builder.io

Observed 2026-07-14T02:04:20.852Z (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Also usesDocuSignGoogle Search ConsoleHubSpotZoom

95 subdomains · push_legacy

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat builder.io actually stands on - every host below is a signed observation

builder.io

A / AAAA

151.101.1.195151.101.65.195

Cloudflareserves the site

dns1.registrar-servers.comdns2.registrar-servers.com

registrar-servers.comanswers its DNS

alt2.aspmx.l.google.comalt1.aspmx.l.google.comalt3.aspmx.l.google.comaspmx.l.google.com+1 more

Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 308 → https://www.builder.io/

HTTP status308

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time115 ms

DNS resolutionNOERROR

Redirect chain

https://www.builder.io/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

151.101.1.195
151.101.65.195

MX 5

5alt2.aspmx.l.google.com
5alt1.aspmx.l.google.com
10alt3.aspmx.l.google.com
1aspmx.l.google.com
10alt4.aspmx.l.google.com

TXT 16

docusign=0dcfe40d-d88b-4054-9249-4efd2420fc2e
anthropic-domain-verification-ch5mfv=htAoNe8L7J56TqrIO6oyxylYT
google-site-verification=xBNkc4ppaqNYXOd_85XSg2s2InXq9P-DDAUibkXlt7c
google-site-verification=plGLufpD3qqejcxbf0COWScDMpVQMyYLiVezcv9S0F4
firebase=builder-3b0a2
coda-verification=4d4da3b9-ad9e-4a8e-a463-d4f9d93770ad
MS=ms38839399
v=spf1 include:_spf.firebasemail.com include:5149643.spf10.hubspotemail.net ~all
google-site-verification=-BTh4v7FtxG6n7VGYSWp-7_m0ZNpd5NTT31i14y6jSE
MS=85674A50BC5FB9F985C2BCDA1E774EB4DB4FD424

NS 2

dns1.registrar-servers.com
dns2.registrar-servers.com

SOA 1

dns1.registrar-servers.com hostmaster.registrar-servers.com

TLS Certificates (0)

None.

Subdomains (95)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for builder.io. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/builder.io">
  <img src="https://domaindrift.io/badge/builder.io.svg"
       width="300" height="64" alt="DomainDrift signed observations for builder.io">
</a>

Ed25519 Receipt

Receipt ID: 17fdfd11-b63f-42db-a84c-ecf686ca5eec
Output Hash: 52884722c6ea6a5831ff407e9907429f21311986662bdcaa76f6e6b8ec2c6043
Signature: ed25519:57741a2bb114c2597267a377ddd7554ff98e9c690d3050803566303f7a81352b60835a69fba6427762b6b65da1931aaa3315d053c2782669d9f693e97d1eb909
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/builder.io