chs.instructure.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`chs.instructure.com`

DNSSEC	⚠️ Not signed
A	3.161.213.47^{🇺🇸 Amazon3.161.208.0/21}
		PTR	`server-3-161-213-47.yul62.r.cloudfront.net`
A	3.161.213.61^{🇺🇸 Amazon3.161.208.0/21}
A	3.161.213.66^{🇺🇸 Amazon3.161.208.0/21}
A	3.161.213.72^{🇺🇸 Amazon3.161.208.0/21}

`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	`stripe-verification=B0532755BD8D4E0C6B601C3FCDB1DF203E57A8D2CDA9A7F9F84F8BD64...`
	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 #1481 globally
rank #791 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #2,043

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DNS History

66 records (4 active, 62 former)

○A108.138.103.1072026-07-18 → 2026-08-16 · 114 obs

● 2026-07-18 01:37:40
○ 2026-07-18 06:05:16
● 2026-07-18 07:25:12
○ 2026-07-20 18:32:50
● 2026-07-20 22:16:42
○ 2026-07-21 01:26:44
● 2026-07-21 08:58:20
○ 2026-07-22 09:49:48
● 2026-07-22 10:28:16
○ 2026-07-23 06:40:12
● 2026-07-23 12:41:06
○ 2026-07-24 04:54:52
● 2026-07-28 04:42:22
○ 2026-07-28 07:11:34
● 2026-07-30 21:03:50
○ 2026-07-31 12:26:38
● 2026-07-31 14:09:20
○ 2026-07-31 21:09:20
● 2026-07-31 22:40:34
○ 2026-08-01 19:17:36
● 2026-08-02 00:39:40
○ 2026-08-02 13:12:10
● 2026-08-02 17:15:16
○ 2026-08-03 00:05:18
● 2026-08-03 02:44:08
○ 2026-08-03 07:56:24
● 2026-08-03 10:05:32
○ 2026-08-03 16:05:22
● 2026-08-03 22:53:46
○ 2026-08-04 01:17:56
● 2026-08-04 05:29:06
○ 2026-08-04 06:07:34
● 2026-08-04 08:24:06
○ 2026-08-04 08:59:48
● 2026-08-04 12:44:38
○ 2026-08-04 14:17:18
● 2026-08-04 19:06:18
○ 2026-08-05 03:15:24
● 2026-08-05 16:10:04
○ 2026-08-05 20:06:26
● 2026-08-05 20:46:34
○ 2026-08-05 23:47:46
● 2026-08-06 00:37:50
○ 2026-08-06 07:53:50
● 2026-08-06 13:35:04
○ 2026-08-07 04:06:34
● 2026-08-07 05:20:24
○ 2026-08-07 08:06:54
● 2026-08-07 08:58:20
○ 2026-08-07 12:07:18
● 2026-08-07 16:01:30
○ 2026-08-07 23:08:48
● 2026-08-07 23:47:10
○ 2026-08-08 00:41:34
● 2026-08-08 04:39:44
○ 2026-08-08 08:06:50
● 2026-08-08 09:31:06
○ 2026-08-08 16:06:38
● 2026-08-08 17:03:22
○ 2026-08-08 17:59:36
● 2026-08-08 23:02:18
○ 2026-08-09 09:25:10
● 2026-08-09 10:24:42
○ 2026-08-09 16:06:32
● 2026-08-09 16:38:04
○ 2026-08-09 17:48:14
● 2026-08-09 19:10:38
○ 2026-08-10 08:05:26
● 2026-08-10 11:18:26
○ 2026-08-10 12:07:16
● 2026-08-10 12:57:24
○ 2026-08-10 23:10:56
● 2026-08-11 05:29:40
○ 2026-08-11 11:46:50
● 2026-08-11 18:36:38
○ 2026-08-11 19:45:12
● 2026-08-12 00:50:18
○ 2026-08-12 04:06:28
● 2026-08-12 06:38:14
○ 2026-08-12 12:07:06
● 2026-08-12 15:40:16
○ 2026-08-12 20:05:46
● 2026-08-12 21:38:10
○ 2026-08-12 23:59:46
● 2026-08-13 03:25:52
○ 2026-08-13 04:05:40
● 2026-08-13 07:16:32
○ 2026-08-13 11:53:18
● 2026-08-13 13:28:30
○ 2026-08-13 20:07:04
● 2026-08-13 21:02:40
○ 2026-08-14 00:06:08
● 2026-08-14 04:37:34
○ 2026-08-14 06:30:36
● 2026-08-14 09:18:14
○ 2026-08-14 16:06:40
● 2026-08-14 17:59:28
○ 2026-08-14 20:05:02
● 2026-08-14 20:49:18
○ 2026-08-15 00:05:46
● 2026-08-15 02:24:58
○ 2026-08-15 06:24:34
● 2026-08-15 07:56:24
○ 2026-08-15 09:47:20
● 2026-08-15 11:44:02
○ 2026-08-15 18:46:44
● 2026-08-15 19:50:14
○ 2026-08-16 03:34:52
● 2026-08-16 04:07:22
○ 2026-08-16 04:39:38
● 2026-08-16 05:49:52
○ 2026-08-16 22:10:22
● 2026-08-16 23:40:58
○ 2026-08-17 02:01:32

