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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 6.8.1 and PHP 8.1.12? A smoke test was performed on 2025-06-04 01:35:15 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	0.539 s	0.294 s	-0.245 s	3.51 MiB	3.59 MiB	+ 89.55 KiB
/wp-admin/edit.php	0.230 s	0.200 s	-0.030 s	3.57 MiB	3.66 MiB	+ 87.19 KiB
/wp-admin/post-new.php	0.885 s	1.318 s	+0.433 s	6.06 MiB	6.17 MiB	+ 110.48 KiB
/wp-admin/upload.php	0.673 s	0.607 s	-0.066 s	3.52 MiB	3.59 MiB	+ 69.78 KiB
/wp-admin/options-writing.php	0.229 s	0.207 s	-0.022 s	3.5 MiB	3.57 MiB	+ 73.77 KiB
/wp-admin/media-new.php	0.264 s	0.246 s	-0.018 s	3.49 MiB	3.57 MiB	+ 81.97 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.216 s	0.205 s	-0.011 s	3.5 MiB	3.59 MiB	+ 92.64 KiB
/wp-admin/post-new.php?post_type=page	1.127 s	0.800 s	-0.327 s	6.05 MiB	6.15 MiB	+ 106.01 KiB
/wp-admin/options-discussion.php	0.451 s	0.259 s	-0.192 s	3.5 MiB	3.57 MiB	+ 70.27 KiB
/wp-admin/edit-comments.php	0.465 s	0.463 s	-0.002 s	3.52 MiB	3.59 MiB	+ 69.77 KiB
/	0.319 s	0.266 s	-0.053 s	3.5 MiB	3.55 MiB	+ 47.97 KiB
Average	0.491 s	0.442 s	-0.048 s	3.98 MiB	4.06 MiB	+ 81.76 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

[04-Jun-2025 01:35:44 UTC] PHP Warning:  Undefined array key "tab" in /wp-content/plugins/css-js-manager/admin/class-css-js-manager-menu.php on line 83
[04-Jun-2025 01:35:45 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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