Report - Webcraftic Robin image optimizer 1.5.1

Does "Webcraftic Robin image optimizer" work with WordPress 5.7 and PHP 7.4.8? A smoke test was performed on 2021-04-05 06:23:00 UTC.

Summary

Errors

10	PHP notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 524.56 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	5.7
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

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 5

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=fb361168fa
Aspect	after-activation
HTTP status	200
Load time	3.029 s
Memory usage	3.37 MiB
JS errors	None
Resource errors	None

Settings → Robin image optimizer

URL	/wp-admin/options-general.php?page=rio_general-wbcr_image_optimizer
Aspect	menu-item
HTTP status	200
Load time	1.364 s
Memory usage	3.56 MiB
JS errors	None
Resource errors	None

License

URL	/wp-admin/admin.php?page=rio_license-wbcr_image_optimizer
Aspect	menu-item
HTTP status	200
Load time	0.263 s
Memory usage	3.27 MiB
JS errors	None
Resource errors	None

Settings

URL	/wp-admin/admin.php?page=rio_settings-wbcr_image_optimizer
Aspect	menu-item
HTTP status	200
Load time	0.511 s
Memory usage	3.77 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.210 s
Memory usage	2.81 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.270 s	0.408 s	+0.138 s	2.82 MiB	3.38 MiB	+ 570.19 KiB
/wp-admin/edit.php	0.184 s	0.300 s	+0.116 s	2.86 MiB	3.41 MiB	+ 558.67 KiB
/wp-admin/post-new.php	1.293 s	1.040 s	-0.253 s	5.02 MiB	5.57 MiB	+ 556.39 KiB
/wp-admin/upload.php	0.528 s	0.440 s	-0.088 s	2.7 MiB	3.25 MiB	+ 564.42 KiB
/wp-admin/options-writing.php	0.270 s	0.171 s	-0.099 s	2.71 MiB	3.23 MiB	+ 532.7 KiB
/wp-admin/media-new.php	0.232 s	0.197 s	-0.035 s	2.67 MiB	3.22 MiB	+ 565.4 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.186 s	0.211 s	+0.025 s	2.77 MiB	3.33 MiB	+ 574.11 KiB
/wp-admin/post-new.php?post_type=page	0.977 s	0.964 s	-0.013 s	5.01 MiB	5.55 MiB	+ 551.35 KiB
/wp-admin/options-discussion.php	0.291 s	0.219 s	-0.072 s	2.67 MiB	3.22 MiB	+ 560.05 KiB
/wp-admin/edit-comments.php	0.229 s	0.234 s	+0.005 s	2.78 MiB	3.33 MiB	+ 571.49 KiB
/	0.350 s	0.222 s	-0.128 s	2.65 MiB	2.81 MiB	+ 165.41 KiB
Average	0.437 s	0.401 s	-0.037 s	3.15 MiB	3.66 MiB	+ 524.56 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	62.7%	23,643	15,257	235
	CSS	16.6%	6,270	179	20
	JavaScript	9.4%	3,564	712	22
	LESS	7.2%	2,728	172	9
	PO File	3.9%	1,485	586	9
	Markdown	0.1%	20	0	2
	JSON	0.0%	5	0	1
Total			37,715	16,906	298

PHP Code Analysis | More results »

Lines of code	21,954
Total complexity	4,642
Median class complexity	14.0
Median method complexity	2.0
Most complex class	RIO_Process_Queue
Most complex function	Wbcr_FactoryForms443_DropdownControl::defaultHtml()

Classes	180
Methods	1,457
Functions	50

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` 8

wbcr_io_backup_origin_images
wbcr_io_db_version
wbcr_io_image_optimization_server
wbcr_io_image_optimize_all_usage
wbcr_io_image_optimize_flush_usage
wbcr_io_plugin_activated
wbcr_io_plugin_version
wbcr_io_save_exif_data

PHP Error Log 10 lines

[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 687
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 688
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 696
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 699
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: scheme in /wp-includes/canonical.php on line 720
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 687
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 688
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 696
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: host in /wp-includes/canonical.php on line 699
[05-Apr-2021 06:23:33 UTC] PHP Notice:  Undefined index: scheme in /wp-includes/canonical.php on line 720

Webcraftic Robin image optimizer 1.5.1