CSS JS Manager, Async JavaScript, Defer Render Blocking CSS 2.4.49.34

Does "CSS JS Manager, Async JavaScript, Defer Render Blocking CSS" work with WordPress 6.6.2 and PHP 8.1.12? A smoke test was performed on .

Summary

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

Memory usage: 92.16 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 version6.6.2
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
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=d52319d47d
Aspect after-activation
HTTP status 200
Load time 0.318 s
Memory usage 3.56 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 0.388 s
Memory usage 3.54 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 0.185 s
Memory usage 3.6 MiB
JS errors None
Resource errors None

Critical CSS → Add New Post

Page screenshot: Critical CSS → Add New Post
URL /wp-admin/post-new.php?post_type=pi_critical_css
Aspect menu-item
HTTP status 200
Load time 0.272 s
Memory usage 3.6 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 0.239 s
Memory usage 3.51 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 0.801 s
Memory usage 5.84 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.375 s0.309 s-0.066 s3.47 MiB3.56 MiB+ 83.33 KiB
/wp-admin/edit.php0.222 s0.217 s-0.005 s3.54 MiB3.62 MiB+ 81.88 KiB
/wp-admin/post-new.php0.881 s0.664 s-0.217 s5.75 MiB5.84 MiB+ 93.22 KiB
/wp-admin/upload.php0.709 s0.548 s-0.161 s3.49 MiB3.55 MiB+ 64.48 KiB
/wp-admin/options-writing.php0.204 s0.293 s+0.089 s3.41 MiB3.53 MiB+ 127.28 KiB
/wp-admin/media-new.php0.264 s0.264 s+0.000 s3.4 MiB3.53 MiB+ 140.66 KiB
/wp-admin/edit-tags.php?taxonomy=category0.198 s0.202 s+0.004 s3.47 MiB3.56 MiB+ 87.34 KiB
/wp-admin/post-new.php?post_type=page0.630 s0.591 s-0.039 s5.75 MiB5.83 MiB+ 84.8 KiB
/wp-admin/options-discussion.php0.236 s0.275 s+0.039 s3.41 MiB3.53 MiB+ 128.97 KiB
/wp-admin/edit-comments.php0.224 s0.220 s-0.004 s3.49 MiB3.55 MiB+ 64.47 KiB
/0.328 s0.213 s-0.115 s3.45 MiB3.51 MiB+ 57.32 KiB
Average 0.388 s0.345 s-0.043 s3.88 MiB3.97 MiB+ 92.16 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
PHP55.2%1,76562226
SVG42.1%1,34535
JavaScript1.3%42486
JSON0.9%3002
CSS0.4%13154
HTML0.0%101
Total 3,196 688 44

PHP Code Analysis | More results »

Lines of code 1,599
Total complexity 285
Median class complexity 11.0
Median method complexity 2.0
Most complex class Css_Js_Manager_Admin
Most complex function Critical_Css_Type::save_meta_box_data()
Classes 19
Methods 119
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

[07-Oct-2024 11:53:27 UTC] PHP Warning:  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