Image Optimizer - Compress, Resize and Optimize Images 1.6.9

Does "Image Optimizer - Compress, Resize and Optimize Images" 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: 372.28 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/image-optimization/
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Pages 5

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=image-optimization%2Fimage-optimization.php&plugin_status=all&paged=1&s&_wpnonce=7f5e1c9197
Aspect after-activation
HTTP status 200
Load time 2.103 s
Memory usage 4.63 MiB
JS errors None
Resource errors None

Media → Image Optimizer

Page screenshot: Media  → Image Optimizer
URL /wp-admin/upload.php?page=image-optimization-settings
Aspect menu-item
HTTP status 200
Load time 0.398 s
Memory usage 4.07 MiB
JS errors None
Resource errors None

Media → Bulk Optimization

Page screenshot: Media  → Bulk Optimization
URL /wp-admin/upload.php?page=image-optimization-bulk-optimization
Aspect menu-item
HTTP status 200
Load time 0.385 s
Memory usage 4.08 MiB
JS errors None
Resource errors None

Tools → Scheduled Actions

Page screenshot: Tools → Scheduled Actions
URL /wp-admin/tools.php?page=action-scheduler
Aspect menu-item
HTTP status 200
Load time 0.493 s
Memory usage 4.1 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 0.272 s
Memory usage 4.36 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.604 s0.479 s-0.125 s3.78 MiB4.16 MiB+ 396.13 KiB
/wp-admin/edit.php0.407 s0.344 s-0.063 s3.78 MiB4.15 MiB+ 377.06 KiB
/wp-admin/post-new.php0.864 s0.871 s+0.007 s6.31 MiB6.85 MiB+ 559.34 KiB
/wp-admin/upload.php0.482 s0.502 s+0.020 s3.74 MiB4.09 MiB+ 357.55 KiB
/wp-admin/options-writing.php0.356 s0.431 s+0.075 s3.71 MiB4.02 MiB+ 318.59 KiB
/wp-admin/media-new.php0.551 s0.400 s-0.151 s3.7 MiB4.02 MiB+ 327.61 KiB
/wp-admin/edit-tags.php?taxonomy=category0.338 s0.372 s+0.034 s3.72 MiB4.04 MiB+ 332.43 KiB
/wp-admin/post-new.php?post_type=page0.714 s0.710 s-0.004 s6.3 MiB6.84 MiB+ 551.81 KiB
/wp-admin/options-discussion.php0.383 s0.622 s+0.239 s3.71 MiB4.02 MiB+ 315.09 KiB
/wp-admin/edit-comments.php0.329 s0.377 s+0.048 s3.73 MiB4.04 MiB+ 315.38 KiB
/0.431 s0.189 s-0.242 s4.12 MiB4.36 MiB+ 244.11 KiB
Average 0.496 s0.482 s-0.015 s4.24 MiB4.6 MiB+ 372.28 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
PHP83.5%10,5802,012169
JavaScript14.3%1,80611939
CSS2.1%27026
SVG0.1%1602
Total 12,672 2,133 216

PHP Code Analysis | More results »

Lines of code 9,857
Total complexity 1,563
Median class complexity 6.0
Median method complexity 1.0
Most complex class ImageOptimization\Classes\Rest\Route
Most complex function ImageOptimization\Modules\Optimization\Components\Media_Control::render_optimization_control()
Classes 150
Methods 757
Functions 0

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 14

Custom Post Types 1

ID Name
scheduled-actionScheduled Actions

PHP Error Log 4 lines

[02-Dec-2025 21:09:57 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 21:09:57 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 21:10:07 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 21:10:07 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 Image Optimizer - Compress, Resize and Optimize Images Admin Menus