CSS JS Manager, Async JavaScript, Defer Render Blocking CSS 2.4.43

Does "CSS JS Manager, Async JavaScript, Defer Render Blocking CSS" work with WordPress 6.0.2 and PHP 7.4.8? A smoke test was performed on .

Summary

Errors
1PHP notices
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 86.63 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 version6.0.2
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 1,000+
WordPress.org page https://wordpress.org/plugins/css-js-manager/
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Pages 6

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=css-js-manager%2Fcss-js-manager.php&plugin_status=all&paged=1&s&_wpnonce=f0256269cb
Aspect after-activation
HTTP status 200
Load time 0.308 s
Memory usage 3.77 MiB
JS errors None
Resource errors None

CSS JS Manager

Page screenshot: CSS JS Manager
URL /wp-admin/admin.php?page=css-js-manager
Aspect menu-item
HTTP status 200
Load time 0.521 s
Memory usage 3.74 MiB
JS errors None
Resource errors None

Critical CSS

Page screenshot: Critical CSS
URL /wp-admin/edit.php?post_type=pi_critical_css
Aspect menu-item
HTTP status 200
Load time 0.176 s
Memory usage 3.8 MiB
JS errors None
Resource errors None

Critical CSS → Add New

Page screenshot: Critical CSS → Add New
URL /wp-admin/post-new.php?post_type=pi_critical_css
Aspect menu-item
HTTP status 200
Load time 0.263 s
Memory usage 3.97 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.233 s
Memory usage 3.67 MiB
JS errors None
Resource errors None

Add New Post ‹ Test site — WordPress

Page screenshot: Add New Post ‹ Test site — WordPress
URL /wp-admin/post-new.php
Aspect new-meta-boxes
HTTP status 200
Load time 0.770 s
Memory usage 5.64 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.320 s0.256 s-0.064 s3.72 MiB3.8 MiB+ 75.59 KiB
/wp-admin/edit.php0.193 s0.179 s-0.014 s3.76 MiB3.83 MiB+ 74.88 KiB
/wp-admin/post-new.php0.775 s0.960 s+0.185 s5.55 MiB5.64 MiB+ 93.9 KiB
/wp-admin/upload.php0.389 s0.304 s-0.085 s3.69 MiB3.76 MiB+ 75.12 KiB
/wp-admin/options-writing.php0.150 s0.181 s+0.031 s3.62 MiB3.73 MiB+ 118.99 KiB
/wp-admin/media-new.php0.401 s0.245 s-0.156 s3.66 MiB3.74 MiB+ 75.29 KiB
/wp-admin/edit-tags.php?taxonomy=category0.249 s0.212 s-0.037 s3.69 MiB3.76 MiB+ 76.2 KiB
/wp-admin/post-new.php?post_type=page0.685 s0.798 s+0.113 s5.54 MiB5.63 MiB+ 85.48 KiB
/wp-admin/options-discussion.php0.210 s0.326 s+0.116 s3.6 MiB3.73 MiB+ 139.57 KiB
/wp-admin/edit-comments.php0.221 s0.261 s+0.040 s3.7 MiB3.77 MiB+ 74.48 KiB
/0.286 s0.236 s-0.050 s3.6 MiB3.67 MiB+ 63.38 KiB
Average 0.353 s0.360 s+0.007 s4.01 MiB4.1 MiB+ 86.63 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
SVG
Language % Lines of code Comment lines Files
PHP55.8%1,80662427
SVG41.5%1,34535
JavaScript1.4%44466
JSON0.9%3002
CSS0.4%13154
HTML0.0%101
Total 3,239 688 45

PHP Code Analysis | More results »

Lines of code 1,640
Total complexity 300
Median class complexity 11.5
Median method complexity 2.0
Most complex class Css_Js_Manager_Admin
Most complex function Critical_Css_Type::save_meta_box_data()
Classes 20
Methods 125
Functions 6

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

Options wp_options 1

Custom Post Types 1

ID Name
pi_critical_cssCritical 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

[01-Sep-2022 21:32:07 UTC] PHP Notice:  Undefined variable: global_css in /wp-content/plugins/css-js-manager/admin/critical-css-type.php on line 144
See also: All tests for this plugin, How to Hide CSS JS Manager, Async JavaScript, Defer Render Blocking CSS Admin Menus and Meta Boxes