`react.dev`

DNSSEC	⚠️ Not signed
A	66.33.60.194^{🇺🇸 Amazon66.33.60.0/24 EC2 Prefix}
A	76.76.21.93^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`edna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`edna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`edna.ns.cloudflare.com`
		A	108.162.192.109^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	172.64.32.109^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	173.245.58.109^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
NS	`norm.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b86^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c186^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`norm.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2186^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`norm.ns.cloudflare.com`
		A	108.162.193.134^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	172.64.33.134^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	173.245.59.134^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
TXT	`google-site-verification=a5RC7LuUuYSWBrPBwybnA2bPZSh4aYEDbYEg7O4t9l4`
SOA	`edna.ns.cloudflare.com`dns@cloudflare.com serial=2402371057

`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

rank #2194 globally
rank #5 in the tld
This domain, "react.dev", is associated with the React JavaScript library. It is a platform that provides resources, documentation, and tutorials for developers using or learning React, a popular JavaScript library for building user interfaces, primarily for single-page applications. It's used for handling the view layer in web and mobile apps. React allows developers to create reusable UI components. React was first created by Facebook but now it's maintained by Facebook and a community of individual developers and companies.📈 Tranco rank: #8,805
🔒 HSTS Preload (+subdomains)

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DNS History

18 records (4 active, 14 former)

●NSedna.ns.cloudflare.com2026-02-19 → 2026-04-24 · 2 obs

● 2026-02-19 18:19:10
● 2026-04-24 03:52:30

●NSnorm.ns.cloudflare.com2026-02-19 → 2026-04-24 · 2 obs

● 2026-02-19 18:19:10
● 2026-04-24 03:52:30

○A66.33.60.1292026-03-15 → 2026-04-18 · 24 obs

○ 2026-03-14 23:34:36
● 2026-03-15 02:46:22
○ 2026-03-15 04:46:28
○ 2026-03-17 05:36:48
● 2026-03-17 11:54:42
● 2026-03-17 13:17:36
○ 2026-03-18 01:58:56
○ 2026-03-22 05:33:16
● 2026-03-22 09:00:32
○ 2026-03-22 15:37:04
○ 2026-03-23 14:52:16
● 2026-03-24 11:57:58
● 2026-03-24 19:59:50
○ 2026-03-25 11:09:12
○ 2026-03-27 05:45:48
● 2026-03-28 08:41:02
○ 2026-03-28 12:30:08
○ 2026-04-08 14:04:26
● 2026-04-08 17:24:00
○ 2026-04-10 02:45:12
○ 2026-04-16 22:28:56
● 2026-04-18 01:52:56
○ 2026-04-18 13:48:02
○ 2026-04-24 03:52:30

○A66.33.60.1302026-02-19 → 2026-04-16 · 30 obs

● 2026-02-19 18:19:10
○ 2026-02-20 03:46:18
○ 2026-02-23 15:45:16
● 2026-03-06 03:47:24
○ 2026-03-06 14:58:16
● 2026-03-11 18:35:22
○ 2026-03-12 04:30:00
○ 2026-03-13 03:45:34
● 2026-03-14 08:57:52
○ 2026-03-14 14:43:40
○ 2026-03-14 18:27:06
● 2026-03-14 19:53:46
○ 2026-03-14 22:27:42
○ 2026-03-15 06:49:08
● 2026-03-15 14:02:26
○ 2026-03-16 02:59:22
○ 2026-03-16 20:34:16
● 2026-03-17 03:33:44
● 2026-03-17 05:36:48
○ 2026-03-17 11:54:42
○ 2026-03-23 05:46:32
● 2026-03-23 14:52:16
○ 2026-03-24 11:57:58
○ 2026-03-26 16:02:08
● 2026-03-27 05:45:48
○ 2026-03-28 08:41:02
○ 2026-04-14 04:07:40
● 2026-04-16 19:30:32
○ 2026-04-16 20:24:54
○ 2026-04-24 03:52:30

