Report - Newsletter 9.2.1 - PluginTests.com

Does Newsletter work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-03-31 10:36:18 UTC.

Summary

Errors

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

Performance

Memory usage: 379.78 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	6.9.4
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-04-24T07:03:00+00:00
Active installs	200,000+
WordPress.org page	https://wordpress.org/plugins/newsletter/
Badges	Get badge code

Pages 13

Welcome ‹ Test site — WordPress

URL	/wp-admin/admin.php?page=newsletter_main_welcome
Requested URL	/wp-admin/plugins.php?action=activate&plugin=newsletter%2Fplugin.php&plugin_status=all&paged=1&s&_wpnonce=0f85b84044
Aspect	after-activation
HTTP status	200
Load time	1.631 s
Memory usage	4.28 MiB
JS errors	None
Resource errors	None

URL	/wp-admin/admin.php?page=newsletter_main_index
Aspect	menu-item
HTTP status	200
Load time	0.889 s
Memory usage	4.2 MiB
JS errors	None
Resource errors	None

Newsletter → Subscription

URL	/wp-admin/admin.php?page=newsletter_subscription_options
Aspect	menu-item
HTTP status	200
Load time	1.112 s
Memory usage	4.17 MiB
JS errors	None
Resource errors	None

Newsletter → Forms

URL	/wp-admin/admin.php?page=newsletter_subscription_sources
Aspect	menu-item
HTTP status	200
Load time	0.549 s
Memory usage	4.19 MiB
JS errors	None
Resource errors	None

Newsletter → Newsletters

URL	/wp-admin/admin.php?page=newsletter_emails_index
Aspect	menu-item
HTTP status	200
Load time	0.495 s
Memory usage	4.12 MiB
JS errors	None
Resource errors	None

Newsletter → Subscribers

URL	/wp-admin/admin.php?page=newsletter_users_index
Aspect	menu-item
HTTP status	200
Load time	0.561 s
Memory usage	4.15 MiB
JS errors	None
Resource errors	None

Newsletter → Lists

URL	/wp-admin/admin.php?page=newsletter_subscription_lists
Aspect	menu-item
HTTP status	200
Load time	0.674 s
Memory usage	4.12 MiB
JS errors	None
Resource errors	None

Newsletter → Settings

URL	/wp-admin/admin.php?page=newsletter_main_main
Aspect	menu-item
HTTP status	200
Load time	0.648 s
Memory usage	4.17 MiB
JS errors	None
Resource errors	None

Newsletter → Addons

URL	/wp-admin/admin.php?page=newsletter_main_extensions
Aspect	menu-item
HTTP status	200
Load time	0.856 s
Memory usage	4.13 MiB
JS errors	None
Resource errors	None

Newsletter → Automated Pro

URL	/wp-admin/admin.php?page=newsletter_main_automated
Aspect	menu-item
HTTP status	200
Load time	0.720 s
Memory usage	4.12 MiB
JS errors	None
Resource errors	None

Newsletter → Autoresponder Pro

URL	/wp-admin/admin.php?page=newsletter_main_autoresponder
Aspect	menu-item
HTTP status	200
Load time	0.553 s
Memory usage	4.12 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.298 s
Memory usage	4.23 MiB
JS errors	None
Resource errors	None

Widgets ‹ Test site — WordPress

URL	/wp-admin/widgets.php
Aspect	new-sidebar-widgets
HTTP status	200
Load time	1.127 s
Memory usage	6.48 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.518 s	0.472 s	-0.046 s	3.78 MiB	4.16 MiB	+ 394.35 KiB
/wp-admin/edit.php	0.401 s	0.337 s	-0.064 s	3.78 MiB	4.21 MiB	+ 439.59 KiB
/wp-admin/post-new.php	0.851 s	0.921 s	+0.070 s	6.31 MiB	6.76 MiB	+ 459.69 KiB
/wp-admin/upload.php	0.494 s	0.576 s	+0.082 s	3.74 MiB	4.11 MiB	+ 381.34 KiB
/wp-admin/options-writing.php	0.357 s	0.419 s	+0.062 s	3.71 MiB	4.08 MiB	+ 379.84 KiB
/wp-admin/media-new.php	0.526 s	0.374 s	-0.152 s	3.7 MiB	4.08 MiB	+ 388.03 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.345 s	0.331 s	-0.014 s	3.72 MiB	4.11 MiB	+ 398.7 KiB
/wp-admin/post-new.php?post_type=page	0.758 s	0.752 s	-0.006 s	6.3 MiB	6.74 MiB	+ 453.17 KiB
/wp-admin/options-discussion.php	0.369 s	0.561 s	+0.192 s	3.71 MiB	4.08 MiB	+ 376.34 KiB
/wp-admin/edit-comments.php	0.372 s	0.395 s	+0.023 s	3.73 MiB	4.11 MiB	+ 381.34 KiB
/	0.317 s	0.229 s	-0.088 s	4.11 MiB	4.23 MiB	+ 125.19 KiB
Average	0.483 s	0.488 s	+0.005 s	4.23 MiB	4.61 MiB	+ 379.78 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	74.1%	31,243	4,088	232
	CSS	13.4%	5,657	573	23
	JSON	7.0%	2,950	0	21
	JavaScript	5.0%	2,105	189	7
	HTML	0.5%	200	14	3
Total			42,155	4,864	286

PHP Code Analysis | More results »

Lines of code	18,882
Total complexity	3,670
Median class complexity	25.0
Median method complexity	2.0
Most complex class	NewsletterControls
Most complex function	NewsletterUpgrade::run()

Classes	74
Methods	1,085
Functions	37

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.

Database Tables 7

wp_newsletter
wp_newsletter_emails
wp_newsletter_logs
wp_newsletter_sent
wp_newsletter_stats
wp_newsletter_user_logs
wp_newsletter_user_meta

Options `wp_options` 15

newsletter_addons
newsletter_addons_updated
newsletter_backup_0.0.0
newsletter_install_time
newsletter_logger_secret
newsletter_main
newsletter_main_steps
newsletter_news
newsletter_news_updated
newsletter_public_page_check
newsletter_statistics
newsletter_system_warnings
newsletter_version
widget_newsletterwidget
widget_newsletterwidgetminimal

Sidebar Widgets 2

ID	Name
newsletterwidget	Newsletter
newsletterwidgetminimal	Newsletter Minimal

PHP Error Log 1 lines

[31-Mar-2026 10:36:47 UTC] PHP Warning:  Undefined array key "search_page" in /wp-content/plugins/newsletter/users/index.php on line 112

Newsletter 9.2.1