○A108.138.103.32026-07-18 → 2026-08-16 · 114 obs

○A108.138.103.572026-07-18 → 2026-08-16 · 114 obs

○A108.138.103.992026-07-18 → 2026-08-16 · 114 obs

○A108.158.186.1162026-07-25 → 2026-07-28 · 12 obs

○ 2026-07-24 04:54:52
● 2026-07-25 01:05:24
○ 2026-07-25 04:53:34
● 2026-07-25 23:35:04
○ 2026-07-26 16:54:00
● 2026-07-26 18:33:34
○ 2026-07-26 22:58:02
● 2026-07-27 03:36:20
○ 2026-07-27 15:06:50
● 2026-07-28 02:18:48
○ 2026-07-28 04:42:22
○ 2026-08-17 02:01:32

○A108.158.186.22026-07-25 → 2026-07-28 · 12 obs

○A108.158.186.342026-07-25 → 2026-07-28 · 12 obs

○A108.158.186.992026-07-25 → 2026-07-28 · 12 obs

○A13.33.109.1172026-08-02 → 2026-08-02 · 4 obs

○ 2026-08-02 13:12:10
● 2026-08-02 14:28:48
○ 2026-08-02 16:20:38
○ 2026-08-17 02:01:32

○A13.33.109.442026-08-02 → 2026-08-02 · 4 obs

○ 2026-08-02 13:12:10
● 2026-08-02 14:28:48
○ 2026-08-02 16:20:38
○ 2026-08-17 02:01:32

○A13.33.109.942026-08-02 → 2026-08-02 · 4 obs

○ 2026-08-02 13:12:10
● 2026-08-02 14:28:48
○ 2026-08-02 16:20:38
○ 2026-08-17 02:01:32

○A13.33.109.972026-08-02 → 2026-08-02 · 4 obs

○ 2026-08-02 13:12:10
● 2026-08-02 14:28:48
○ 2026-08-02 16:20:38
○ 2026-08-17 02:01:32

○A13.33.131.1272026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 06:40:12
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 04:53:34
○ 2026-07-25 18:39:56
○ 2026-08-17 02:01:32

○A13.33.131.272026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 06:40:12
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 04:53:34
○ 2026-07-25 18:39:56
○ 2026-08-17 02:01:32

○A13.33.131.382026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 06:40:12
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 04:53:34
○ 2026-07-25 18:39:56
○ 2026-08-17 02:01:32

○A13.33.131.772026-07-23 → 2026-07-25 · 6 obs

○ 2026-07-23 06:40:12
● 2026-07-23 09:00:42
○ 2026-07-23 10:21:12
● 2026-07-25 04:53:34
○ 2026-07-25 18:39:56
○ 2026-08-17 02:01:32

○A13.33.235.1262026-08-05 → 2026-08-12 · 24 obs

○ 2026-08-05 03:15:24
● 2026-08-05 12:06:44
○ 2026-08-05 16:10:04
● 2026-08-07 08:06:54
○ 2026-08-07 08:58:20
● 2026-08-07 12:07:18
○ 2026-08-07 15:25:14
● 2026-08-08 00:41:34
○ 2026-08-08 04:39:44
● 2026-08-08 08:06:50
○ 2026-08-08 08:56:58
● 2026-08-08 16:06:38
○ 2026-08-08 17:03:22
● 2026-08-09 16:06:32
○ 2026-08-09 16:38:04
● 2026-08-11 11:46:50
○ 2026-08-11 16:43:04
● 2026-08-11 19:45:12
○ 2026-08-12 00:50:18
● 2026-08-12 04:06:28
○ 2026-08-12 05:49:54
● 2026-08-12 12:07:06
○ 2026-08-12 14:45:20
○ 2026-08-17 02:01:32

