Report - Reduce Unused CSS Solution with Critical CSS For WP 1.0.9

Does "Reduce Unused CSS Solution with Critical CSS For WP" work with WordPress 6.3.1 and PHP 8.1.12? A smoke test was performed on 2023-09-02 13:11:22 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: 38.26 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	6.3.1
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2025-05-14T06:46:00+00:00
Active installs	1,000+
WordPress.org page	https://wordpress.org/plugins/critical-css-for-wp/
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=critical-css-for-wp%2Fcritical-css-for-wp.php&plugin_status=all&paged=1&s&_wpnonce=2c7ee5ab76
Aspect	after-activation
HTTP status	200
Load time	0.303 s
Memory usage	2.8 MiB
JS errors	None
Resource errors	None

Critical CSS For WP

URL	/wp-admin/admin.php?page=critical-css-for-wp
Aspect	menu-item
HTTP status	200
Load time	0.249 s
Memory usage	2.76 MiB
JS errors	None
Resource errors	None

Critical CSS For WP → Advance

URL	/wp-admin/admin.php?page=critical-css-for-wp&tab=advance
Aspect	menu-item-tab
HTTP status	200
Load time	0.283 s
Memory usage	2.76 MiB
JS errors	None
Resource errors	None

Critical CSS For WP → Support

URL	/wp-admin/admin.php?page=critical-css-for-wp&tab=support
Aspect	menu-item-tab
HTTP status	200
Load time	0.262 s
Memory usage	2.76 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.216 s
Memory usage	3.13 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.503 s	0.392 s	-0.111 s	2.82 MiB	2.86 MiB	+ 38.14 KiB
/wp-admin/edit.php	0.266 s	0.266 s	+0.000 s	2.85 MiB	2.95 MiB	+ 99.39 KiB
/wp-admin/post-new.php	0.831 s	0.878 s	+0.047 s	5.21 MiB	5.25 MiB	+ 42.55 KiB
/wp-admin/upload.php	0.648 s	0.601 s	-0.047 s	2.77 MiB	2.79 MiB	+ 20.77 KiB
/wp-admin/options-writing.php	0.231 s	0.274 s	+0.043 s	2.76 MiB	2.77 MiB	+ 12.73 KiB
/wp-admin/media-new.php	0.367 s	0.291 s	-0.076 s	2.74 MiB	2.77 MiB	+ 32.96 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.248 s	0.266 s	+0.018 s	2.76 MiB	2.79 MiB	+ 38.13 KiB
/wp-admin/post-new.php?post_type=page	0.750 s	0.720 s	-0.030 s	5.21 MiB	5.25 MiB	+ 38.14 KiB
/wp-admin/options-discussion.php	0.331 s	0.309 s	-0.022 s	2.75 MiB	2.77 MiB	+ 21.26 KiB
/wp-admin/edit-comments.php	0.549 s	0.279 s	-0.270 s	2.78 MiB	2.8 MiB	+ 20.8 KiB
/	0.303 s	0.270 s	-0.033 s	3.13 MiB	3.18 MiB	+ 55.93 KiB
Average	0.457 s	0.413 s	-0.044 s	3.25 MiB	3.29 MiB	+ 38.26 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	76.1%	1,976	70	5
	CSS	14.4%	373	8	1
	JavaScript	9.3%	241	3	1
	JSON	0.2%	5	0	1
Total			2,595	81	8

PHP Code Analysis | More results »

Lines of code	2,004
Total complexity	381
Median class complexity	240.0
Median method complexity	6.0
Most complex class	Class_critical_css_for_wp
Most complex function	ccwp_delay_js_html()

Classes	1
Methods	34
Functions	28

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_critical_css_for_wp_urls

PHP Error Log

The log file is empty.