Smush 3.22.3

Does Smush 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: 937.47 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 1,000,000+
WordPress.org page https://wordpress.org/plugins/wp-smushit/
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Pages 9

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=wp-smushit%2Fwp-smush.php&plugin_status=all&paged=1&s&_wpnonce=1018a2dfc0
Aspect after-activation
HTTP status 200
Load time 0.831 s
Memory usage 4.93 MiB
JS errors None
Resource errors None

Smush

Page screenshot: Smush
URL /wp-admin/admin.php?page=smush
Aspect menu-item
HTTP status 200
Load time 0.888 s
Memory usage 4.91 MiB
JS errors None
Resource errors None

Smush → Bulk Smush

Page screenshot: Smush → Bulk Smush
URL /wp-admin/admin.php?page=smush-bulk
Aspect menu-item
HTTP status 200
Load time 0.600 s
Memory usage 4.78 MiB
JS errors None
Resource errors None

Smush → Lazy Load & Preload

Page screenshot: Smush → Lazy Load & Preload
URL /wp-admin/admin.php?page=smush-lazy-preload
Aspect menu-item
HTTP status 200
Load time 0.568 s
Memory usage 4.67 MiB
JS errors None
Resource errors None

Smush → CDN

Page screenshot: Smush → CDN
URL /wp-admin/admin.php?page=smush-cdn
Aspect menu-item
HTTP status 200
Load time 1.078 s
Memory usage 4.66 MiB
JS errors None
Resource errors None

Smush → Next-Gen Formats

Page screenshot: Smush → Next-Gen Formats
URL /wp-admin/admin.php?page=smush-next-gen
Aspect menu-item
HTTP status 200
Load time 0.653 s
Memory usage 4.7 MiB
JS errors None
Resource errors None

Smush → Integrations

Page screenshot: Smush → Integrations
URL /wp-admin/admin.php?page=smush-integrations
Aspect menu-item
HTTP status 200
Load time 0.471 s
Memory usage 4.7 MiB
JS errors None
Resource errors None

Smush → Settings

Page screenshot: Smush → Settings
URL /wp-admin/admin.php?page=smush-settings
Aspect menu-item
HTTP status 200
Load time 0.460 s
Memory usage 4.66 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 0.326 s
Memory usage 4.86 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php1.007 s0.587 s-0.420 s3.78 MiB4.74 MiB+ 988.42 KiB
/wp-admin/edit.php0.735 s0.512 s-0.223 s3.78 MiB4.72 MiB+ 960.18 KiB
/wp-admin/post-new.php0.859 s1.326 s+0.467 s6.31 MiB7.34 MiB+ 1.03 MiB
/wp-admin/upload.php0.520 s1.160 s+0.640 s3.74 MiB4.63 MiB+ 912.21 KiB
/wp-admin/options-writing.php0.345 s0.464 s+0.119 s3.71 MiB4.6 MiB+ 906.59 KiB
/wp-admin/media-new.php0.545 s0.627 s+0.082 s3.7 MiB4.6 MiB+ 914.79 KiB
/wp-admin/edit-tags.php?taxonomy=category0.363 s0.363 s+0.000 s3.72 MiB4.61 MiB+ 919.74 KiB
/wp-admin/post-new.php?post_type=page0.998 s0.823 s-0.175 s6.3 MiB7.32 MiB+ 1.03 MiB
/wp-admin/options-discussion.php1.095 s0.394 s-0.701 s3.71 MiB4.6 MiB+ 902.78 KiB
/wp-admin/edit-comments.php0.530 s0.439 s-0.091 s3.74 MiB4.65 MiB+ 939.79 KiB
/0.349 s0.252 s-0.097 s4.12 MiB4.86 MiB+ 758.83 KiB
Average 0.668 s0.632 s-0.036 s4.24 MiB5.15 MiB+ 937.47 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
JavaScript
Language % Lines of code Comment lines Files
PHP78.4%52,09621,062454
JavaScript13.8%9,1591,76456
Sass5.2%3,4414910
JSX1.5%996576
JSON0.9%62601
SVG0.2%13226
Total 66,450 22,934 533

PHP Code Analysis | More results »

Lines of code 45,040
Total complexity 10,847
Median class complexity 19.5
Median method complexity 2.0
Most complex class Smush\Core\Modules\Smush
Most complex function Smush_Vendor\GuzzleHttp\Handler\CurlFactory::applyHandlerOptions()
Classes 308
Methods 3,901
Functions 19

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.

Database Tables 1

Options wp_options 10

PHP Error Log 4 lines

[02-Dec-2025 21:13:02 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
[02-Dec-2025 21:13:02 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
[02-Dec-2025 21:13:14 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
[02-Dec-2025 21:13:14 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 Smush Admin Menus