IFrame Checker

iFrame checker compared with SecurityHeaders
iFrame checker	SecurityHeaders
Scope: It checks whether a page can be embedded in an iframe by reading the X-Frame-Options header and the CSP frame-ancestors directive. CSP checking was added in version 3.0.	Scope: It analyzes the HTTP response headers of a site and applies a grading system to the result.
Output: It reports whether the page can be framed. Version 2.0 follows redirects and gives more detailed results.	Output: The result is a grade for the headers analyzed.
Limits: Only headers are evaluated, and the page does not state that frame killer scripts are detected. It also notes that http pages cannot be included directly in https pages.
Provider and cost: It is published as a free checker by the author of the Advanced iFrame WordPress plugin, and the check applies to both the free and pro versions of that plugin.	Provider and cost: It is operated by Snyk. Scott Helme created it originally and still provides input. It is described as free, with an API available under keys and terms.

iFrame checker compared with SecurityHeaders

iFrame checker

SecurityHeaders

Scope: It checks whether a page can be embedded in an iframe by reading the X-Frame-Options header and the CSP frame-ancestors directive. CSP checking was added in version 3.0.

Scope: It analyzes the HTTP response headers of a site and applies a grading system to the result.

Output: It reports whether the page can be framed. Version 2.0 follows redirects and gives more detailed results.

Output: The result is a grade for the headers analyzed.

Limits: Only headers are evaluated, and the page does not state that frame killer scripts are detected. It also notes that http pages cannot be included directly in https pages.

Provider and cost: It is published as a free checker by the author of the Advanced iFrame WordPress plugin, and the check applies to both the free and pro versions of that plugin.

Provider and cost: It is operated by Snyk. Scott Helme created it originally and still provides input. It is described as free, with an API available under keys and terms.