Klaviyo 3.7.0
Does Klaviyo work with WordPress 6.8.2 and PHP 8.1.12? A smoke test was performed on .
Summary
Errors
| 6 | PHP deprecation warnings |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
Performance
Memory usage: 59.02 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 | 6.8.2 |
|---|---|
| PHP version | 8.1.12 |
| MySQL version | 10.6.10 |
| PHP memory limit | 512M |
Plugin Info
| Last updated | |
|---|---|
| Active installs | 90,000+ |
| WordPress.org page | https://wordpress.org/plugins/klaviyo/ |
| Badges |
|
Pages 5
Plugins ‹ Test site — WordPress
| URL | /wp-admin/plugins.php?plugin_status=all&paged=1&s |
|---|---|
| Requested URL | /wp-admin/plugins.php?action=activate&plugin=klaviyo%2Fklaviyo.php&plugin_status=all&paged=1&s&_wpnonce=0e3c6f358d |
| Aspect | after-activation |
| HTTP status | 200 |
| Load time | 0.278 s |
| Memory usage | 3.58 MiB |
| JS errors | None |
| Resource errors | None |
Klaviyo
| URL | /wp-admin/admin.php?page=klaviyo_settings |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.261 s |
| Memory usage | 3.54 MiB |
| JS errors | None |
| Resource errors | None |
Klaviyo → Help
| URL | /wp-admin/admin.php?page=klaviyo_help |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.154 s |
| Memory usage | 3.54 MiB |
| JS errors | None |
| Resource errors | None |
Test site – Just another WordPress site
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.213 s |
| Memory usage | 3.48 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 | 1.309 s |
| Memory usage | 5.89 MiB |
| JS errors | None |
| Resource errors | None |
Benchmark
| URL | Load time | Memory usage | ||||
|---|---|---|---|---|---|---|
| Inactive | Active | Change | Inactive | Active | Change | |
| /wp-admin/index.php | 0.322 s | 0.273 s | -0.049 s | 3.51 MiB | 3.56 MiB | + 54.8 KiB |
| /wp-admin/edit.php | 0.198 s | 0.224 s | +0.026 s | 3.57 MiB | 3.62 MiB | + 52.45 KiB |
| /wp-admin/post-new.php | 0.772 s | 0.627 s | -0.145 s | 6.06 MiB | 6.18 MiB | + 126.36 KiB |
| /wp-admin/upload.php | 0.557 s | 0.339 s | -0.218 s | 3.52 MiB | 3.56 MiB | + 35.04 KiB |
| /wp-admin/options-writing.php | 0.201 s | 0.197 s | -0.004 s | 3.5 MiB | 3.54 MiB | + 39.03 KiB |
| /wp-admin/media-new.php | 0.266 s | 0.227 s | -0.039 s | 3.49 MiB | 3.54 MiB | + 47.23 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.260 s | 0.219 s | -0.041 s | 3.5 MiB | 3.56 MiB | + 57.9 KiB |
| /wp-admin/post-new.php?post_type=page | 0.602 s | 0.728 s | +0.126 s | 6.05 MiB | 6.17 MiB | + 121.88 KiB |
| /wp-admin/options-discussion.php | 0.271 s | 0.298 s | +0.027 s | 3.5 MiB | 3.54 MiB | + 35.53 KiB |
| /wp-admin/edit-comments.php | 0.201 s | 0.201 s | +0.000 s | 3.52 MiB | 3.56 MiB | + 35.03 KiB |
| / | 0.313 s | 0.198 s | -0.115 s | 3.43 MiB | 3.48 MiB | + 43.92 KiB |
| Average | 0.360 s | 0.321 s | -0.039 s | 3.97 MiB | 4.03 MiB | + 59.02 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 | 83.1% | 2,160 | 1,351 | 24 | |
| JavaScript | 9.4% | 245 | 82 | 6 | |
| CSS | 5.8% | 150 | 19 | 1 | |
| JSON | 1.3% | 34 | 0 | 1 | |
| SVG | 0.4% | 11 | 0 | 4 | |
| Total | 2,600 | 1,452 | 36 | ||
PHP Code Analysis | More results »
| Lines of code | 2,075 |
|---|---|
| Total complexity | 350 |
| Median class complexity | 11.0 |
| Median method complexity | 1.0 |
| Most complex class | WPKlaviyoAdmin |
| Most complex function | wck_build_cart_data() |
| Classes | 14 |
|---|---|
| Methods | 94 |
| Functions | 44 |
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 4
- klaviyo_activation_time
- widget_klaviyo_emailsignup_widget
- widget_klaviyo_embedemailsignup_widget
- woocommerce_klaviyo_version
Sidebar Widgets 2
| ID | Name |
|---|---|
| klaviyo_emailsignup_widget | Klaviyo: Legacy Email Sign Up |
| klaviyo_embedemailsignup_widget | Klaviyo: Email Sign Up |
PHP Error Log 6 lines
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79
[15-Jul-2025 21:40:37 UTC] PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-content/plugins/klaviyo/includes/class-wck-options.php on line 79