Report - Connect Contact Form 7 and Mailchimp 0.5.61

Does "Contact Form 7 Extension For Mailchimp" work with WordPress 6.0 and PHP 7.4.8? A smoke test was performed on 2022-05-27 06:14:29 UTC.

Summary

Errors

	No PHP errors, warnings or notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors
	Looks good! No problems were detected.

Performance

Memory usage: 257.28 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	6.0
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

Plugin Info

Last updated	2026-02-26T04:46:00+00:00
Active installs	50,000+
WordPress.org page	https://wordpress.org/plugins/contact-form-7-mailchimp-extension/
Badges	Get badge code

Pages 5

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=contact-form-7-mailchimp-extension%2Fchimpmatic-lite.php&plugin_status=all&paged=1&s&_wpnonce=af5f1d6b58
Aspect	after-activation
HTTP status	200
Load time	0.956 s
Memory usage	5.08 MiB
JS errors	None
Resource errors	None

Contact

URL	/wp-admin/admin.php?page=wpcf7
Aspect	menu-item
HTTP status	200
Load time	0.333 s
Memory usage	5.91 MiB
JS errors	None
Resource errors	None

Contact → Add New

URL	/wp-admin/admin.php?page=wpcf7-new
Aspect	menu-item
HTTP status	200
Load time	0.727 s
Memory usage	4.27 MiB
JS errors	None
Resource errors	None

Contact → Integration

URL	/wp-admin/admin.php?page=wpcf7-integration
Aspect	menu-item
HTTP status	200
Load time	0.214 s
Memory usage	3.91 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.294 s
Memory usage	3.75 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.422 s	0.303 s	-0.119 s	3.72 MiB	3.99 MiB	+ 279.33 KiB
/wp-admin/edit.php	0.192 s	0.220 s	+0.028 s	3.75 MiB	4.06 MiB	+ 312.79 KiB
/wp-admin/post-new.php	0.777 s	0.964 s	+0.187 s	5.53 MiB	5.74 MiB	+ 215.3 KiB
/wp-admin/upload.php	0.417 s	0.389 s	-0.028 s	3.68 MiB	3.92 MiB	+ 248.47 KiB
/wp-admin/options-writing.php	0.298 s	0.171 s	-0.127 s	3.61 MiB	3.9 MiB	+ 292.79 KiB
/wp-admin/media-new.php	0.412 s	0.181 s	-0.231 s	3.66 MiB	3.9 MiB	+ 248.64 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.192 s	0.208 s	+0.016 s	3.68 MiB	3.93 MiB	+ 249.58 KiB
/wp-admin/post-new.php?post_type=page	0.621 s	0.860 s	+0.239 s	5.53 MiB	5.73 MiB	+ 210.95 KiB
/wp-admin/options-discussion.php	0.255 s	0.414 s	+0.159 s	3.59 MiB	3.9 MiB	+ 312.97 KiB
/wp-admin/edit-comments.php	0.224 s	0.251 s	+0.027 s	3.69 MiB	3.93 MiB	+ 248.48 KiB
/	0.289 s	0.236 s	-0.053 s	3.55 MiB	3.75 MiB	+ 210.84 KiB
Average	0.373 s	0.382 s	+0.009 s	4 MiB	4.25 MiB	+ 257.28 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

CSS

Language		%	Lines of code	Comment lines	Files
	PHP	69.2%	1,927	468	17
	CSS	25.1%	698	73	2
	JavaScript	5.7%	160	31	1
	SVG	0.0%	1	0	1
Total			2,786	572	21

PHP Code Analysis | More results »

Lines of code	1,766
Total complexity	297
Median class complexity	4.5
Median method complexity	1.0
Most complex class	chimp_db_log
Most complex function	wpcf7_mch_subscribe_remote()

Classes	2
Methods	4
Functions	80

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` 9

cf7_mch_
chimpmatic-update
mce_conten_panel_lateralbanner
mce_conten_panel_master
mce_conten_panel_welcome
mce_conten_tittle_master
mce_loyalty
mce_show_update_news
wpcf7

Custom Post Types 1

ID	Name
wpcf7_contact_form	Contact Forms

PHP Error Log

The log file is empty.

Connect Contact Form 7 and Mailchimp 0.5.61