Report - 51Degrees 4.5.10 - PluginTests.com

Does 51Degrees work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-05-08 21:09:57 UTC.

Summary

Errors

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

Performance

Memory usage: 127.83 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	2026-08-31T04:19:00+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=45f265a26d
Aspect	after-activation
HTTP status	200
Load time	0.420 s
Memory usage	3.85 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	0.293 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	0.647 s
Memory usage	3.81 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	0.428 s
Memory usage	3.81 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	0.628 s
Memory usage	3.84 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	0.269 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	1.749 s
Memory usage	3.81 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.290 s
Memory usage	4.15 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.993 s	1.106 s	+0.113 s	3.78 MiB	3.91 MiB	+ 132.91 KiB
/wp-admin/edit.php	0.447 s	0.429 s	-0.018 s	3.79 MiB	3.96 MiB	+ 175.75 KiB
/wp-admin/post-new.php	0.809 s	1.217 s	+0.408 s	6.31 MiB	6.53 MiB	+ 230.34 KiB
/wp-admin/upload.php	0.511 s	0.469 s	-0.042 s	3.74 MiB	3.84 MiB	+ 98.47 KiB
/wp-admin/options-writing.php	0.318 s	0.326 s	+0.008 s	3.71 MiB	3.81 MiB	+ 103.21 KiB
/wp-admin/media-new.php	0.521 s	0.305 s	-0.216 s	3.7 MiB	3.81 MiB	+ 111.41 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.334 s	0.307 s	-0.027 s	3.72 MiB	3.83 MiB	+ 121.77 KiB
/wp-admin/post-new.php?post_type=page	1.309 s	0.794 s	-0.515 s	6.3 MiB	6.46 MiB	+ 167.94 KiB
/wp-admin/options-discussion.php	0.465 s	0.594 s	+0.129 s	3.71 MiB	3.81 MiB	+ 99.4 KiB
/wp-admin/edit-comments.php	0.329 s	0.742 s	+0.413 s	3.73 MiB	3.85 MiB	+ 119.21 KiB
/	0.306 s	0.239 s	-0.067 s	4.11 MiB	4.15 MiB	+ 45.75 KiB
Average	0.577 s	0.593 s	+0.017 s	4.24 MiB	4.36 MiB	+ 127.83 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%	3,582	1,149	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			3,922	1,262	33

PHP Code Analysis | More results »

Lines of code	2,971
Total complexity	580
Median class complexity	24.0
Median method complexity	3.0
Most complex class	FiftyoneService
Most complex function	FiftyOneDegreesRobotsTxt::enforce_crawler_redirect()

Classes	15
Methods	136
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

[08-May-2026 21:10:33 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[08-May-2026 21:10:36 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[08-May-2026 21:10:41 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[08-May-2026 21:10:44 UTC] PHP Deprecated:  stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133

51Degrees 4.5.10