Report - 51Degrees 4.5.8 - PluginTests.com

Does 51Degrees work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-05-07 11:11:24 UTC.

Summary

Errors

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

Performance

Memory usage: 129.03 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.031 seconds
The average page load time increased by this amount after activating the plugin.

Environment

WordPress version	6.9.4
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-08-31T04:19:00+00:00
Active installs	20+
WordPress.org page	https://wordpress.org/plugins/51degrees-optimize-by-device-location/
Badges	Get badge code

Pages 8

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=51degrees-optimize-by-device-location%2Ffiftyonedegrees.php&plugin_status=all&paged=1&s&_wpnonce=9452fc52e5
Aspect	after-activation
HTTP status	200
Load time	0.427 s
Memory usage	3.86 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees

URL	/wp-admin/options-general.php?page=51Degrees
Aspect	menu-item
HTTP status	200
Load time	0.296 s
Memory usage	3.84 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees → Google Analytics

URL	/wp-admin/options-general.php?page=51Degrees&tab=google-analytics
Aspect	menu-item-tab
HTTP status	200
Load time	0.265 s
Memory usage	3.82 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees → Properties

URL	/wp-admin/options-general.php?page=51Degrees&tab=properties
Aspect	menu-item-tab
HTTP status	200
Load time	0.252 s
Memory usage	3.82 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees → Robots.txt

URL	/wp-admin/options-general.php?page=51Degrees&tab=robots
Aspect	menu-item-tab
HTTP status	200
Load time	0.531 s
Memory usage	3.85 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees → Suspicious

URL	/wp-admin/options-general.php?page=51Degrees&tab=suspicious
Aspect	menu-item-tab
HTTP status	200
Load time	0.391 s
Memory usage	3.82 MiB
JS errors	None
Resource errors	None

Settings → 51Degrees → Help

URL	/wp-admin/options-general.php?page=51Degrees&tab=help
Aspect	menu-item-tab
HTTP status	200
Load time	1.814 s
Memory usage	3.82 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.273 s
Memory usage	4.17 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.433 s	0.595 s	+0.162 s	3.78 MiB	3.91 MiB	+ 136.54 KiB
/wp-admin/edit.php	0.363 s	0.304 s	-0.059 s	3.79 MiB	3.96 MiB	+ 180.95 KiB
/wp-admin/post-new.php	0.872 s	1.228 s	+0.356 s	6.31 MiB	6.54 MiB	+ 233.97 KiB
/wp-admin/upload.php	0.588 s	1.003 s	+0.415 s	3.74 MiB	3.84 MiB	+ 99.22 KiB
/wp-admin/options-writing.php	0.330 s	0.421 s	+0.091 s	3.72 MiB	3.82 MiB	+ 103.21 KiB
/wp-admin/media-new.php	0.510 s	0.317 s	-0.193 s	3.71 MiB	3.82 MiB	+ 111.41 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.324 s	0.301 s	-0.023 s	3.72 MiB	3.84 MiB	+ 121.77 KiB
/wp-admin/post-new.php?post_type=page	0.719 s	0.837 s	+0.118 s	6.3 MiB	6.46 MiB	+ 167.94 KiB
/wp-admin/options-discussion.php	0.354 s	0.340 s	-0.014 s	3.72 MiB	3.82 MiB	+ 99.4 KiB
/wp-admin/edit-comments.php	0.820 s	0.346 s	-0.474 s	3.74 MiB	3.85 MiB	+ 119.2 KiB
/	0.287 s	0.244 s	-0.043 s	4.12 MiB	4.17 MiB	+ 45.75 KiB
Average	0.509 s	0.540 s	+0.031 s	4.24 MiB	4.37 MiB	+ 129.03 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

Language		%	Lines of code	Comment lines	Files
	PHP	91.3%	3,569	1,147	23
	JavaScript	4.5%	177	59	3
	YAML	1.8%	70	53	3
	JSON	1.3%	52	0	3
	CSS	1.0%	41	1	1
Total			3,909	1,260	33

PHP Code Analysis | More results »

Lines of code	2,942
Total complexity	574
Median class complexity	24.0
Median method complexity	3.0
Most complex class	FiftyoneService
Most complex function	FiftyOneDegreesRobotsTxt::enforce_crawler_redirect()

Classes	15
Methods	134
Functions	5

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` 15

fiftyonedegrees_pipeline_enable
fiftyonedegrees_resource_key
fiftyonedegrees_resource_key_pipeline
fiftyonedegrees_robots_custom_bottom
fiftyonedegrees_robots_custom_tdl
fiftyonedegrees_robots_custom_top
fiftyonedegrees_robots_enable
fiftyonedegrees_robots_enforce
fiftyonedegrees_robots_plaintext_cache
fiftyonedegrees_robots_redirect_url
fiftyonedegrees_robots_standard_tdl_selected
fiftyonedegrees_suspicious_enable
fiftyonedegrees_suspicious_redirect_url
fiftyonedegrees_suspicious_requests
fiftyonedegrees_suspicious_window

PHP Error Log 4 lines

[07-May-2026 11:11:54 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[07-May-2026 11:11:56 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[07-May-2026 11:12:01 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[07-May-2026 11:12:04 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133

51Degrees 4.5.8