Test whether any webpage can be embedded in an iframe. Loads the URL securely in a real iframe — essential for checking X-Frame-Options and Content-Security-Policy before integration.
Visual embedding result
Enter a URL above to see if it allows iframe embedding.
Security Policy Verification Tool
Connecting to the target server securely
Please check the URL and ensure it allows browser requests.
You drop a URL into an iframe, refresh the page, and get a blank rectangle where content should be. No error in your code, no typo in the URL — the page loads fine in its own tab. This is almost always the target site refusing to be framed, and it's intentional.
Diagnose an iframe that works locally but fails after deployment. Compare parent origins, CSP directives, redirects, HTTPS, and authentication behavior.
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Firefox and Edge versions are coming next. Free to install
Use this free iframe tester to check whether any website can be embedded in an iframe. Simply enter a URL and the tool loads it inside a real iframe, instantly revealing if the site allows embedding or blocks it via X-Frame-Options or Content-Security-Policy headers. Essential for web developers building integrations, widgets, or embedded content.
Many websites deliberately prevent their pages from being loaded inside iframes as a security measure. This protects against clickjacking attacks, where a malicious site overlays invisible iframes on top of legitimate content to trick users into clicking hidden buttons or links. Understanding these restrictions is critical before you attempt to embed third-party content in your application.
DENY (never allow framing),
SAMEORIGIN (only allow framing from the same domain), and ALLOW-FROM (allow
framing from a specific origin).frame-ancestors directive in CSP provides more granular control, allowing site owners to
specify exactly which domains are permitted to embed their content in iframes.Testing iframe compatibility is a critical step before embedding third-party content in your application. This tool gives you an immediate visual result — you'll see the page render live if embedding is allowed, or get a clear error message if the site restricts framing. No need to write test HTML files or deploy code just to check.
This online iframe checker is completely free, requires no signup, and runs entirely in your browser. Whether you're verifying embed permissions for payment gateways, social media widgets, or external dashboards, this tool saves you time and helps prevent integration issues before they reach production.
For header-level diagnostics, open the HTTP Headers Checker. To inspect the HTML returned by the server, use View Page Source.
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