HTTP Headers 1.19.2

Does HTTP Headers work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
4PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 124.53 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment
WordPress version6.9
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 40,000+
WordPress.org page https://wordpress.org/plugins/http-headers/
Badges

WordPress compatibility badge PHP compatibility badge

Get badge code

Pages 3

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=http-headers%2Fhttp-headers.php&plugin_status=all&paged=1&s&_wpnonce=ccdbe8e915
Aspect after-activation
HTTP status 200
Load time 0.483 s
Memory usage 3.86 MiB
JS errors None
Resource errors None

Settings → HTTP Headers

Page screenshot: Settings → HTTP Headers
URL /wp-admin/options-general.php?page=http-headers
Aspect menu-item
HTTP status 200
Load time 0.289 s
Memory usage 3.85 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.163 s
Memory usage 4.15 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.445 s0.357 s-0.088 s3.78 MiB3.89 MiB+ 114.73 KiB
/wp-admin/edit.php0.378 s0.456 s+0.078 s3.78 MiB3.91 MiB+ 133.79 KiB
/wp-admin/post-new.php0.822 s0.997 s+0.175 s6.31 MiB6.48 MiB+ 174.63 KiB
/wp-admin/upload.php0.480 s0.439 s-0.041 s3.74 MiB3.85 MiB+ 116.38 KiB
/wp-admin/options-writing.php0.359 s0.328 s-0.031 s3.71 MiB3.83 MiB+ 120.69 KiB
/wp-admin/media-new.php0.558 s0.321 s-0.237 s3.7 MiB3.83 MiB+ 128.88 KiB
/wp-admin/edit-tags.php?taxonomy=category0.344 s0.487 s+0.143 s3.72 MiB3.85 MiB+ 139.24 KiB
/wp-admin/post-new.php?post_type=page0.706 s0.734 s+0.028 s6.3 MiB6.47 MiB+ 172.06 KiB
/wp-admin/options-discussion.php0.444 s0.351 s-0.093 s3.71 MiB3.83 MiB+ 116.88 KiB
/wp-admin/edit-comments.php0.339 s0.339 s+0.000 s3.74 MiB3.85 MiB+ 116.69 KiB
/0.438 s0.217 s-0.221 s4.12 MiB4.15 MiB+ 35.88 KiB
Average 0.483 s0.457 s-0.026 s4.24 MiB4.36 MiB+ 124.53 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP
Language % Lines of code Comment lines Files
PHP85.9%5,2594759
CSS5.7%34801
JavaScript4.6%28411
PO File3.8%2311101
Total 6,122 158 62

PHP Code Analysis | More results »

Lines of code 1,395
Total complexity 366
Median class complexity 0.0
Median method complexity 0.0
Most complex class
Most complex function get_http_headers()
Classes 0
Methods 0
Functions 73

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Options wp_options 109

PHP Error Log 4 lines

[03-Dec-2025 04:07:50 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 04:07:50 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 04:07:59 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[03-Dec-2025 04:07:59 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
See also: All tests for this plugin, How to Hide the "HTTP Headers" Admin Menu