51Degrees 4.5.5
Does "51Degrees - Optimize by Device & Location" work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on .
Summary
Errors
| 4 | PHP deprecation warnings |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
Performance
Memory usage: 58 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 | |
|---|---|
| Active installs | 20+ |
| WordPress.org page | https://wordpress.org/plugins/51degrees-optimize-by-device-location/ |
| Badges |
|
Pages 6
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=de3a459603 |
| Aspect | after-activation |
| HTTP status | 200 |
| Load time | 0.481 s |
| Memory usage | 3.92 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 | 0.347 s |
| Memory usage | 3.77 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 | 0.303 s |
| Memory usage | 3.75 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 | 0.329 s |
| Memory usage | 3.75 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 | 1.967 s |
| Memory usage | 3.75 MiB |
| JS errors | None |
| Resource errors | None |
Test site – Just another WordPress site
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.308 s |
| Memory usage | 4.14 MiB |
| JS errors | None |
| Resource errors | None |
Benchmark
| URL | Load time | Memory usage | ||||
|---|---|---|---|---|---|---|
| Inactive | Active | Change | Inactive | Active | Change | |
| /wp-admin/index.php | 0.538 s | 0.661 s | +0.123 s | 3.78 MiB | 3.84 MiB | + 69.13 KiB |
| /wp-admin/edit.php | 0.436 s | 0.442 s | +0.006 s | 3.78 MiB | 3.83 MiB | + 49.49 KiB |
| /wp-admin/post-new.php | 1.180 s | 1.216 s | +0.036 s | 6.31 MiB | 6.45 MiB | + 146.65 KiB |
| /wp-admin/upload.php | 0.603 s | 0.439 s | -0.164 s | 3.74 MiB | 3.79 MiB | + 52.82 KiB |
| /wp-admin/options-writing.php | 0.413 s | 0.601 s | +0.188 s | 3.71 MiB | 3.75 MiB | + 36.81 KiB |
| /wp-admin/media-new.php | 0.664 s | 0.365 s | -0.299 s | 3.7 MiB | 3.75 MiB | + 45.01 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.467 s | 0.340 s | -0.127 s | 3.72 MiB | 3.77 MiB | + 55.37 KiB |
| /wp-admin/post-new.php?post_type=page | 1.107 s | 0.932 s | -0.175 s | 6.3 MiB | 6.38 MiB | + 80.6 KiB |
| /wp-admin/options-discussion.php | 0.495 s | 0.465 s | -0.030 s | 3.71 MiB | 3.75 MiB | + 33 KiB |
| /wp-admin/edit-comments.php | 0.414 s | 0.523 s | +0.109 s | 3.73 MiB | 3.77 MiB | + 32.81 KiB |
| / | 0.335 s | 0.257 s | -0.078 s | 4.11 MiB | 4.14 MiB | + 36.36 KiB |
| Average | 0.605 s | 0.567 s | -0.037 s | 4.24 MiB | 4.29 MiB | + 58 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.
| Language | % | Lines of code | Comment lines | Files | |
|---|---|---|---|---|---|
| PHP | 88.4% | 1,984 | 778 | 13 | |
| JavaScript | 7.9% | 177 | 59 | 3 | |
| JSON | 1.9% | 43 | 0 | 2 | |
| CSS | 1.8% | 41 | 1 | 1 | |
| Total | 2,245 | 838 | 19 | ||
PHP Code Analysis | More results »
| Lines of code | 1,738 |
|---|---|
| Total complexity | 241 |
| Median class complexity | 19.5 |
| Median method complexity | 2.0 |
| Most complex class | Fiftyonedegrees_Google_Analytics |
| Most complex function | Fiftyonedegrees_Custom_Dimensions::prepare_items() |
| Classes | 8 |
|---|---|
| Methods | 72 |
| Functions | 3 |
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 2
- fiftyonedegrees_resource_key
- fiftyonedegrees_resource_key_pipeline
PHP Error Log 4 lines
[28-Mar-2026 00:07:29 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[28-Mar-2026 00:07:32 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[28-Mar-2026 00:07:37 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[28-Mar-2026 00:07:41 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
See also: All tests for this plugin