○A66.33.60.1932026-03-06 → 2026-04-18 · 28 obs

○ 2026-03-06 03:47:24
● 2026-03-06 14:58:16
○ 2026-03-11 18:35:22
○ 2026-03-12 09:40:56
● 2026-03-13 03:45:34
○ 2026-03-14 08:57:52
○ 2026-03-15 04:46:28
● 2026-03-15 06:49:08
○ 2026-03-15 14:02:26
○ 2026-03-16 02:59:22
● 2026-03-16 08:59:04
○ 2026-03-16 20:34:16
○ 2026-03-18 01:58:56
● 2026-03-18 03:45:32
○ 2026-03-18 16:57:24
○ 2026-03-22 09:00:32
● 2026-03-22 15:37:04
○ 2026-03-22 22:11:04
○ 2026-03-29 03:17:30
● 2026-04-03 19:53:40
○ 2026-04-06 02:00:42
○ 2026-04-08 17:24:00
● 2026-04-10 02:45:12
○ 2026-04-11 09:09:36
○ 2026-04-18 01:52:56
● 2026-04-18 13:48:02
○ 2026-04-23 14:35:56
○ 2026-04-24 03:52:30

●A66.33.60.1942026-03-12 → 2026-04-24 · 42 obs

○ 2026-03-11 18:35:22
● 2026-03-12 04:30:00
○ 2026-03-12 05:59:24
○ 2026-03-14 14:43:40
● 2026-03-14 18:27:06
○ 2026-03-14 19:53:46
○ 2026-03-14 22:27:42
● 2026-03-14 23:34:36
○ 2026-03-15 02:46:22
○ 2026-03-15 14:02:26
● 2026-03-16 02:59:22
○ 2026-03-16 08:59:04
○ 2026-03-17 13:17:36
● 2026-03-18 01:58:56
○ 2026-03-18 03:45:32
○ 2026-03-18 16:57:24
● 2026-03-18 21:13:50
○ 2026-03-20 06:25:56
○ 2026-03-21 03:03:02
● 2026-03-21 20:39:04
○ 2026-03-22 01:59:10
● 2026-03-22 02:59:38
● 2026-03-22 04:13:34
○ 2026-03-22 05:33:16
○ 2026-03-22 15:37:04
● 2026-03-22 22:11:04
○ 2026-03-23 02:26:06
○ 2026-03-28 08:41:02
● 2026-03-28 12:30:08
● 2026-03-28 23:43:28
○ 2026-03-29 03:17:30
○ 2026-04-13 07:36:02
● 2026-04-13 13:22:36
○ 2026-04-13 15:40:02
● 2026-04-14 02:35:24
○ 2026-04-14 04:07:40
○ 2026-04-16 20:24:54
● 2026-04-16 22:28:56
○ 2026-04-18 01:52:56
○ 2026-04-18 13:48:02
● 2026-04-23 14:35:56
● 2026-04-24 03:52:30

○A66.33.60.342026-03-12 → 2026-04-13 · 17 obs

○ 2026-03-12 04:30:00
● 2026-03-12 05:59:24
○ 2026-03-12 09:40:56
○ 2026-03-22 04:13:34
● 2026-03-22 05:33:16
○ 2026-03-22 09:00:32
○ 2026-04-06 02:00:42
● 2026-04-08 14:04:26
○ 2026-04-08 17:24:00
○ 2026-04-11 09:09:36
● 2026-04-12 02:02:56
● 2026-04-13 05:23:56
○ 2026-04-13 07:36:02
○ 2026-04-13 13:22:36
● 2026-04-13 15:40:02
○ 2026-04-14 02:35:24
○ 2026-04-24 03:52:30

○A66.33.60.352026-03-12 → 2026-03-23 · 18 obs

○ 2026-03-12 05:59:24
● 2026-03-12 09:40:56
○ 2026-03-13 03:45:34
○ 2026-03-14 19:53:46
● 2026-03-14 22:27:42
○ 2026-03-14 23:34:36
○ 2026-03-16 08:59:04
● 2026-03-16 20:34:16
○ 2026-03-17 03:33:44
○ 2026-03-20 06:25:56
● 2026-03-20 13:03:36
○ 2026-03-20 23:28:22
● 2026-03-21 03:03:02
○ 2026-03-21 20:39:04
○ 2026-03-23 02:26:06
● 2026-03-23 05:46:32
○ 2026-03-23 14:52:16
○ 2026-04-24 03:52:30

