ROBTEX.COM - cluster21.instructure.com

Search for IP or hostnames:

cluster21.instructure.com checked at 2025-12-05T12:55:31.944Z 3490ms 39/39/39 100% R:8 allDone:true timedOut:false

`cluster21.instructure.com`

	CNAME	`canvas-iad-prod-c21-321681666.us-east-1.elb.amazonaws.com`
	A	3.222.240.209^{🇺🇸 Amazon}
			PTR	`ec2-3-222-240-209.compute-1.amazonaws.com`
	A	23.21.148.35^{🇺🇸 Amazon}
			PTR	`ec2-23-21-148-35.compute-1.amazonaws.com`
	A	35.153.243.134^{🇺🇸 Amazon}
			PTR	`ec2-35-153-243-134.compute-1.amazonaws.com`

`instructure.com`

	NS	`ns-2.awsdns-00.com`
	MX	`aspmx2.googlemail.com`
	MX	`aspmx3.googlemail.com`
	NS	`ns-996.awsdns-60.net`
	NS	`ns-1354.awsdns-41.org`
	MX	`aspmx.l.google.com`
	NS	`ns-1799.awsdns-32.co.uk`
	MX	`alt1.aspmx.l.google.com`
	MX	`alt2.aspmx.l.google.com`
	A	151.101.2.132^{🇺🇸 Fastly}
	A	151.101.66.132^{🇺🇸 Fastly}

rank #1219 globally
rank #689 in the tld

AI analysis

cluster21.instructure.com points to three IPs: 3.222.240.209, 23.21.148.35 and 35.153.243.134.

Other host names, for instance ec2-23-21-148-35.compute-1.amazonaws.com, alb-webapp-v00-2144697106.us-east-1.elb.amazonaws.com and canvas-iad-prod-c21-321681666.us-east-1.elb.amazonaws.com share IP numbers with cluster21.instructure.com.