experiments.fitbit.com - dns.ninja

`experiments.fitbit.com`

CNAME	`cdn.optimizely.com`
DNSSEC	⚠️ Not signed
A	2606:4700::6812:4139^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:4239^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.65.57^{Cloudflare104.18.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.66.57^{Cloudflare104.18.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`erin.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c071^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`erin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2071^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`erin.ns.cloudflare.com`
		A	108.162.192.113^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	172.64.32.113^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	173.245.58.113^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
NS	`lee.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c181^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2181^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lee.ns.cloudflare.com`
		A	108.162.193.129^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	172.64.33.129^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	173.245.59.129^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.65.57, 104.18.66.57
		IPv6 hints	2606:4700::6812:4139, 2606:4700::6812:4239
SOA	`erin.ns.cloudflare.com`dns@cloudflare.com serial=2406014558

`fitbit.com`

	DNSSEC	⚠️ Not signed
	A	34.149.183.214^{🇺🇸 Google34.148.0.0/14}
	NS	`ns-cloud-c1.googledomains.com` ⭐
	NS	`ns-cloud-c2.googledomains.com`
	NS	`ns-cloud-c3.googledomains.com`
	NS	`ns-cloud-c4.googledomains.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`google-site-verification=tEQkcvcuVdA57tlIAsM46eEta36sDIakPZenSOLNVkY`
	TXT	`apple-domain-verification=52Sm0A7aDmBkPrCs`
	TXT	`_globalsign-domain-verification=9UioyPO0_F2Epyd3gGV5_VklXzoibTukD_jkbZPw43`
	TXT	`google-site-verification=7Cz3l28I3wSpNQsEvgbWzXSDpeFRx9a_vDYLnKl6wKE`
	TXT	`1515e6bddbdf460888c0eb11976b917c`
	TXT	`google-site-verification=UEPZ83OxuqAf4-OKukgWdquH_la9QtFIIBC3qESr1Pg`
	TXT	`google-site-verification=uUaI8PRbQduOXOU8-MnYKpgwCC96GCehelu_Ak-_NIM`
	TXT	`google-site-verification=4M90OLfRaLCXaOUitbRk_DSRDs0XIsQKYcOUvUv8RHI`
	TXT	`smartsheet-site-validation=UVRhNxt2fbi6C3dPzauGVz7zrokmC8fk`
	TXT	`teamviewer-sso-verification=f0be8088517c46e1a3f25187a80ea3be`
	TXT	`v=spf1 ip4:169.45.146.28 ip4:209.249.223.128/26 ip4:167.89.100.142 ip4:167.89...`
	TXT	`google-site-verification=Nqe7lKYcQ49E3Uriyi9C9lAXb5kpaNN_-ecDWGD6X4s`
	TXT	`google-site-verification=nBRrqbA3g89bLW0oB-bQ2Z2VlODeCpC84iQgKc2mr4s`
	TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCK6ngew4TYCesk5k2AOVH...`
	TXT	`google-site-verification=1EUreHjvfTPdM92mEDaBlh5Jf1hessrNpHEq55-IgyA`
	TXT	`google-site-verification=-zj5fbsDCwi0LB7tCuiRy63kbzz9FbEGbzIyC1quHRc`
	TXT	`MS=ms87091858`
	TXT	`google-site-verification=PkxmgWQ_adG11A7VvrV9A116snIoKoDrHETiqA3EENU`
	TXT	`google-site-verification=Y7GptzokuVshksNAWZED8PW3(0x533358)r5sfebeuMTalqhCo`
	SOA	`ns-cloud-c1.googledomains.com`cloud-dns-hostmaster@google.com serial=1

WOT: SAFE (93/100)
rank #2880 globally
rank #1506 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #4,030

Same first word

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DNS History

2 records (1 active, 1 former)

●CNAMEcdn.optimizely.com2026-04-06 → 2026-06-25 · 3 obs

○ 2020-01-26 09:55:56
● 2026-04-06 12:00:02
● 2026-06-25 07:36:12

○CNAMEexperiments.fitbit.com.cdn.cloudflare.net2020-01-26 → 2020-01-26 · 3 obs

● 2020-01-26 09:55:56
○ 2026-04-06 12:00:02
○ 2026-06-25 07:36:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
fitbit.com	ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.32.108

NS records: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fitbit.com (unsigned zone)

⏱️ Timing

Total: 298ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`cdn.optimizely.com`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-c1.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com...)

Analysis

IP Addresses

experiments.fitbit.com directs to four IP numbers, which are 104.18.65.57, 104.18.66.57, 2606:4700::6812:4139 and 2606:4700::6812:4239.

a8474790541.cdn.optimizely.com, a11298102552.cdn.optimizely.com, 7956882108.cdn.optimizely.com and two other host names share IP numbers with experiments.fitbit.com.

Name Servers

experiments.fitbit.com has two authoritative name servers — erin.ns.cloudflare.com and lee.ns.cloudflare.com.

experiments.fitbit.com uses the same name servers as several other domains — among them host-mp.com, fazo-s.tj, p13n-results-api.optimizely.com and two more.

The name servers of experiments.fitbit.com overlap at least partially with those of other domains — among them passagecl.com, yuku8.com, jasperfarms.net and two more.

The name servers ivan.ns.cloudflare.com, galilea.ns.cloudflare.com and ian.ns.cloudflare.com are commonly seen alongside these name servers.

Hostnames that resolve to 6 IP addresses:

erin.ns.cloudflare.com points to 108.162.192.113, 172.64.32.113, 173.245.58.113 and 3 other IP addresses.

lee.ns.cloudflare.com points to 108.162.193.129, 172.64.33.129, 173.245.59.129 and 3 other IP addresses.