reactjs.org
Observed 2026-07-13T01:39:49.554Z (2h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMandrill (Mailchimp)
Also usesGoogle Search Console
3 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat reactjs.org actually stands on - every host below is a signed observation
reactjs.org
A / AAAA
76.76.21.21
Cloudflareserves the site
NS
hattie.ns.cloudflare.comjunade.ns.cloudflare.com
cloudflare.comanswers its DNS
HTTPS probe
redirect
Redirecting (3xx) 308 → https://react.dev/
HTTP status308
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time157 ms
DNS resolutionNOERROR
Redirect chain
https://react.dev/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
76.76.21.21
TXT 3
google-site-verification=phixj4WdeUCjzqWQjOkCLkD8y6oeiJbqnCihojcYOWAgoogle-site-verification=8cSSWOK5msv3tzIFqXSvcb-KzSdG_E9g_H0bLIKhcWEv=spf1 include:spf.mandrillapp.com include:sparkpostmail.com ~all
NS 2
hattie.ns.cloudflare.comjunade.ns.cloudflare.com
SOA 1
hattie.ns.cloudflare.com dns.cloudflare.com
CAA 10
issuewild pki.goog; cansignhttpexchanges=yesissuewild comodoca.comissuewild ssl.comissuewild digicert.com; cansignhttpexchanges=yesissue digicert.com; cansignhttpexchanges=yesissue pki.goog; cansignhttpexchanges=yesissue comodoca.comissue letsencrypt.orgissue ssl.comissuewild letsencrypt.org
TLS Certificates (0)
None.
Subdomains (3)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
c1789f30-843b-4dd0-924e-daeb731921c2- Output Hash
89d37b3176a660c34217c023beeca4d6a16e8ca77072c50661205699eaa34149- Signature
ed25519:1e2c25fbb7e30b86c9f895685326ec216308b52145b6b5a6dc66ab7195b00eea0454b81afb80884641058bd068a342fc6b3fbdfae6f6b3adc332e8402d58e10b- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast