Security Report Summary
C
Site: https://expo.dev/
IP Address: 104.18.5.104
Report Time: 31 Aug 2025 06:23:54 UTC
Headers:
  • X-Content-Type-Options
  • X-Frame-Options
  • Strict-Transport-Security
  • Content-Security-Policy
  • Referrer-Policy
  • Permissions-Policy
Advanced:
Not bad… Maybe you should perform a deeper security analysis of your website and APIs:
Missing Headers
Content-Security-PolicyContent Security Policy is an effective measure to protect your site from XSS attacks. By whitelisting sources of approved content, you can prevent the browser from loading malicious assets.
Referrer-PolicyReferrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites.
Permissions-PolicyPermissions Policy is a new header that allows a site to control which features and APIs can be used in the browser.
Raw Headers
HTTP/2200
dateSun, 31 Aug 2025 06:23:54 GMT
content-typetext/html; charset=utf-8
cf-ray977a711ebf5a86aa-DUB
x-content-type-optionsnosniff
content-security-policy-report-onlydefault-src 'self' https://static.expo.dev; connect-src 'self' https://api.expo.dev https://static.expo.dev https://job-artifacts.eascdn.net https://job-logs.eascdn.net https://staging-assets.eascdn.net https://assets.eascdn.net https://eas.expo.app https://cdp.expo.dev http://127.0.0.1:* https://qr.expo.dev https://status.expo.dev https://8tdse0ohgq-dsn.algolia.net https://qex7pb7d46-dsn.algolia.net https://sessions.bugsnag.com https://*.g.doubleclick.net https://api.github.com https://google.com https://*.google.com https://*.analytics.google.com https://*.google-analytics.com https://www.googleadservices.com https://*.googleapis.com https://pagead2.googlesyndication.com https://*.googletagmanager.com https://react-tweet.vercel.app https://reactnative.directory https://api.rudderstack.com https://9r24npb8.api.sanity.io https://9r24npb8.apicdn.sanity.io https://sentry.io https://o30871.ingest.sentry.io https://api.stripe.com https://api.logrocket.com https://*.typeform.com https://*.hubapi.com https://*.hubspot.com https://*.hs-banner.com https://*.hscollectedforms.net https://*.hsforms.com https://px.ads.linkedin.com https://www.redditstatic.com https://pixel-config.reddit.com; manifest-src 'self'; font-src 'self' data: https://static.expo.dev https://cdnjs.cloudflare.com https://fonts.gstatic.com; frame-src https://*.datadoghq.com https://td.doubleclick.net https://www.google.com https://www.googletagmanager.com https://www.recaptcha.net https://*.js.stripe.com https://js.stripe.com https://hooks.stripe.com https://*.youtube.com https://embed.bsky.app https://*.logrocket.com https://*.typeform.com https://*.hubspot.com https://*.hs-sites.com https://*.hubspot.net https://*.hsforms.net https://*.hsforms.com; img-src 'self' https: data: blob:; media-src 'self' https: data: blob:; script-src 'self' 'unsafe-inline' https://static.expo.dev https://d2wy8f7a9ursnm.cloudfront.net https://googleads.g.doubleclick.net https://tagmanager.google.com https://www.google.com https://www.googleadservices.com https://maps.googleapis.com https://pagead2.googlesyndication.com https://*.googletagmanager.com https://www.gstatic.cn https://www.gstatic.com https://cdn.rudderlabs.com https://js.stripe.com https://*.js.stripe.com https://www.youtube.com https://embed.bsky.app https://*.typeform.com https://*.hs-scripts.com https://*.hsadspixel.net https://*.hscollectedforms.net https://*.hs-analytics.net https://*.hs-banner.com https://*.hsforms.net https://*.hsforms.com https://*.hsleadflows.net https://snap.licdn.com https://www.redditstatic.com https://pixel-config.reddit.com; style-src 'self' 'unsafe-inline' https:; frame-ancestors 'self'; report-to expo
reporting-endpointsexpo="https://api.expo.dev/v2/reporting"
x-frame-optionsSAMEORIGIN
varyAccept-Encoding
cache-controlprivate, no-cache, no-store, max-age=0, must-revalidate
etag"thvyn49zoi53uq"
content-encodinggzip
via1.1 google
strict-transport-securitymax-age=31536000; includeSubDomains
alt-svch3=":443"; ma=86400
cf-cache-statusDYNAMIC
servercloudflare
Upcoming Headers
Cross-Origin-Embedder-PolicyCross-Origin Embedder Policy allows a site to prevent assets being loaded that do not grant permission to load them via CORS or CORP.
Cross-Origin-Opener-PolicyCross-Origin Opener Policy allows a site to opt-in to Cross-Origin Isolation in the browser.
Cross-Origin-Resource-PolicyCross-Origin Resource Policy allows a resource owner to specify who can load the resource.
Additional Information
x-content-type-optionsX-Content-Type-Options stops a browser from trying to MIME-sniff the content type and forces it to stick with the declared content-type. The only valid value for this header is "X-Content-Type-Options: nosniff".
content-security-policy-report-onlyContent Security Policy Report Only is used to test a Content Security Policy before making it live. The browser will report on actions that would have been taken based on the policy. Analyse this policy in more detail. You can sign up for a free account on Report URI to collect reports about problems on your site.
x-frame-optionsX-Frame-Options tells the browser whether you want to allow your site to be framed or not. By preventing a browser from framing your site you can defend against attacks like clickjacking.
strict-transport-securityHTTP Strict Transport Security is an excellent feature to support on your site and strengthens your implementation of TLS by getting the User Agent to enforce the use of HTTPS.
serverServer value has been changed. Typically you will see values like "Microsoft-IIS/8.0" or "nginx 1.7.2".