`wdmcs.instructure.com`

DNSSEC	⚠️ Not signed
A	99.86.12.2
		PTR	`server-99-86-12-2.lhr95.r.cloudfront.net`
A	99.86.12.20
A	99.86.12.88
A	99.86.12.129

`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 #1370 globally
rank #738 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #1,305

Same first word

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cdswm.com

mwcds.ie

DNS History

45 records (4 active, 41 former)

○A108.158.186.1162026-05-06 → 2026-05-10 · 12 obs

○ 2026-05-06 04:18:12
● 2026-05-06 09:07:52
○ 2026-05-06 10:19:00
● 2026-05-06 14:40:44
○ 2026-05-06 15:19:46
○ 2026-05-09 23:48:02
● 2026-05-10 01:02:24
○ 2026-05-10 01:39:00
○ 2026-05-10 20:12:52
● 2026-05-10 20:47:24
○ 2026-05-10 21:44:08
○ 2026-06-09 05:44:48

○A108.158.186.22026-05-06 → 2026-05-10 · 12 obs

○A108.158.186.342026-05-06 → 2026-05-10 · 12 obs

○A108.158.186.992026-05-06 → 2026-05-10 · 12 obs

○A13.224.252.1002026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 09:30:22
● 2026-05-26 12:05:30
○ 2026-05-26 13:55:24
○ 2026-06-09 05:44:48

○A13.224.252.1132026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 09:30:22
● 2026-05-26 12:05:30
○ 2026-05-26 13:55:24
○ 2026-06-09 05:44:48

○A13.224.252.1172026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 09:30:22
● 2026-05-26 12:05:30
○ 2026-05-26 13:55:24
○ 2026-06-09 05:44:48

○A13.224.252.812026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 09:30:22
● 2026-05-26 12:05:30
○ 2026-05-26 13:55:24
○ 2026-06-09 05:44:48

○A13.227.110.22026-05-03 → 2026-06-06 · 27 obs

● 2026-05-03 00:01:26
○ 2026-05-03 14:40:26
○ 2026-05-19 04:36:54
● 2026-05-19 09:17:32
○ 2026-05-20 04:45:10
○ 2026-05-24 23:29:22
● 2026-05-25 02:50:28
○ 2026-05-25 04:49:26
○ 2026-05-28 10:47:50
● 2026-05-29 15:36:56
○ 2026-05-30 13:20:52
● 2026-05-31 16:51:48
● 2026-06-01 09:46:18
○ 2026-06-02 01:39:04
● 2026-06-02 06:11:10
● 2026-06-02 11:08:44
○ 2026-06-02 14:08:30
● 2026-06-02 23:31:32
● 2026-06-04 06:30:44
○ 2026-06-05 03:39:46
○ 2026-06-05 06:49:50
● 2026-06-05 08:57:54
○ 2026-06-05 15:13:54
● 2026-06-05 19:50:58
● 2026-06-06 23:10:36
○ 2026-06-07 22:13:08
○ 2026-06-09 05:44:48

○A13.227.110.272026-05-03 → 2026-06-06 · 27 obs

○A13.227.110.432026-05-03 → 2026-06-06 · 27 obs

○A13.227.110.772026-05-03 → 2026-06-06 · 27 obs

○A13.33.109.1172026-05-03 → 2026-05-16 · 16 obs

○ 2026-05-03 22:17:12
● 2026-05-03 22:55:40
○ 2026-05-03 23:59:52
○ 2026-05-04 22:18:52
● 2026-05-05 00:30:02
○ 2026-05-05 02:41:44
○ 2026-05-08 16:49:34
● 2026-05-09 00:34:36
○ 2026-05-09 02:58:38
○ 2026-05-11 00:47:02
● 2026-05-11 03:47:36
○ 2026-05-11 04:21:50
○ 2026-05-16 08:33:16
● 2026-05-16 12:52:10
○ 2026-05-16 14:15:56
○ 2026-06-09 05:44:48

