Report - Kustom Checkout for WooCommerce 2.16.1

Does "Kustom Checkout for WooCommerce" work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-03 14:41:26 UTC.

Summary

Errors

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

Performance

Memory usage: 3.3 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 version	6.9
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2025-12-08T09:15:00+00:00
Active installs	10,000+
WordPress.org page	https://wordpress.org/plugins/klarna-checkout-for-woocommerce/
Badges	Get badge code

Pages 2

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=klarna-checkout-for-woocommerce%2Fklarna-checkout-for-woocommerce.php&plugin_status=all&paged=1&s&_wpnonce=84e8aa64ec
Aspect	after-activation
HTTP status	200
Load time	0.356 s
Memory usage	3.74 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.191 s
Memory usage	4.11 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.425 s	0.346 s	-0.079 s	3.77 MiB	3.78 MiB	+ 8.8 KiB
/wp-admin/edit.php	0.368 s	0.291 s	-0.077 s	3.78 MiB	3.79 MiB	+ 8.8 KiB
/wp-admin/post-new.php	0.872 s	0.930 s	+0.058 s	6.3 MiB	6.32 MiB	+ 13.23 KiB
/wp-admin/upload.php	0.613 s	0.466 s	-0.147 s	3.74 MiB	3.73 MiB	- 8.61 KiB
/wp-admin/options-writing.php	0.338 s	0.300 s	-0.038 s	3.71 MiB	3.7 MiB	- 4.62 KiB
/wp-admin/media-new.php	0.528 s	0.331 s	-0.197 s	3.7 MiB	3.7 MiB	+ 3.58 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.337 s	0.309 s	-0.028 s	3.71 MiB	3.73 MiB	+ 14.25 KiB
/wp-admin/post-new.php?post_type=page	0.692 s	0.609 s	-0.083 s	6.29 MiB	6.3 MiB	+ 8.75 KiB
/wp-admin/options-discussion.php	0.345 s	0.391 s	+0.046 s	3.71 MiB	3.7 MiB	- 8.12 KiB
/wp-admin/edit-comments.php	0.319 s	0.338 s	+0.019 s	3.73 MiB	3.72 MiB	- 8.62 KiB
/	0.412 s	0.204 s	-0.208 s	4.1 MiB	4.11 MiB	+ 8.84 KiB
Average	0.477 s	0.410 s	-0.067 s	4.23 MiB	4.24 MiB	+ 3.3 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
	PHP	55.4%	6,539	3,300	58
	PO File	28.9%	3,415	1,510	10
	JavaScript	6.7%	788	106	5
	CSS	5.6%	660	50	3
	TypeScript	2.4%	285	181	3
	JSON	0.6%	69	0	3
	SVG	0.4%	46	0	2
Total			11,802	5,147	84

PHP Code Analysis | More results »

Lines of code	6,457
Total complexity	1,287
Median class complexity	10.0
Median method complexity	2.0
Most complex class	KCO_Gateway
Most complex function	KCO_Fields::fields()

Classes	53
Methods	347
Functions	28

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.

No new entries found.

PHP Error Log 4 lines

[03-Dec-2025 14:41:46 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
[03-Dec-2025 14:41:46 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
[03-Dec-2025 14:41:55 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
[03-Dec-2025 14:41:55 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