`ws.cmp.optimizely.com`

CNAME	`ws-aws.cmp.optimizely.com`
CNAME	`d32zkcsfxac5e7.cloudfront.net`
DNSSEC	⚠️ Not signed
A	2600:9000:27a7:200:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:400:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:8c00:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:9c00:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:c200:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:c800:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:d400:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	2600:9000:27a7:f600:1b:4141:13c0:93a1^{🇺🇸 Amazon2600:9000:27a7::/48}
A	3.166.181.17^{🇺🇸 Amazon3.166.176.0/21}
A	3.166.181.27^{🇺🇸 Amazon3.166.176.0/21}
A	3.166.181.36^{🇺🇸 Amazon3.166.176.0/21}
A	3.166.181.59^{🇺🇸 Amazon3.166.176.0/21}
NS	`ns-1350.awsdns-40.org` ⭐
		A	2600:9000:5305:4600::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1350.awsdns-40.org`
		A	205.251.197.70^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1350.awsdns-40.org`
NS	`ns-1613.awsdns-09.co.uk`
		A	2600:9000:5306:4d00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1613.awsdns-09.co.uk`
		A	205.251.198.77^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1613.awsdns-09.co.uk`
NS	`ns-224.awsdns-28.com`
		A	2600:9000:5300:e000::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-224.awsdns-28.com`
		A	205.251.192.224^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-224.awsdns-28.com`
NS	`ns-914.awsdns-50.net`
		A	2600:9000:5303:9200::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-914.awsdns-50.net`
		A	205.251.195.146^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-914.awsdns-50.net`
HTTPS	HTTP/2
SOA	`ns-1350.awsdns-40.org`awsdns-hostmaster@amazon.com serial=1

`cmp.optimizely.com`

	DNSSEC	⚠️ Not signed
	A	3.164.6.29^{🇺🇸 Amazon3.164.4.0/22}
	A	3.164.6.43^{🇺🇸 Amazon3.164.4.0/22}
	A	3.164.6.49^{🇺🇸 Amazon3.164.4.0/22}
	A	3.164.6.79^{🇺🇸 Amazon3.164.4.0/22}
	NS	`ns-1130.awsdns-13.org` ⭐
	NS	`ns-1774.awsdns-29.co.uk`
	NS	`ns-462.awsdns-57.com`
	NS	`ns-737.awsdns-28.net`
	TXT	`_i1owvlkdf3a7t5swcq5l44hnxqhxx8d`
	SOA	`ns-1130.awsdns-13.org`awsdns-hostmaster@amazon.com serial=1

⚠️ On DNS blocklist: ultimate
WOT: SAFE (71/100)
⚠️ On DNS blocklist: ultimate
WOT: SAFE (79/100)

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DNS History

1 record (1 active, 0 former)

●CNAMEws-aws.cmp.optimizely.com2026-02-24 → 2026-04-15 · 2 obs

● 2026-02-24 06:54:42
● 2026-04-15 18:54:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
optimizely.com	doug.ns.cloudflare.com, harmony.ns.cloudflare.com	12 records
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-
cmp.optimizely.com	ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net	-

✅ Authoritative Response

Server:205.251.193.206

NS records: ns-1130.awsdns-13.org, ns-1774.awsdns-29.co.uk, ns-462.awsdns-57.com, ns-737.awsdns-28.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cmp.optimizely.com (unsigned zone)

⏱️ Timing

Total: 993ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ws-aws.cmp.optimizely.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (doug.ns.cloudflare.com, doug.ns.cloudflare.com, doug.ns.cloudflare.com...)

Analysis

IP Addresses

Twelve IP numbers are pointed to by ws.cmp.optimizely.com: 2600:9000:27a7:200:1b:4141:13c0:93a1, 2600:9000:27a7:400:1b:4141:13c0:93a1, 2600:9000:27a7:8c00:1b:4141:13c0:93a1, 2600:9000:27a7:9c00:1b:4141:13c0:93a1, 2600:9000:27a7:c200:1b:4141:13c0:93a1, 2600:9000:27a7:c800:1b:4141:13c0:93a1, 2600:9000:27a7:d400:1b:4141:13c0:93a1, 2600:9000:27a7:f600:1b:4141:13c0:93a1, 3.166.181.17, 3.166.181.27, 3.166.181.36 and 3.166.181.59.

Other host names, for instance ambatli.co.il, www.625pow.or.kr, gixo.com, mamdoctor.com and help-61-4-84.kiplot.com share IP numbers with ws.cmp.optimizely.com.

Name Servers

ws.cmp.optimizely.com is delegated to four name servers: ns-224.awsdns-28.com, ns-914.awsdns-50.net, ns-1350.awsdns-40.org and ns-1613.awsdns-09.co.uk.

ws.cmp.optimizely.com at least partially shares name servers with other domains, for instance jsystem.jp, inkscreen.net, sageenergy.ca, ecards.co.uk and portal.si.

Host names with two IP numbers:

ns-224.awsdns-28.com points to: 2600:9000:5300:e000::1 and 205.251.192.224.

ns-914.awsdns-50.net points to: 2600:9000:5303:9200::1 and 205.251.195.146.

ns-1350.awsdns-40.org points to: 2600:9000:5305:4600::1 and 205.251.197.70.

ns-1613.awsdns-09.co.uk points to: 2600:9000:5306:4d00::1 and 205.251.198.77.

ws.cmp.optimizely.com - robtex.com