○A13.33.109.442026-05-03 → 2026-05-16 · 16 obs

○A13.33.109.942026-05-03 → 2026-05-16 · 16 obs

○A13.33.109.972026-05-03 → 2026-05-16 · 16 obs

○A18.154.110.1102026-05-20 → 2026-06-07 · 35 obs

○ 2026-05-19 09:17:32
● 2026-05-20 04:45:10
○ 2026-05-21 09:05:26
● 2026-05-21 10:45:32
○ 2026-05-21 18:49:46
● 2026-05-21 20:18:50
● 2026-05-21 22:36:04
○ 2026-05-22 05:09:44
● 2026-05-22 06:36:54
● 2026-05-24 23:29:22
○ 2026-05-25 02:50:28
● 2026-05-25 04:49:26
● 2026-05-25 16:52:08
○ 2026-05-25 20:46:44
● 2026-05-25 21:56:38
● 2026-05-26 09:30:22
○ 2026-05-26 12:05:30
● 2026-05-26 13:55:24
● 2026-05-28 10:47:50
○ 2026-05-29 15:36:56
● 2026-05-30 13:20:52
○ 2026-05-31 16:51:48
○ 2026-06-02 11:08:44
● 2026-06-02 14:08:30
○ 2026-06-02 23:31:32
○ 2026-06-04 06:30:44
● 2026-06-05 03:39:46
○ 2026-06-05 06:49:50
○ 2026-06-05 08:57:54
● 2026-06-05 15:13:54
○ 2026-06-05 19:50:58
○ 2026-06-06 23:10:36
● 2026-06-07 22:13:08
○ 2026-06-08 09:57:12
○ 2026-06-09 05:44:48

○A18.154.110.32026-05-20 → 2026-06-07 · 35 obs

○A18.154.110.492026-05-20 → 2026-06-07 · 35 obs

○A18.154.110.522026-05-20 → 2026-06-07 · 35 obs

○A18.160.18.1022026-05-21 → 2026-05-25 · 10 obs

○ 2026-05-21 10:45:32
● 2026-05-21 18:49:46
○ 2026-05-21 20:18:50
○ 2026-05-21 22:36:04
● 2026-05-22 05:09:44
○ 2026-05-22 06:36:54
○ 2026-05-25 16:52:08
● 2026-05-25 20:46:44
○ 2026-05-25 21:56:38
○ 2026-06-09 05:44:48

○A18.160.18.112026-05-21 → 2026-05-25 · 10 obs

○A18.160.18.1192026-05-21 → 2026-05-25 · 10 obs

○A18.160.18.1262026-05-21 → 2026-05-25 · 10 obs

○A18.239.168.112026-05-08 → 2026-05-11 · 7 obs

○ 2026-05-07 20:46:16
● 2026-05-08 00:30:16
○ 2026-05-08 01:54:28
○ 2026-05-11 04:21:50
● 2026-05-11 05:34:18
○ 2026-05-11 06:25:32
○ 2026-06-09 05:44:48

○A18.239.168.1252026-05-08 → 2026-05-11 · 7 obs

○ 2026-05-07 20:46:16
● 2026-05-08 00:30:16
○ 2026-05-08 01:54:28
○ 2026-05-11 04:21:50
● 2026-05-11 05:34:18
○ 2026-05-11 06:25:32
○ 2026-06-09 05:44:48

○A18.239.168.862026-05-08 → 2026-05-11 · 7 obs

○ 2026-05-07 20:46:16
● 2026-05-08 00:30:16
○ 2026-05-08 01:54:28
○ 2026-05-11 04:21:50
● 2026-05-11 05:34:18
○ 2026-05-11 06:25:32
○ 2026-06-09 05:44:48

○A18.239.168.882026-05-08 → 2026-05-11 · 7 obs

○ 2026-05-07 20:46:16
● 2026-05-08 00:30:16
○ 2026-05-08 01:54:28
○ 2026-05-11 04:21:50
● 2026-05-11 05:34:18
○ 2026-05-11 06:25:32
○ 2026-06-09 05:44:48

○A3.167.99.172026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-20 04:45:10
● 2026-05-21 09:05:26
○ 2026-05-21 10:45:32
○ 2026-06-09 05:44:48

○A3.167.99.192026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-20 04:45:10
● 2026-05-21 09:05:26
○ 2026-05-21 10:45:32
○ 2026-06-09 05:44:48

○A3.167.99.282026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-20 04:45:10
● 2026-05-21 09:05:26
○ 2026-05-21 10:45:32
○ 2026-06-09 05:44:48

○A3.167.99.82026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-20 04:45:10
● 2026-05-21 09:05:26
○ 2026-05-21 10:45:32
○ 2026-06-09 05:44:48