○A66.33.60.662026-02-20 → 2026-04-11 · 27 obs

○ 2026-02-19 18:19:10
● 2026-02-20 03:46:18
● 2026-02-23 15:45:16
○ 2026-03-06 03:47:24
○ 2026-03-15 02:46:22
● 2026-03-15 04:46:28
○ 2026-03-15 06:49:08
○ 2026-03-18 03:45:32
● 2026-03-18 16:57:24
○ 2026-03-18 21:13:50
○ 2026-03-21 20:39:04
● 2026-03-22 01:59:10
○ 2026-03-22 02:59:38
○ 2026-03-22 22:11:04
● 2026-03-23 02:26:06
○ 2026-03-23 05:46:32
○ 2026-03-24 19:59:50
● 2026-03-25 11:09:12
● 2026-03-26 16:02:08
○ 2026-03-27 05:45:48
○ 2026-04-03 19:53:40
● 2026-04-06 02:00:42
○ 2026-04-08 14:04:26
○ 2026-04-10 02:45:12
● 2026-04-11 09:09:36
○ 2026-04-12 02:02:56
○ 2026-04-24 03:52:30

○A66.33.60.672026-03-14 → 2026-04-16 · 21 obs

○ 2026-02-19 18:19:10
○ 2026-03-14 08:57:52
● 2026-03-14 14:43:40
○ 2026-03-14 18:27:06
○ 2026-03-18 21:13:50
● 2026-03-20 06:25:56
○ 2026-03-20 13:03:36
● 2026-03-20 23:28:22
○ 2026-03-21 03:03:02
○ 2026-03-28 23:43:28
● 2026-03-29 03:17:30
○ 2026-04-03 19:53:40
○ 2026-04-13 05:23:56
● 2026-04-13 07:36:02
○ 2026-04-13 13:22:36
○ 2026-04-14 02:35:24
● 2026-04-14 04:07:40
○ 2026-04-16 19:30:32
● 2026-04-16 20:24:54
○ 2026-04-16 22:28:56
○ 2026-04-24 03:52:30

○A76.76.21.1232026-03-12 → 2026-03-23 · 18 obs

○A76.76.21.1422026-02-20 → 2026-04-11 · 27 obs

○A76.76.21.1642026-03-12 → 2026-04-13 · 17 obs

○A76.76.21.222026-03-15 → 2026-04-18 · 24 obs

○A76.76.21.2412026-03-06 → 2026-04-18 · 28 obs

○A76.76.21.612026-02-19 → 2026-04-16 · 30 obs

●A76.76.21.932026-03-12 → 2026-04-24 · 42 obs

○A76.76.21.982026-03-14 → 2026-04-16 · 21 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
react.dev	edna.ns.cloudflare.com, norm.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.134

NS records: edna.ns.cloudflare.com, norm.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for react.dev (unsigned zone)

⏱️ Timing

Total: 631ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`66.33.60.66, 76.76.21.142`
NS	2	`edna.ns.cloudflare.com, norm.ns.cloudflare.com`
TXT	1	`google-site-verification=a5RC7LuUuYSWBrP`
SOA	1	`edna.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

Two IP numbers are pointed to by react.dev: 66.33.60.194 and 76.76.21.93.

other host names include slojd.se, anatolyzenkov.com, cultureonlymgmt.com, bevakad.se and sayhelloto.us; they share IP numbers with react.dev.

Name Servers

Two name servers edna.ns.cloudflare.com and norm.ns.cloudflare.com handle the delegation for react.dev.

react.dev shares the same name server setup as other domains, for instance tawabtours.com, andreagiardini.com, toughmudder.com.au, componentkit.org and rocksdb.org.

react.dev at least partially shares name servers with other domains, for instance ceibelize.com, lkh.go.th, a-babel.com, b98z.com and baraba302.com.

These name servers are commonly used alongside apollo.ns.cloudflare.com.

Six IP addresses per host:

edna.ns.cloudflare.com points to 2606:4700:50::adf5:3a6d, 2803:f800:50::6ca2:c06d, 2a06:98c1:50::ac40:206d, 108.162.192.109, 172.64.32.109 and 173.245.58.109; norm.ns.cloudflare.com points to 2606:4700:58::adf5:3b86, 2803:f800:50::6ca2:c186, 2a06:98c1:50::ac40:2186, 108.162.193.134, 172.64.33.134 and 173.245.59.134

react.dev - robtex.com

react.dev

dev