This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Last-Modified and If-Modified-Since Headers


This plugin adds the ‘Last-Modified’ header to each post and returns the ‘304 Not Modified’ header to the client without a body in the response if he sent the ‘If-Modified-Since’ header and the post has not changed since that date.


  1. Upload ‘Last-Modified and If-Modified-Since Headers’ folder to the ‘plugins’ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.


Ẹrẹ́nà 30, 2022
Best Plugin for correct Last-Modified and If-Modified-Since headers. Tried a bunch of plugins and only this plugin works correctly. Thank you so much for the plugin!
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Contributors & Developers

“Last-Modified and If-Modified-Since Headers” is open source software. The following people have contributed to this plugin.


“Last-Modified and If-Modified-Since Headers” has been translated into 1 locale. Thank you to the translators for their contributions.

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