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CSS JS Manager, Async JavaScript, Defer Render Blocking CSS 2.4.49.46

Does "CSS JS Manager, Async JavaScript, Defer Render Blocking CSS" work with WordPress 6.8 and PHP 8.1.12? A smoke test was performed on 2025-04-18 03:48:04 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	0.343 s	0.280 s	-0.063 s	3.51 MiB	3.59 MiB	+ 84.09 KiB
/wp-admin/edit.php	0.189 s	0.189 s	+0.000 s	3.57 MiB	3.65 MiB	+ 81.7 KiB
/wp-admin/post-new.php	0.752 s	0.714 s	-0.038 s	6.06 MiB	6.14 MiB	+ 84.99 KiB
/wp-admin/upload.php	0.617 s	0.482 s	-0.135 s	3.52 MiB	3.59 MiB	+ 64.29 KiB
/wp-admin/options-writing.php	0.210 s	0.181 s	-0.029 s	3.5 MiB	3.57 MiB	+ 68.28 KiB
/wp-admin/media-new.php	0.251 s	0.228 s	-0.023 s	3.49 MiB	3.57 MiB	+ 76.48 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.190 s	0.172 s	-0.018 s	3.5 MiB	3.59 MiB	+ 87.15 KiB
/wp-admin/post-new.php?post_type=page	0.591 s	0.541 s	-0.050 s	6.05 MiB	6.13 MiB	+ 80.52 KiB
/wp-admin/options-discussion.php	0.272 s	0.268 s	-0.004 s	3.5 MiB	3.57 MiB	+ 64.78 KiB
/wp-admin/edit-comments.php	0.410 s	0.376 s	-0.034 s	3.52 MiB	3.59 MiB	+ 64.28 KiB
/	0.326 s	0.176 s	-0.150 s	3.43 MiB	3.54 MiB	+ 109.46 KiB
Average	0.377 s	0.328 s	-0.049 s	3.97 MiB	4.05 MiB	+ 78.73 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	55.2%	1,765	622	26
	SVG	42.1%	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			3,196	688	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 1 lines

[18-Apr-2025 03:48:22 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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