2026-03-31 08:12:40
○ 2026-03-31 09:43:04
○ 2026-04-12 01:43:46

○A18.165.116.882026-03-31 → 2026-03-31 · 4 obs

○ 2026-03-31 03:49:20
● 2026-03-31 08:12:40
○ 2026-03-31 09:43:04
○ 2026-04-12 01:43:46

○A18.165.116.952026-03-31 → 2026-03-31 · 4 obs

○ 2026-03-31 03:49:20
● 2026-03-31 08:12:40
○ 2026-03-31 09:43:04
○ 2026-04-12 01:43:46

○A18.165.122.172026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 12:22:22
● 2026-03-24 14:26:04
○ 2026-03-24 20:15:28
○ 2026-04-12 01:43:46

○A18.165.122.502026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 12:22:22
● 2026-03-24 14:26:04
○ 2026-03-24 20:15:28
○ 2026-04-12 01:43:46

○A18.165.122.542026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 12:22:22
● 2026-03-24 14:26:04
○ 2026-03-24 20:15:28
○ 2026-04-12 01:43:46

○A18.165.122.702026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-24 12:22:22
● 2026-03-24 14:26:04
○ 2026-03-24 20:15:28
○ 2026-04-12 01:43:46

○A18.173.132.222026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-11 02:18:54
● 2026-03-14 15:59:18
○ 2026-03-14 19:36:56
○ 2026-04-12 01:43:46

○A18.173.132.42026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-11 02:18:54
● 2026-03-14 15:59:18
○ 2026-03-14 19:36:56
○ 2026-04-12 01:43:46

○A18.173.132.662026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-11 02:18:54
● 2026-03-14 15:59:18
○ 2026-03-14 19:36:56
○ 2026-04-12 01:43:46

○A18.173.132.992026-03-14 → 2026-03-14 · 4 obs

○ 2026-03-11 02:18:54
● 2026-03-14 15:59:18
○ 2026-03-14 19:36:56
○ 2026-04-12 01:43:46

○A18.245.218.1162026-03-10 → 2026-04-11 · 123 obs

● 2026-03-10 23:15:58
● 2026-03-11 02:18:54
○ 2026-03-14 15:59:18
○ 2026-03-14 19:36:56
● 2026-03-14 23:11:32
● 2026-03-15 03:01:10
○ 2026-03-15 17:54:30
● 2026-03-15 23:39:10
○ 2026-03-16 03:47:10
● 2026-03-16 05:00:46
○ 2026-03-16 07:08:36
○ 2026-03-17 02:49:44
● 2026-03-17 03:55:34
● 2026-03-17 04:57:22
○ 2026-03-17 07:34:26
● 2026-03-17 12:22:28
○ 2026-03-17 13:04:10
○ 2026-03-17 20:14:34
● 2026-03-17 22:39:34
○ 2026-03-18 00:13:50
● 2026-03-18 02:23:56
● 2026-03-18 13:20:30
○ 2026-03-18 14:46:24
● 2026-03-18 21:12:56
○ 2026-03-18 21:43:26
● 2026-03-19 04:04:50
● 2026-03-19 20:53:58
○ 2026-03-20 00:14:06
● 2026-03-20 01:59:30
○ 2026-03-20 08:00:24
● 2026-03-20 14:13:52
● 2026-03-22 15:35:04
○ 2026-03-23 00:13:36
● 2026-03-23 02:51:58
● 2026-03-23 11:42:06
○ 2026-03-23 19:14:40
○ 2026-03-24 00:35:18
● 2026-03-24 02:25:52
○ 2026-03-24 07:02:04
○ 2026-03-24 14:26:04
● 2026-03-24 20:15:28
○ 2026-03-24 20:46:20
● 2026-03-24 22:51:24
○ 2026-03-24 23:51:02
● 2026-03-25 01:01:18
● 2026-03-25 01:49:26
○ 2026-03-25 03:27:36
○ 2026-03-25 09:06:50
● 2026-03-25 09:53:42
○ 2026-03-25 11:06:54
● 2026-03-25 11:40:54
○ 2026-03-25 12:13:10
● 2026-03-25 13:13:50
○ 2026-03-25 16:06:10
○ 2026-03-25 22:31:24
● 2026-03-25 23:08:02
○ 2026-03-26 01:31:16
○ 2026-03-26 07:53:36
● 2026-03-26 11:41:20
○ 2026-03-26 12:13:08
● 2026-03-26 13:43:04
○ 2026-03-26 16:49:32
○ 2026-03-26 18:13:26
● 2026-03-26 19:24:32
● 2026-03-27 01:58:26
○ 2026-03-27 02:31:46
○ 2026-03-27 14:27:38
● 2026-03-27 14:58:56
○ 2026-03-28 00:12:54
○ 2026-03-28 00:43:04
● 2026-03-28 02:10:40
● 2026-03-28 02:58:40
○ 2026-03-28 07:01:38
● 2026-03-28 07:57:50
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○A18.245.218.372026-03-10 → 2026-04-11 · 123 obs

○A18.245.218.52026-03-10 → 2026-04-11 · 123 obs

○A18.245.218.962026-03-10 → 2026-04-11 · 123 obs

○A99.84.132.1162026-03-31 → 2026-04-05 · 22 obs

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○A99.84.132.1222026-03-31 → 2026-04-05 · 22 obs

○A99.84.132.142026-03-31 → 2026-04-05 · 22 obs

○A99.84.132.332026-03-31 → 2026-04-05 · 22 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...	-
instructure.com	ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org	1 record

✅ 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: 425ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`108.158.186.26, 108.158.186.9...`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-2.awsdns-00.com)

Analysis

IP Addresses

usc.instructure.com points to four IP numbers: 108.158.186.9, 108.158.186.26, 108.158.186.96 and 108.158.186.121.

Other host names, for instance www.mojcoek.mk, d1nwosp4zvblrv.cloudfront.net, d5i7d682opi2.cloudfront.net, hockeynsw.com.au and dzmgxsm1og5yv.cloudfront.net share IP numbers with usc.instructure.com.

usc.instructure.com - robtex.com