Report - Advanced Custom Fields 6.6.2

Does Advanced Custom Fields work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-02 20:59:32 UTC.

Summary

Errors

4	PHP deprecation warnings
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 1.36 MiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.427 seconds
The average page load time increased by this amount after activating the plugin.

Environment

WordPress version	6.9
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-03-03T18:16:00+00:00
Active installs	2,000,000+
WordPress.org page	https://wordpress.org/plugins/advanced-custom-fields/
Badges	Get badge code

Pages 7

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=advanced-custom-fields%2Facf.php&plugin_status=all&paged=1&s&_wpnonce=f57fd0111d
Aspect	after-activation
HTTP status	200
Load time	0.478 s
Memory usage	5.32 MiB
JS errors	None
Resource errors	None

ACF

URL	/wp-admin/edit.php?post_type=acf-field-group
Aspect	menu-item
HTTP status	200
Load time	0.466 s
Memory usage	5.1 MiB
JS errors	None
Resource errors	None

ACF → Post Types

URL	/wp-admin/edit.php?post_type=acf-post-type
Aspect	menu-item
HTTP status	200
Load time	0.570 s
Memory usage	5.05 MiB
JS errors	None
Resource errors	None

ACF → Taxonomies

URL	/wp-admin/edit.php?post_type=acf-taxonomy
Aspect	menu-item
HTTP status	200
Load time	0.562 s
Memory usage	5.05 MiB
JS errors	None
Resource errors	None

ACF → Options Pages

URL	/wp-admin/edit.php?post_type=acf-field-group&page=acf_options_preview
Aspect	menu-item
HTTP status	200
Load time	1.203 s
Memory usage	5.01 MiB
JS errors	None
Resource errors	None

ACF → Tools

URL	/wp-admin/edit.php?post_type=acf-field-group&page=acf-tools
Aspect	menu-item
HTTP status	200
Load time	0.479 s
Memory usage	5.05 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.381 s
Memory usage	5.29 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.548 s	0.474 s	-0.074 s	3.78 MiB	5.06 MiB	+ 1.28 MiB
/wp-admin/edit.php	0.371 s	0.305 s	-0.066 s	3.78 MiB	5.09 MiB	+ 1.3 MiB
/wp-admin/post-new.php	0.857 s	3.282 s	+2.425 s	6.31 MiB	8.05 MiB	+ 1.74 MiB
/wp-admin/upload.php	0.646 s	0.982 s	+0.336 s	3.74 MiB	5.11 MiB	+ 1.37 MiB
/wp-admin/options-writing.php	0.335 s	0.338 s	+0.003 s	3.71 MiB	4.96 MiB	+ 1.25 MiB
/wp-admin/media-new.php	0.500 s	0.320 s	-0.180 s	3.7 MiB	4.96 MiB	+ 1.26 MiB
/wp-admin/edit-tags.php?taxonomy=category	0.428 s	0.402 s	-0.026 s	3.72 MiB	5.06 MiB	+ 1.35 MiB
/wp-admin/post-new.php?post_type=page	0.686 s	2.899 s	+2.213 s	6.3 MiB	8.04 MiB	+ 1.74 MiB
/wp-admin/options-discussion.php	0.338 s	0.436 s	+0.098 s	3.72 MiB	4.96 MiB	+ 1.25 MiB
/wp-admin/edit-comments.php	0.323 s	0.353 s	+0.030 s	3.74 MiB	4.98 MiB	+ 1.24 MiB
/	0.269 s	0.202 s	-0.067 s	4.12 MiB	5.3 MiB	+ 1.18 MiB
Average	0.482 s	0.908 s	+0.427 s	4.24 MiB	5.6 MiB	+ 1.36 MiB

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.

PO File

PHP

Language		%	Lines of code	Comment lines	Files
	PO File	84.6%	165,986	96,899	50
	PHP	15.0%	29,407	22,043	223
	SVG	0.2%	413	0	108
	JavaScript	0.2%	403	225	1
	CSS	0.0%	26	1	1
	JSON	0.0%	26	0	1
	Markdown	0.0%	15	0	1
Total			196,276	119,168	385

PHP Code Analysis | More results »

Lines of code	25,180
Total complexity	5,030
Median class complexity	18.0
Median method complexity	2.0
Most complex class	ACF_Post_Type
Most complex function	ACF\Site_Health\Site_Health::get_site_health_values()

Classes	121
Methods	1,011
Functions	567

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.

Options `wp_options` 3

acf_first_activated_version
acf_site_health
acf_version

User Metadata `wp_usermeta` 3

manageedit-acf-post-typecolumnshidden
acf_user_settings
manageedit-acf-taxonomycolumnshidden

Custom Post Types 4

ID	Name
acf-taxonomy	Taxonomies
acf-post-type	Post Types
acf-field-group	Field Groups
acf-field	Fields

PHP Error Log 4 lines

[02-Dec-2025 21:00:07 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:00:07 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:00:19 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:00:19 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131

Advanced Custom Fields 6.6.2