MainWP Child 6.0

Does MainWP Child work with WordPress 6.9.1 and PHP 8.1.12? A smoke test was performed on .

Summary

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

Memory usage: 274.23 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 version6.9.1
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 700,000+
WordPress.org page https://wordpress.org/plugins/mainwp-child/
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Pages 3

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=mainwp-child%2Fmainwp-child.php&plugin_status=all&paged=1&s&_wpnonce=2b8900535a
Aspect after-activation
HTTP status 200
Load time 0.559 s
Memory usage 5.54 MiB
JS errors None
Resource errors None

Settings → MainWP Child

Page screenshot: Settings → MainWP Child
URL /wp-admin/options-general.php?page=mainwp_child_tab
Aspect menu-item
HTTP status 200
Load time 0.996 s
Memory usage 4.23 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 0.203 s
Memory usage 4.29 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.381 s0.362 s-0.019 s3.78 MiB4.11 MiB+ 343.92 KiB
/wp-admin/edit.php0.371 s0.421 s+0.050 s3.78 MiB4.1 MiB+ 324.63 KiB
/wp-admin/post-new.php0.870 s0.928 s+0.058 s6.31 MiB6.63 MiB+ 333.52 KiB
/wp-admin/upload.php0.574 s0.427 s-0.147 s3.74 MiB3.98 MiB+ 247.55 KiB
/wp-admin/options-writing.php0.325 s0.296 s-0.029 s3.71 MiB3.96 MiB+ 248.66 KiB
/wp-admin/media-new.php0.511 s0.348 s-0.163 s3.7 MiB3.95 MiB+ 256.86 KiB
/wp-admin/edit-tags.php?taxonomy=category0.406 s0.449 s+0.043 s3.72 MiB3.97 MiB+ 262.13 KiB
/wp-admin/post-new.php?post_type=page0.695 s0.732 s+0.037 s6.3 MiB6.61 MiB+ 323.9 KiB
/wp-admin/options-discussion.php0.335 s0.403 s+0.068 s3.71 MiB3.95 MiB+ 244.54 KiB
/wp-admin/edit-comments.php0.327 s0.325 s-0.002 s3.74 MiB3.97 MiB+ 244.75 KiB
/0.274 s0.192 s-0.082 s4.11 MiB4.29 MiB+ 186.12 KiB
Average 0.461 s0.444 s-0.017 s4.24 MiB4.5 MiB+ 274.23 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
PO File
Language % Lines of code Comment lines Files
PHP82.8%43,53819,79997
PO File17.2%9,0234,4704
JSON0.0%601
Total 52,567 24,269 102

PHP Code Analysis | More results »

Lines of code 42,935
Total complexity 11,594
Median class complexity 71.0
Median method complexity 3.0
Most complex class MainWP_Child_Updraft_Plus_Backups
Most complex function MainWP_Child_Wordfence::get_diagnostics()
Classes 97
Methods 1,843
Functions 18

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 2

Options wp_options 13

User Metadata wp_usermeta 1

PHP Error Log 1 lines

[25-Feb-2026 14:06:13 UTC] PHP Notice:  Function _load_textdomain_just_in_time was called <strong>incorrectly</strong>. Translation loading for the <code>mainwp-child</code> domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the <code>init</code> action or later. Please see <a href="https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.7.0.) in /wp-includes/functions.php on line 6131
See also: All tests for this plugin, How to Hide the "MainWP Child" Admin Menu