51Degrees 4.4.1
Does "51Degrees - Optimize by Device & Location" work with WordPress 6.9.1 and PHP 8.1.12? A smoke test was performed on .
Summary
Errors
| 2 | PHP deprecation warnings |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
Performance
Memory usage: 68.2 KiB
The average PHP memory usage increased by this amount after activating by the plugin.
Page speed impact:
0.219 seconds
The average page load time increased by this amount after activating the plugin.
Environment
| WordPress version | 6.9.1 |
|---|---|
| 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=aa45d16b87 |
| Aspect | after-activation |
| HTTP status | 200 |
| Load time | 0.419 s |
| Memory usage | 4 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 | 0.277 s |
| Memory usage | 3.79 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 | 0.260 s |
| Memory usage | 3.76 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 | 0.257 s |
| Memory usage | 3.76 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 | 2.246 s |
| Memory usage | 3.76 MiB |
| JS errors | None |
| Resource errors | None |
Test site – Just another WordPress site
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.447 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 | 0.439 s | 0.720 s | +0.281 s | 3.78 MiB | 3.84 MiB | + 64.96 KiB |
| /wp-admin/edit.php | 0.365 s | 0.502 s | +0.137 s | 3.78 MiB | 3.85 MiB | + 65.33 KiB |
| /wp-admin/post-new.php | 0.864 s | 1.435 s | +0.571 s | 6.31 MiB | 6.47 MiB | + 162.48 KiB |
| /wp-admin/upload.php | 0.740 s | 0.672 s | -0.068 s | 3.74 MiB | 3.79 MiB | + 48.91 KiB |
| /wp-admin/options-writing.php | 0.327 s | 0.839 s | +0.512 s | 3.71 MiB | 3.76 MiB | + 52.91 KiB |
| /wp-admin/media-new.php | 0.506 s | 0.550 s | +0.044 s | 3.7 MiB | 3.76 MiB | + 61.1 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.444 s | 0.494 s | +0.050 s | 3.72 MiB | 3.79 MiB | + 71.46 KiB |
| /wp-admin/post-new.php?post_type=page | 0.694 s | 1.175 s | +0.481 s | 6.3 MiB | 6.39 MiB | + 92.27 KiB |
| /wp-admin/options-discussion.php | 0.339 s | 0.619 s | +0.280 s | 3.71 MiB | 3.76 MiB | + 49.09 KiB |
| /wp-admin/edit-comments.php | 0.329 s | 0.486 s | +0.157 s | 3.73 MiB | 3.78 MiB | + 48.91 KiB |
| / | 0.278 s | 0.239 s | -0.039 s | 4.11 MiB | 4.14 MiB | + 32.75 KiB |
| Average | 0.484 s | 0.703 s | +0.219 s | 4.24 MiB | 4.3 MiB | + 68.2 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 | 84.6% | 1,933 | 749 | 13 | |
| JavaScript | 10.9% | 248 | 62 | 4 | |
| JSON | 2.3% | 53 | 0 | 3 | |
| CSS | 2.2% | 50 | 1 | 2 | |
| Total | 2,284 | 812 | 22 | ||
PHP Code Analysis | More results »
| Lines of code | 1,687 |
|---|---|
| Total complexity | 230 |
| 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 | 69 |
| 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 2 lines
[14-Feb-2026 04:18:02 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
[14-Feb-2026 04:18:17 UTC] PHP Deprecated: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /wp-includes/functions.wp-scripts.php on line 133
See also: All tests for this plugin