`cluster31.test.instructure.com`

CNAME	`cluster1.test.instructure.com`
CNAME	`canvas-iad-test-c1-1750115574.us-east-1.elb.amazonaws.com`
DNSSEC	⚠️ Not signed
A	44.198.247.74^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
		PTR	`ec2-44-198-247-74.compute-1.amazonaws.com`
A	44.199.224.255^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
A	44.199.239.166^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}

`test.instructure.com`

	DNSSEC	⚠️ Not signed
	TXT	`google-site-verification=D08_RP8Zbi8FVxzuqHwEEGE62jenP0agJ1WD2EGCSiI`

WOT: UNKNOWN (66/100)
WOT: SAFE (87/100)

DNS History

6 records (1 active, 5 former)

○A52.20.50.32017-03-11 → 2017-03-11 · 3 obs

● 2017-03-11 18:37:30
○ 2026-04-06 06:50:38
○ 2026-04-06 06:50:40

○A52.206.158.2072017-03-11 → 2017-03-11 · 3 obs

● 2017-03-11 18:37:30
○ 2026-04-06 06:50:38
○ 2026-04-06 06:50:40

○A52.5.33.692017-03-11 → 2017-03-11 · 3 obs

● 2017-03-11 18:37:30
○ 2026-04-06 06:50:38
○ 2026-04-06 06:50:40

○A54.152.158.722017-03-11 → 2017-03-11 · 3 obs

● 2017-03-11 18:37:30
○ 2026-04-06 06:50:38
○ 2026-04-06 06:50:40

○CNAMEcanvastest-vpc-55618592.us-east-1.elb.amazonaws.com2017-03-11 → 2017-03-11 · 3 obs

● 2017-03-11 18:37:30
○ 2026-04-06 06:50:38
○ 2026-04-06 06:50:40

●CNAMEcluster1.test.instructure.com2017-03-11 → 2026-04-06 · 2 obs

● 2017-03-11 18:37:30
● 2026-04-06 06:50:40

🔍 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
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-
instructure.com	ns-1354.awsdns-41.org, ns-1799.awsdns-32.co.uk, ns-2.awsdns-00.com, ns-996.awsdns-60.net	-

✅ Authoritative Response

Server:205.251.192.2

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructure.com (unsigned zone)

⏱️ Timing

Total: 2498ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`cluster1.test.instructure.com`

📌 Glue Records Collected

Total: 1

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

Analysis

IP Addresses

cluster31.test.instructure.com points to three IP numbers: 44.198.247.74, 44.199.224.255 and 44.199.239.166.

Other host names, for instance canvas-iad-test-c1-1750115574.us-east-1.elb.amazonaws.com, share IP numbers with cluster31.test.instructure.com.

cluster31.test.instructure.com - robtex.com