Safe Headers Scanner
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 * Direct output…
Consider an alternative
Safe Headers Scanner shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 12 months ago, and scores 36/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
- Only tested up to WordPress 6.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Safe Headers Scanner stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| debug | >100 |
| headers | >100 |
| plugins | >100 |
| scanner | >100 |
| security | >100 |
About Safe Headers Scanner
From the official readme · v1.2Description
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 <?php 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
Does this plugin automatically fix issues?
No. It only scans and reports possible issues. You need to manually review and fix them.
Will it slow down my website?
No. The scan only runs when you request it from the admin panel. It does not affect frontend performance.
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.
Screenshots
For developers
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FAQ
Safe Headers Scanner: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 28, 2026
Is Safe Headers Scanner free?
Yes. Safe Headers Scanner is free to download and use from the official WordPress.org plugin directory.
Is Safe Headers Scanner safe to use in 2026?
Safe Headers Scanner shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 12 months ago, and scores 36/100 on our health check.
How many websites use Safe Headers Scanner?
Safe Headers Scanner is active on <10 WordPress websites and has been downloaded 378 times since it launched in October 2025. It was downloaded 33 times in the last 30 days.
Does Safe Headers Scanner work with WordPress 7.1?
Safe Headers Scanner is officially tested up to WordPress 6.8.10, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Safe Headers Scanner last updated?
The latest version, 1.2, was released on October 8, 2025 (12 months ago).
Who makes Safe Headers Scanner?
Safe Headers Scanner is developed and maintained by amir tohidlo.
What are the best alternatives to Safe Headers Scanner?
The most popular alternatives to Safe Headers Scanner are WP Crontrol (300K+ installs), Query Monitor (200K+ installs) and Debug Bar (20K+ installs).
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