○A13.33.235.662026-08-05 → 2026-08-12 · 24 obs

○A13.33.235.752026-08-05 → 2026-08-12 · 24 obs

○A13.33.235.882026-08-05 → 2026-08-12 · 24 obs

○A13.35.107.302026-07-18 → 2026-07-31 · 24 obs

○ 2026-07-18 01:37:40
● 2026-07-18 06:05:16
○ 2026-07-18 07:25:12
● 2026-07-20 19:22:08
○ 2026-07-20 22:16:42
● 2026-07-22 09:49:48
○ 2026-07-22 10:28:16
● 2026-07-26 16:54:00
○ 2026-07-26 18:33:34
● 2026-07-26 22:58:02
○ 2026-07-27 03:36:20
● 2026-07-28 07:11:34
○ 2026-07-28 13:45:14
● 2026-07-29 07:13:22
○ 2026-07-29 09:10:30
● 2026-07-30 02:01:32
○ 2026-07-30 05:00:22
● 2026-07-30 07:43:38
○ 2026-07-30 09:09:34
● 2026-07-30 15:10:38
○ 2026-07-30 21:03:50
● 2026-07-31 21:09:20
○ 2026-07-31 22:40:34
○ 2026-08-17 02:01:32

○A13.35.107.492026-07-18 → 2026-07-31 · 24 obs

○A13.35.107.542026-07-18 → 2026-07-31 · 24 obs

○A13.35.107.662026-07-18 → 2026-07-31 · 24 obs

○A18.160.18.1022026-08-03 → 2026-08-16 · 32 obs

○ 2026-08-03 10:05:32
● 2026-08-03 16:05:22
○ 2026-08-03 16:51:18
● 2026-08-05 23:47:46
○ 2026-08-06 00:37:50
● 2026-08-07 15:25:14
○ 2026-08-07 16:01:30
● 2026-08-07 23:08:48
○ 2026-08-07 23:47:10
● 2026-08-08 08:56:58
○ 2026-08-08 09:31:06
● 2026-08-09 17:48:14
○ 2026-08-09 19:10:38
● 2026-08-11 16:43:04
○ 2026-08-11 18:36:38
● 2026-08-12 05:49:54
○ 2026-08-12 06:38:14
● 2026-08-12 14:45:20
○ 2026-08-12 15:40:16
● 2026-08-12 21:07:48
○ 2026-08-12 21:38:10
● 2026-08-12 23:59:46
○ 2026-08-13 00:41:28
● 2026-08-13 11:53:18
○ 2026-08-13 13:28:30
● 2026-08-14 06:30:36
○ 2026-08-14 09:18:14
● 2026-08-15 18:46:44
○ 2026-08-15 19:50:14
● 2026-08-16 22:10:22
○ 2026-08-16 23:40:58
○ 2026-08-17 02:01:32

○A18.160.18.112026-08-03 → 2026-08-16 · 32 obs

○A18.160.18.1192026-08-03 → 2026-08-16 · 32 obs

○A18.160.18.1262026-08-03 → 2026-08-16 · 32 obs

○A18.165.122.1182026-08-07 → 2026-08-14 · 10 obs

○ 2026-08-06 13:35:04
● 2026-08-07 04:06:34
○ 2026-08-07 05:20:24
● 2026-08-13 00:41:28
○ 2026-08-13 03:25:52
● 2026-08-13 04:05:40
○ 2026-08-13 07:16:32
● 2026-08-14 04:05:22
○ 2026-08-14 04:37:34
○ 2026-08-17 02:01:32

○A18.165.122.562026-08-07 → 2026-08-14 · 10 obs

○A18.165.122.752026-08-07 → 2026-08-14 · 10 obs

○A18.165.122.942026-08-07 → 2026-08-14 · 10 obs

○A18.173.187.502026-08-14 → 2026-08-14 · 4 obs

○ 2026-08-14 09:18:14
● 2026-08-14 16:06:40
○ 2026-08-14 17:59:28
○ 2026-08-17 02:01:32

○A18.173.187.622026-08-14 → 2026-08-14 · 4 obs

○ 2026-08-14 09:18:14
● 2026-08-14 16:06:40
○ 2026-08-14 17:59:28
○ 2026-08-17 02:01:32

○A18.173.187.762026-08-14 → 2026-08-14 · 4 obs

○ 2026-08-14 09:18:14
● 2026-08-14 16:06:40
○ 2026-08-14 17:59:28
○ 2026-08-17 02:01:32

○A18.173.187.992026-08-14 → 2026-08-14 · 4 obs

○ 2026-08-14 09:18:14
● 2026-08-14 16:06:40
○ 2026-08-14 17:59:28
○ 2026-08-17 02:01:32

○A18.64.155.1012026-07-28 → 2026-07-30 · 8 obs

○ 2026-07-28 07:11:34
● 2026-07-28 13:45:14
○ 2026-07-29 07:13:22
● 2026-07-29 09:10:30
○ 2026-07-30 02:01:32
● 2026-07-30 11:37:00
○ 2026-07-30 15:10:38
○ 2026-08-17 02:01:32

