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CSS JS Manager, Async JavaScript, Defer Render Blocking CSS 2.4.49.49

Does "CSS JS Manager, Async JavaScript, Defer Render Blocking CSS" work with WordPress 6.8.2 and PHP 8.1.12? A smoke test was performed on 2025-07-18 07:32:34 UTC.

Summary

Pages 6

Plugins ‹ Test site — WordPress

CSS JS Manager

Critical CSS

Critical CSS → Add New Critical CSS

Test site – Just another WordPress site

Add Post ‹ Test site — WordPress

Benchmark

URL	Load time			Memory usage
	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.293 s	0.299 s	+0.006 s	3.51 MiB	3.59 MiB	+ 88.87 KiB
/wp-admin/edit.php	0.183 s	0.190 s	+0.007 s	3.57 MiB	3.66 MiB	+ 86.51 KiB
/wp-admin/post-new.php	0.749 s	0.622 s	-0.127 s	6.06 MiB	6.17 MiB	+ 109.8 KiB
/wp-admin/upload.php	0.562 s	0.315 s	-0.247 s	3.52 MiB	3.59 MiB	+ 69.1 KiB
/wp-admin/options-writing.php	0.198 s	0.313 s	+0.115 s	3.5 MiB	3.57 MiB	+ 73.09 KiB
/wp-admin/media-new.php	0.250 s	0.277 s	+0.027 s	3.49 MiB	3.57 MiB	+ 81.29 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.175 s	0.174 s	-0.001 s	3.5 MiB	3.59 MiB	+ 91.96 KiB
/wp-admin/post-new.php?post_type=page	0.591 s	0.598 s	+0.007 s	6.05 MiB	6.15 MiB	+ 105.33 KiB
/wp-admin/options-discussion.php	0.288 s	0.274 s	-0.014 s	3.5 MiB	3.57 MiB	+ 69.59 KiB
/wp-admin/edit-comments.php	0.191 s	0.194 s	+0.003 s	3.52 MiB	3.59 MiB	+ 69.09 KiB
/	0.288 s	0.187 s	-0.101 s	3.43 MiB	3.55 MiB	+ 114.49 KiB
Average	0.343 s	0.313 s	-0.030 s	3.97 MiB	4.06 MiB	+ 87.19 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.

Language		%	Lines of code	Comment lines	Files
	PHP	55.6%	1,791	623	26
	SVG	41.7%	1,345	3	5
	JavaScript	1.3%	42	48	6
	JSON	0.9%	30	0	2
	CSS	0.4%	13	15	4
	HTML	0.0%	1	0	1
Total			3,222	689	44

PHP Code Analysis | More results »

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_css_js_manager

Options wp_options 1

• pi_review_activation_date_css-js-manager

Custom Post Types 1

ID	Name
pi_critical_css	Critical CSS

Meta Boxes

{
    "post": {
        "select-critical-css": {
            "title": "Select Critical CSS",
            "context": "advanced"
        }
    },
    "pi_critical_css": {
        "critical-css": {
            "title": "Critical CSS",
            "context": "advanced"
        }
    },
    "page": {
        "select-critical-css": {
            "title": "Select Critical CSS",
            "context": "advanced"
        }
    }
}

PHP Error Log 2 lines

[18-Jul-2025 07:32:50 UTC] PHP Warning:  Undefined array key "tab" in /wp-content/plugins/css-js-manager/admin/class-css-js-manager-menu.php on line 83
[18-Jul-2025 07:32:52 UTC] PHP Warning:  Undefined variable $global_css in /wp-content/plugins/css-js-manager/admin/critical-css-type.php on line 144

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