Security Report Summary
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Site: https://plotly.com/javascript/
IP Address: 216.150.1.1
Report Time: 08 Oct 2026 09:16:50 UTC
Headers:
  • Strict-Transport-Security
  • Content-Security-Policy
  • X-Frame-Options
  • X-Content-Type-Options
  • Referrer-Policy
  • Permissions-Policy
Advanced:
Your site could be at risk, let’s perform a deeper security analysis of your site 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.
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. Recommended value "X-Frame-Options: SAMEORIGIN".
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".
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/2103
serverVercel
x-vercel-idFZy5M2e94BS8lQYrOkL8iu7zsH6ygMAv
HTTP/2 200
accept-rangesbytes
access-control-allow-origin*
age0
cache-controlmax-age=600
content-encodinggzip
content-typetext/html; charset=utf-8
dateThu, 08 Oct 2026 09:16:50 GMT
etagW/"6abd4b6e-17543"
expiresThu, 08 Oct 2026 09:26:50 GMT
last-modifiedWed, 30 Sep 2026 17:48:30 GMT
serverVercel
strict-transport-securitymax-age=63072000
varyAccept-Encoding
via1.1 varnish
x-cacheMISS
x-cache-hits0
x-fastly-request-id8f1e1a805ede5ba53fce45a8e49d3e9fffedb5b9
x-github-edge-regionnortheurope
x-github-request-id1DD6:A5C8D:3FA0:70B1:6AC75F7E
x-origin-cacheHIT
x-proxy-cacheMISS
x-robots-tagindex
x-served-bycache-dub4395-DUB
x-timerS1791451011.535391,VS0,VE300
x-vercel-cacheMISS
x-vercel-iddub1::nsnrn-1791451010493-a847c27fa643
content-length10951
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
serverServer value has been changed. Typically you will see values like "Microsoft-IIS/8.0" or "nginx 1.7.2".
access-control-allow-originThis is a very lax CORS policy. Such a policy should only be used on a public CDN.
serverServer value has been changed. Typically you will see values like "Microsoft-IIS/8.0" or "nginx 1.7.2".
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.