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Embed Tester
Test if any URL can be embedded in an iframe. Check X-Frame-Options and Content-Security-Policy headers.
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Try examples:
iFrame Load Test
X-Frame-Options
Content-Security-Policy
Embed Code
Preview
About Embed Testing
X-Frame-Options
The X-Frame-Options HTTP header indicates whether a browser should render a page in an iframe. DENY blocks all framing, SAMEORIGIN allows only same-domain.
Content-Security-Policy
The Content-Security-Policy frame-ancestors directive specifies valid parents that may embed a page. It supersedes X-Frame-Options.
Sites That Block Embedding
Google, Facebook, Twitter, GitHub, most banking sites
Sites That Allow Embedding
YouTube, Vimeo, CodePen, Google Maps, FreeWebTools