WebP Express 0.25.9
Does WebP Express work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .
Summary
Errors
| 1 | PHP warnings |
| 4 | PHP deprecation warnings |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
Performance
Memory usage: 38.82 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 |
|---|---|
| PHP version | 8.1.12 |
| MySQL version | 10.6.10 |
| PHP memory limit | 512M |
Plugin Info
| Last updated | |
|---|---|
| Active installs | 300,000+ |
| WordPress.org page | https://wordpress.org/plugins/webp-express/ |
| Badges |
|
Pages 4
Plugins ‹ Test site — WordPress
| URL | /wp-admin/plugins.php?plugin_status=all&paged=1&s |
|---|---|
| Requested URL | /wp-admin/plugins.php?action=activate&plugin=webp-express%2Fwebp-express.php&plugin_status=all&paged=1&s&_wpnonce=9475df9923 |
| Aspect | after-activation |
| HTTP status | 200 |
| Load time | 0.406 s |
| Memory usage | 3.77 MiB |
| JS errors | None |
| Resource errors | None |
Media → WebP Express
| URL | /wp-admin/upload.php?page=webp_express_conversion_page |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.546 s |
| Memory usage | 3.74 MiB |
| JS errors | None |
| Resource errors | None |
Settings → WebP Express
| URL | /wp-admin/options-general.php?page=webp_express_settings_page |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 1.133 s |
| Memory usage | 4.1 MiB |
| JS errors | None |
| Resource errors | None |
Test site – Just another WordPress site
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.203 s |
| Memory usage | 4.13 MiB |
| JS errors | None |
| Resource errors | None |
Benchmark
| URL | Load time | Memory usage | ||||
|---|---|---|---|---|---|---|
| Inactive | Active | Change | Inactive | Active | Change | |
| /wp-admin/index.php | 0.489 s | 0.402 s | -0.087 s | 3.78 MiB | 3.82 MiB | + 43.75 KiB |
| /wp-admin/edit.php | 0.410 s | 0.386 s | -0.024 s | 3.78 MiB | 3.82 MiB | + 43.73 KiB |
| /wp-admin/post-new.php | 0.875 s | 0.984 s | +0.109 s | 6.31 MiB | 6.37 MiB | + 67.84 KiB |
| /wp-admin/upload.php | 0.507 s | 0.488 s | -0.019 s | 3.74 MiB | 3.76 MiB | + 26.33 KiB |
| /wp-admin/options-writing.php | 0.369 s | 0.354 s | -0.015 s | 3.71 MiB | 3.74 MiB | + 30.32 KiB |
| /wp-admin/media-new.php | 0.585 s | 0.377 s | -0.208 s | 3.7 MiB | 3.74 MiB | + 38.52 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.367 s | 0.555 s | +0.188 s | 3.71 MiB | 3.76 MiB | + 49.19 KiB |
| /wp-admin/post-new.php?post_type=page | 0.762 s | 0.763 s | +0.001 s | 6.3 MiB | 6.36 MiB | + 63.7 KiB |
| /wp-admin/options-discussion.php | 0.373 s | 0.352 s | -0.021 s | 3.71 MiB | 3.74 MiB | + 26.82 KiB |
| /wp-admin/edit-comments.php | 0.397 s | 0.362 s | -0.035 s | 3.73 MiB | 3.76 MiB | + 26.31 KiB |
| / | 0.327 s | 0.212 s | -0.115 s | 4.12 MiB | 4.13 MiB | + 10.54 KiB |
| Average | 0.496 s | 0.476 s | -0.021 s | 4.24 MiB | 4.27 MiB | + 38.82 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 | 79.0% | 12,054 | 4,182 | 146 | |
| JavaScript | 10.4% | 1,579 | 407 | 16 | |
| Markdown | 5.9% | 904 | 0 | 5 | |
| CSS | 4.1% | 630 | 74 | 4 | |
| SVG | 0.3% | 49 | 2 | 3 | |
| JSON | 0.2% | 34 | 0 | 1 | |
| Total | 15,250 | 4,665 | 175 | ||
PHP Code Analysis | More results »
| Lines of code | 9,926 |
|---|---|
| Total complexity | 2,010 |
| Median class complexity | 13.5 |
| Median method complexity | 2.0 |
| Most complex class | WebPExpress\Paths |
| Most complex function | WebPExpress\CLI::convert() |
| Classes | 68 |
|---|---|
| Methods | 468 |
| Functions | 47 |
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 3
- webp-express-messages-pending
- webp-express-migration-version
- webp-express-state
PHP Error Log 5 lines
[02-Dec-2025 21:53:46 UTC] PHP Warning: mkdir(): File exists in /wp-content/plugins/webp-express/vendor/rosell-dk/htaccess-capability-tester/src/SimpleTestFileLineUpper.php on line 14
[02-Dec-2025 21:53:48 UTC] PHP Deprecated: Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:53:48 UTC] PHP Deprecated: Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:53:58 UTC] PHP Deprecated: Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 21:53:58 UTC] PHP Deprecated: Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131