○A18.64.155.322026-07-28 → 2026-07-30 · 8 obs

○ 2026-07-28 07:11:34
● 2026-07-28 13:45:14
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○A18.64.155.352026-07-28 → 2026-07-30 · 8 obs

○ 2026-07-28 07:11:34
● 2026-07-28 13:45:14
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○A18.64.155.492026-07-28 → 2026-07-30 · 8 obs

○ 2026-07-28 07:11:34
● 2026-07-28 13:45:14
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●A3.161.213.472026-08-17 → 2026-08-17 · 2 obs

○ 2026-08-16 23:40:58
● 2026-08-17 02:01:32

●A3.161.213.612026-08-17 → 2026-08-17 · 2 obs

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● 2026-08-17 02:01:32

●A3.161.213.662026-08-17 → 2026-08-17 · 2 obs

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● 2026-08-17 02:01:32

●A3.161.213.722026-08-17 → 2026-08-17 · 2 obs

○ 2026-08-16 23:40:58
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○A3.165.113.1062026-07-25 → 2026-07-28 · 6 obs

○ 2026-07-25 04:53:34
● 2026-07-25 18:39:56
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○A3.165.113.142026-07-25 → 2026-07-28 · 6 obs

○ 2026-07-25 04:53:34
● 2026-07-25 18:39:56
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○ 2026-08-17 02:01:32

○A3.165.113.822026-07-25 → 2026-07-28 · 6 obs

○ 2026-07-25 04:53:34
● 2026-07-25 18:39:56
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● 2026-07-28 01:27:36
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○ 2026-08-17 02:01:32

○A3.165.113.962026-07-25 → 2026-07-28 · 6 obs

○ 2026-07-25 04:53:34
● 2026-07-25 18:39:56
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● 2026-07-28 01:27:36
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○A3.167.99.172026-08-15 → 2026-08-15 · 4 obs

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○A3.167.99.192026-08-15 → 2026-08-15 · 4 obs

○ 2026-08-15 09:47:20
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○A3.167.99.282026-08-15 → 2026-08-15 · 4 obs

○ 2026-08-15 09:47:20
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○A3.167.99.82026-08-15 → 2026-08-15 · 4 obs

○ 2026-08-15 09:47:20
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○A3.171.38.1062026-08-15 → 2026-08-15 · 6 obs

○ 2026-08-15 02:24:58
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○A3.171.38.612026-08-15 → 2026-08-15 · 6 obs

○ 2026-08-15 02:24:58
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○A3.171.38.92026-08-15 → 2026-08-15 · 6 obs

○ 2026-08-15 02:24:58
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○A3.171.38.972026-08-15 → 2026-08-15 · 6 obs

○ 2026-08-15 02:24:58
● 2026-08-15 06:24:34
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○A99.84.252.232026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 03:36:20
● 2026-07-27 15:06:50
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○A99.84.252.522026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 03:36:20
● 2026-07-27 15:06:50
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○A99.84.252.822026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 03:36:20
● 2026-07-27 15:06:50
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○A99.84.252.962026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 03:36:20
● 2026-07-27 15:06:50
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○ 2026-08-17 02:01:32

○A99.84.41.1012026-07-20 → 2026-08-16 · 68 obs

○ 2026-07-18 07:25:12
● 2026-07-20 18:32:50
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● 2026-07-21 01:26:44
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● 2026-08-15 00:05:46
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● 2026-08-16 03:34:52
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● 2026-08-16 04:39:38
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○ 2026-08-17 02:01:32

○A99.84.41.152026-07-20 → 2026-08-16 · 68 obs

○A99.84.41.362026-07-20 → 2026-08-16 · 68 obs

○A99.84.41.722026-07-20 → 2026-08-16 · 68 obs

○CNAMEcluster54.instructure.com2017-06-23 → 2017-06-23 · 3 obs

● 2017-06-23 22:47:44
○ 2026-03-03 03:40:54
○ 2026-08-17 02:01:32

○CNAMEcluster77.instructure.com2026-03-03 → 2026-03-03 · 4 obs

○ 2017-06-23 22:47:44
● 2026-03-03 03:40:54
○ 2026-07-18 01:37:40
○ 2026-08-17 02:01:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, f.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:205.251.199.7

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: 664ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.161.213.61, 3.161.213.47...`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

chs.instructure.com has four IP addresses: 3.161.213.47, 3.161.213.61, 3.161.213.66 and 3.161.213.72.

imc-corp.co.jp, nevertoolate2019.com, universalpediatricsinc.com plus two other host names have IP numbers in common with chs.instructure.com.