`optimizely.dev`

DNSSEC	⚠️ Not signed
NS	`carioca.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2614^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c214^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carioca.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2214^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carioca.ns.cloudflare.com`
		A	108.162.194.20^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	162.159.38.20^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	172.64.34.20^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
NS	`otto.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`otto.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c387^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`otto.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2387^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`otto.ns.cloudflare.com`
		A	108.162.195.135^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`otto.ns.cloudflare.com`
		A	162.159.44.135^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`otto.ns.cloudflare.com`
		A	172.64.35.135^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`otto.ns.cloudflare.com`
SOA	`carioca.ns.cloudflare.com`dns@cloudflare.com serial=2403688502

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

DNS History

2 records (2 active, 0 former)

●NScarioca.ns.cloudflare.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 19:42:04
● 2026-05-10 15:20:06

●NSotto.ns.cloudflare.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 19:42:04
● 2026-05-10 15:20:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...	-
optimizely.dev	otto.ns.cloudflare.com, carioca.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.135

NS records: otto.ns.cloudflare.com, carioca.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimizely.dev (unsigned zone)

⏱️ Timing

Total: 423ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`carioca.ns.cloudflare.com, otto.ns.cloudflare.com`
SOA	1	`carioca.ns.cloudflare.com dns.cloudflare`

Analysis

Name Servers

optimizely.dev is delegated to two name servers: carioca.ns.cloudflare.com and otto.ns.cloudflare.com.

optimizely.dev shares the same name server setup as episerver.co.za, jamwil.com, episerver.org, episerver.it and amplify.wiki.

optimizely.dev at least partially shares name servers with other domains, for instance vistamaria.org, mallats.com, amazone.co.uk, fortyacrecoop.us and 7goxbet.com.

Host names with six IP numbers:

carioca.ns.cloudflare.com points to 2606:4700:50::a29f:2614, 2803:f800:50::6ca2:c214, 2a06:98c1:50::ac40:2214, 108.162.194.20, 162.159.38.20 and 172.64.34.20.

otto.ns.cloudflare.com points to 2606:4700:58::a29f:2c87, 2803:f800:50::6ca2:c387, 2a06:98c1:50::ac40:2387, 108.162.195.135, 162.159.44.135 and 172.64.35.135.

optimizely.dev - robtex.com

optimizely.dev

dev