Report - Robin image optimizer 2.0.4

Does Robin image optimizer work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-05-05 21:49:20 UTC.

Summary

Errors

	No PHP errors, warnings or notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors
	Looks good! No problems were detected.

Performance

Memory usage: 418.29 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 version	6.9.4
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-03-12T15:45:00+00:00
Active installs	100,000+
WordPress.org page	https://wordpress.org/plugins/robin-image-optimizer/
Badges	Get badge code

Pages 9

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=robin-image-optimizer%2Frobin-image-optimizer.php&plugin_status=all&paged=1&s&_wpnonce=ff839cc0e6
Aspect	after-activation
HTTP status	200
Load time	0.629 s
Memory usage	4.48 MiB
JS errors	None
Resource errors	None

Media → Other Media

URL	/wp-admin/upload.php?page=rio-custom-media
Aspect	menu-item
HTTP status	200
Load time	0.290 s
Memory usage	4.1 MiB
JS errors	None
Resource errors	None

Robin Image Optimizer

URL	/wp-admin/admin.php?page=rio_general-robin-image-optimizer
Aspect	menu-item
HTTP status	200
Load time	0.528 s
Memory usage	4.19 MiB
JS errors	None
Resource errors	None

Robin Image Optimizer → Settings

URL	/wp-admin/admin.php?page=rio_settings-robin-image-optimizer
Aspect	menu-item
HTTP status	200
Load time	0.529 s
Memory usage	4.43 MiB
JS errors	None
Resource errors	None

Robin Image Optimizer → License

URL	/wp-admin/admin.php?page=wrio_license
Aspect	menu-item
HTTP status	200
Load time	0.343 s
Memory usage	4.11 MiB
JS errors	None
Resource errors	None

Robin Image Optimizer → About Us

URL	/wp-admin/admin.php?page=ti-about-robin_image_optimizer
Aspect	menu-item
HTTP status	200
Load time	1.893 s
Memory usage	4.88 MiB
JS errors	None
Resource errors	None

Custom Folders

URL	/wp-admin/admin.php?page=io_folders_statistic-robin-image-optimizer
Aspect	menu-item
HTTP status	200
Load time	0.404 s
Memory usage	4.18 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.267 s
Memory usage	4.35 MiB
JS errors	None
Resource errors	None

Dashboard ‹ Test site — WordPress

URL	/wp-admin/index.php
Aspect	new-meta-boxes
HTTP status	200
Load time	0.359 s
Memory usage	4.25 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.365 s	0.434 s	+0.069 s	3.78 MiB	4.25 MiB	+ 488.64 KiB
/wp-admin/edit.php	0.343 s	0.293 s	-0.050 s	3.78 MiB	4.23 MiB	+ 452.84 KiB
/wp-admin/post-new.php	0.846 s	0.923 s	+0.077 s	6.31 MiB	6.8 MiB	+ 501.95 KiB
/wp-admin/upload.php	0.623 s	0.475 s	-0.148 s	3.74 MiB	4.13 MiB	+ 397.21 KiB
/wp-admin/options-writing.php	0.322 s	0.309 s	-0.013 s	3.71 MiB	4.1 MiB	+ 399.82 KiB
/wp-admin/media-new.php	0.507 s	0.354 s	-0.153 s	3.7 MiB	4.1 MiB	+ 408.02 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.315 s	0.298 s	-0.017 s	3.72 MiB	4.12 MiB	+ 412.39 KiB
/wp-admin/post-new.php?post_type=page	0.790 s	0.646 s	-0.144 s	6.3 MiB	6.78 MiB	+ 495.44 KiB
/wp-admin/options-discussion.php	0.461 s	0.640 s	+0.179 s	3.71 MiB	4.1 MiB	+ 396.32 KiB
/wp-admin/edit-comments.php	0.293 s	0.335 s	+0.042 s	3.73 MiB	4.12 MiB	+ 395.34 KiB
/	0.267 s	0.181 s	-0.086 s	4.11 MiB	4.35 MiB	+ 253.2 KiB
Average	0.467 s	0.444 s	-0.022 s	4.24 MiB	4.64 MiB	+ 418.29 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

CSS

JavaScript

Language		%	Lines of code	Comment lines	Files
	PHP	65.9%	25,618	15,444	238
	CSS	17.0%	6,598	180	19
	JavaScript	9.7%	3,778	440	23
	LESS	7.2%	2,819	159	9
	Markdown	0.1%	42	0	1
	JSON	0.1%	39	0	2
Total			38,894	16,223	292

PHP Code Analysis | More results »

Lines of code	23,999
Total complexity	4,946
Median class complexity	13.0
Median method complexity	2.0
Most complex class	RIO_Process_Queue
Most complex function	WIO_OptimizePageTemplate::getMediaColumnTemplate()

Classes	184
Methods	1,545
Functions	56

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

wp_rio_process_queue

Options `wp_options` 11

robin_image_optimizer_install
robin_image_optimizer_license_data
robin-image-optimizer_version
wbcr_io_auto_optimize_when_upload
wbcr_io_backup_origin_images
wbcr_io_convert_webp_format
wbcr_io_db_version
wbcr_io_plugin_activated
wbcr_io_plugin_version
wbcr_io_save_exif_data
wbcr_io_server_2_quota_limit

Meta Boxes

{
    "dashboard": {
        "themeisle": {
            "title": "WordPress Guides/Tutorials",
            "context": "normal"
        }
    }
}

PHP Error Log

The log file is empty.

Robin image optimizer 2.0.4