indexo.dev

csb.app

.app crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 385 ms crawled 2026-05-19

US · 172.64.151.115 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Sandbox - CodeSandbox
Language
en

Technology

CDN
Cloudflare
CMS
Gatsby

Third-party hosts loaded (1)

  • codesandbox.io×10

DNS records live

NS
  • adel.ns.cloudflare.com
  • greg.ns.cloudflare.com
MX
  • 10 mx.csb.app
TXT
  • google-site-verification=9A_MqBME8v33qswnDhNZKFDusDyqKgcsOoa3Jnqhtwg

Email authentication strong

SPF
v=spf1 ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; pct=10; rua=mailto:email-reports@codesandbox.io; ruf=mailto:email-reports@codesandbox.io
policy: quarantine · pct=10
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-05-11 to 2026-08-09
Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://csb.app/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (2)