Safe Headers Scanner
Scan themes and plugins for potential header issues such as whitespace before/after PHP tags or direct output before headers.
Plugin info
Maintenance & Compatibility
Maintenance score
Actively maintained • Last updated 85 days ago
Is Safe Headers Scanner abandoned?
Likely maintained (last update 85 days ago).
Compatibility
Similar & Alternatives
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Description
Safe Headers Scanner helps WordPress administrators identify common issues that may cause header-related problems.
The plugin scans installed themes and plugins for:
* Unnecessary whitespace before tags
* Extra whitespace after closing ?> tags
* Direct output (e.g., echo, print) before headers are sent
Results are displayed in a clear report, so you can review and fix potential issues easily.
Installation
- Upload the
safe-headers-scannerfolder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
- Go to Tools > Safe Headers Scanner to scan your themes or plugins.
Frequently Asked Questions
No. It only scans and reports possible issues. You need to manually review and fix them.
No. The scan only runs when you request it from the admin panel. It does not affect frontend performance.
Review feed
Changelog
1.0
- Initial release.
1.1
- Fixed path handling by replacing hardcoded WP_CONTENT_DIR references with get_theme_root() and WP_PLUGIN_DIR.
- Improved asset handling by replacing inline and with wp_register_script(), wp_add_inline_script() and wp_add_inline_style().
- Added explicit versioning for enqueued resources to comply with WordPress coding standards.
1.2
- Replaced WP_PLUGIN_DIR with plugin_dir_path() for improved compatibility with non-standard WordPress setups.