○A3.170.229.1062026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 09:46:18
● 2026-06-02 01:39:04
○ 2026-06-02 06:11:10
○ 2026-06-09 05:44:48

○A3.170.229.392026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 09:46:18
● 2026-06-02 01:39:04
○ 2026-06-02 06:11:10
○ 2026-06-09 05:44:48

○A3.170.229.582026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 09:46:18
● 2026-06-02 01:39:04
○ 2026-06-02 06:11:10
○ 2026-06-09 05:44:48

○A3.170.229.972026-06-02 → 2026-06-02 · 4 obs

○ 2026-06-01 09:46:18
● 2026-06-02 01:39:04
○ 2026-06-02 06:11:10
○ 2026-06-09 05:44:48

○A54.192.151.1092026-06-05 → 2026-06-05 · 4 obs

○ 2026-06-05 03:39:46
● 2026-06-05 06:49:50
○ 2026-06-05 08:57:54
○ 2026-06-09 05:44:48

○A54.192.151.1262026-06-05 → 2026-06-05 · 4 obs

○ 2026-06-05 03:39:46
● 2026-06-05 06:49:50
○ 2026-06-05 08:57:54
○ 2026-06-09 05:44:48

○A54.192.151.762026-06-05 → 2026-06-05 · 4 obs

○ 2026-06-05 03:39:46
● 2026-06-05 06:49:50
○ 2026-06-05 08:57:54
○ 2026-06-09 05:44:48

○A54.192.151.952026-06-05 → 2026-06-05 · 4 obs

○ 2026-06-05 03:39:46
● 2026-06-05 06:49:50
○ 2026-06-05 08:57:54
○ 2026-06-09 05:44:48

●A99.86.12.1292026-05-03 → 2026-06-09 · 38 obs

○ 2026-05-03 00:01:26
● 2026-05-03 14:40:26
● 2026-05-03 22:17:12
○ 2026-05-03 22:55:40
● 2026-05-03 23:59:52
● 2026-05-04 22:18:52
○ 2026-05-05 00:30:02
● 2026-05-05 02:41:44
● 2026-05-06 04:18:12
○ 2026-05-06 09:07:52
● 2026-05-06 10:19:00
○ 2026-05-06 14:40:44
● 2026-05-06 15:19:46
● 2026-05-07 20:46:16
○ 2026-05-08 00:30:16
● 2026-05-08 01:54:28
● 2026-05-08 16:49:34
○ 2026-05-09 00:34:36
● 2026-05-09 02:58:38
● 2026-05-09 23:48:02
○ 2026-05-10 01:02:24
● 2026-05-10 01:39:00
● 2026-05-10 20:12:52
○ 2026-05-10 20:47:24
● 2026-05-10 21:44:08
● 2026-05-11 00:47:02
○ 2026-05-11 03:47:36
● 2026-05-11 04:21:50
○ 2026-05-11 05:34:18
● 2026-05-11 06:25:32
● 2026-05-16 08:33:16
○ 2026-05-16 12:52:10
● 2026-05-16 14:15:56
● 2026-05-19 04:36:54
○ 2026-05-19 09:17:32
○ 2026-06-07 22:13:08
● 2026-06-08 09:57:12
● 2026-06-09 05:44:48

●A99.86.12.22026-05-03 → 2026-06-09 · 38 obs

●A99.86.12.202026-05-03 → 2026-06-09 · 38 obs

●A99.86.12.882026-05-03 → 2026-06-09 · 38 obs

○CNAMEcluster54.instructure.com2018-01-17 → 2018-01-17 · 3 obs

● 2018-01-17 15:38:28
○ 2026-05-03 00:01:26
○ 2026-06-09 05:44:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, k.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: 269ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.227.110.77, 13.227.110.27...`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

wdmcs.instructure.com points to 4 IP addresses — 99.86.12.2, 99.86.12.20, 99.86.12.88 and 99.86.12.129.

abfctugaaaaaaaamayp5js3kl63x2.s3-dub-2.cf.dash.row.aiv-cdn.net, dishbymakro.com, d1vz7b1qrtjefy.cloudfront.net plus two other host names have IP numbers in common with wdmcs.instructure.com.

wdmcs.instructure.com - robtex.com