Contact Form 7 Extension For Mailchimp 0.5.26

Does "Contact Form 7 Extension For Mailchimp" work with WordPress 5.5.1 and PHP 7.4.8? A smoke test was performed on .

Summary

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

Memory usage: 196.8 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 version5.5.1
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 70,000+
WordPress.org page https://wordpress.org/plugins/contact-form-7-mailchimp-extension/
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Pages 5

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=contact-form-7-mailchimp-extension%2Fchimpmatic-lite.php&plugin_status=all&paged=1&s&_wpnonce=cba1c10e39
Aspect after-activation
HTTP status 200
Load time 1.462 s
Memory usage 3.91 MiB
JS errors None
Resource errors None

Contact

Page screenshot: Contact
URL /wp-admin/admin.php?page=wpcf7
Aspect menu-item
HTTP status 200
Load time 0.294 s
Memory usage 4.51 MiB
JS errors None
Resource errors None

Contact → Add New

Page screenshot: Contact → Add New
URL /wp-admin/admin.php?page=wpcf7-new
Aspect menu-item
HTTP status 200
Load time 1.610 s
Memory usage 3.17 MiB
JS errors None
Resource errors None

Contact → Integration

Page screenshot: Contact → Integration
URL /wp-admin/admin.php?page=wpcf7-integration
Aspect menu-item
HTTP status 200
Load time 0.209 s
Memory usage 2.79 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 0.294 s
Memory usage 2.74 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.464 s0.426 s-0.038 s2.75 MiB2.94 MiB+ 186.68 KiB
/wp-admin/edit.php0.207 s0.258 s+0.051 s2.8 MiB2.98 MiB+ 192.16 KiB
/wp-admin/post-new.php1.545 s1.969 s+0.424 s4.54 MiB4.72 MiB+ 175.2 KiB
/wp-admin/upload.php0.771 s0.466 s-0.305 s2.63 MiB2.81 MiB+ 185.55 KiB
/wp-admin/options-writing.php0.170 s0.187 s+0.017 s2.64 MiB2.84 MiB+ 197.2 KiB
/wp-admin/media-new.php0.210 s0.198 s-0.012 s2.6 MiB2.79 MiB+ 185.72 KiB
/wp-admin/edit-tags.php?taxonomy=category0.192 s0.207 s+0.015 s2.64 MiB2.89 MiB+ 250.66 KiB
/wp-admin/post-new.php?post_type=page1.452 s1.576 s+0.124 s4.53 MiB4.7 MiB+ 170.85 KiB
/wp-admin/options-discussion.php0.345 s0.456 s+0.111 s2.61 MiB2.79 MiB+ 186.05 KiB
/wp-admin/edit-comments.php0.313 s0.244 s-0.069 s2.65 MiB2.89 MiB+ 249.58 KiB
/0.332 s0.233 s-0.099 s2.56 MiB2.74 MiB+ 185.2 KiB
Average 0.546 s0.565 s+0.020 s3 MiB3.19 MiB+ 196.8 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

Custom Post Types 1

ID Name
wpcf7_contact_formContact Forms

PHP Error Log 1 lines

[22-Oct-2020 00:18:13 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
See also: All tests for this plugin, How to Hide Contact Form 7 Extension For Mailchimp Admin Menus