Report - Contact Form 7 Extension For Mailchimp 0.5.24

Does "Contact Form 7 Extension For Mailchimp" work with WordPress 5.5.1 and PHP 7.4.8? A smoke test was performed on 2020-09-29 02:36:02 UTC.

Summary

Errors

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

Performance

Memory usage: 209.02 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	5.5.1
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

Plugin Info

Last updated	2025-10-24T23:50:00+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=3cc90ebef9
Aspect	after-activation
HTTP status	200
Load time	1.148 s
Memory usage	3.91 MiB
JS errors	None
Resource errors	None

Contact

URL	/wp-admin/admin.php?page=wpcf7
Aspect	menu-item
HTTP status	200
Load time	0.348 s
Memory usage	3.03 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	2.051 s
Memory usage	2.97 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	0.237 s
Memory usage	2.79 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.322 s
Memory usage	2.74 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.519 s	0.476 s	-0.043 s	2.75 MiB	2.94 MiB	+ 187.18 KiB
/wp-admin/edit.php	0.258 s	0.260 s	+0.002 s	2.8 MiB	2.98 MiB	+ 192.66 KiB
/wp-admin/post-new.php	1.651 s	2.162 s	+0.511 s	4.54 MiB	4.83 MiB	+ 296.95 KiB
/wp-admin/upload.php	0.650 s	0.517 s	-0.133 s	2.63 MiB	2.81 MiB	+ 186.05 KiB
/wp-admin/options-writing.php	0.222 s	0.199 s	-0.023 s	2.64 MiB	2.79 MiB	+ 154.03 KiB
/wp-admin/media-new.php	0.236 s	0.218 s	-0.018 s	2.6 MiB	2.79 MiB	+ 186.22 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.220 s	0.251 s	+0.031 s	2.64 MiB	2.89 MiB	+ 251.16 KiB
/wp-admin/post-new.php?post_type=page	1.450 s	1.563 s	+0.113 s	4.53 MiB	4.75 MiB	+ 224.55 KiB
/wp-admin/options-discussion.php	0.346 s	0.696 s	+0.350 s	2.61 MiB	2.79 MiB	+ 186.55 KiB
/wp-admin/edit-comments.php	0.258 s	0.266 s	+0.008 s	2.65 MiB	2.89 MiB	+ 250.08 KiB
/	0.995 s	0.263 s	-0.732 s	2.56 MiB	2.74 MiB	+ 183.77 KiB
Average	0.619 s	0.625 s	+0.006 s	3 MiB	3.2 MiB	+ 209.02 KiB

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 1 lines

[29-Sep-2020 02:36:21 UTC] PHP Notice:  Trying to access array offset on value of type null in /wp-content/plugins/contact-form-7-mailchimp-extension/lib/find.php on line 157

Contact Form 7 Extension For Mailchimp 0.5.24