Gutenberg 14.4.0

Does Gutenberg work with WordPress 6.1 and PHP 7.4.8? A smoke test was performed on .


No PHP errors, warnings or notices
1JavaScript exceptions
All test pages loaded successfully
1Resource error (CSS, JS, images, fonts and so on.)
  • 1 net::ERR_FAILED

Memory usage: 894.76 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.139 seconds
The average page load time increased by this amount after activating the plugin.

WordPress version6.1
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 300,000+ page

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Pages 4

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=gutenberg%2Fgutenberg.php&plugin_status=all&paged=1&s&_wpnonce=f9c66661c6
Aspect after-activation
HTTP status 200
Load time 0.424 s
Memory usage 4.27 MiB
JS errors None
Resource errors None


Page screenshot: Gutenberg
URL /wp-admin/post-new.php?gutenberg-demo
Requested URL /wp-admin/admin.php?page=gutenberg
Aspect menu-item
HTTP status 200
Load time 2.121 s
Memory usage 7.16 MiB
JS errors
        "message": "Error: FastAverageColor: Error loading image \"\".\n    at Ml (/wp-content/plugins/gutenberg/build/block-library/index.min.js?ver=389e04bb287745eb2f68:28:23754)\n    at Image.l (/wp-content/plugins/gutenberg/build/block-library/index.min.js?ver=389e04bb287745eb2f68:28:26977)",
        "trace": null,
        "code": null
Resource errors
        "status": null,
        "statusText": null,
        "url": "",
        "errorString": "net::ERR_FAILED"

Gutenberg → Experiments

Page screenshot: Gutenberg → Experiments
URL /wp-admin/admin.php?page=gutenberg-experiments
Aspect menu-item
HTTP status 200
Load time 0.573 s
Memory usage 4.12 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
Aspect front-page
HTTP status 200
Load time 0.329 s
Memory usage 4.36 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.269 s0.859 s+0.590 s3.55 MiB4.22 MiB+ 682.16 KiB
/wp-admin/edit.php0.172 s0.255 s+0.083 s3.58 MiB4.31 MiB+ 746.98 KiB
/wp-admin/post-new.php0.875 s1.715 s+0.840 s5.48 MiB7.15 MiB+ 1.67 MiB
/wp-admin/upload.php0.733 s0.368 s-0.365 s3.49 MiB4.15 MiB+ 679.38 KiB
/wp-admin/options-writing.php0.156 s0.196 s+0.040 s3.48 MiB4.13 MiB+ 659.87 KiB
/wp-admin/media-new.php0.218 s0.262 s+0.044 s3.47 MiB4.13 MiB+ 680.34 KiB
/wp-admin/edit-tags.php?taxonomy=category0.164 s0.241 s+0.077 s3.5 MiB4.18 MiB+ 695.85 KiB
/wp-admin/post-new.php?post_type=page0.657 s0.964 s+0.307 s5.47 MiB7.13 MiB+ 1.66 MiB
/wp-admin/options-discussion.php0.290 s0.312 s+0.022 s3.47 MiB4.13 MiB+ 679.23 KiB
/wp-admin/edit-comments.php0.207 s0.202 s-0.005 s3.5 MiB4.18 MiB+ 699.15 KiB
/0.333 s0.228 s-0.105 s3.47 MiB4.36 MiB+ 907.39 KiB
Average 0.370 s0.509 s+0.139 s3.86 MiB4.73 MiB+ 894.76 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
Total 210,821 68,337 613

PHP Code Analysis | More results »

Lines of code 14,549
Total complexity 3,250
Median class complexity 15.0
Median method complexity 3.0
Most complex class WP_Theme_JSON_6_1
Most complex function gutenberg_render_block_core_navigation()
Classes 29
Methods 174
Functions 380


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.

Options wp_options 1

User Metadata wp_usermeta 1

PHP Error Log

The log file is empty.

See also: All tests for this plugin, How to Hide Gutenberg Admin Menus