Reduce file size by shortening URLs and safely removing all standard comments and unnecessary whitespace from an HTML document.
| Code | Message | Location | Category | |
|---|---|---|---|---|
| ERROR | plugin_header_no_license | Missing "License" in Plugin Header. Please update your Plugin Header with a valid GPLv2 (or later) compatible license. | — | Plugin Repo |
| ERROR | WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound | Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$wp_html_compression_run". | 14:1 | Plugin Repo |
| ERROR | WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound | Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "wp_html_compression_start". | 18:1 | Plugin Repo |
| ERROR | WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound | Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$wp_html_compression_run". | 24:9 | Plugin Repo |
| ERROR | outdated_tested_upto_header | Tested up to: 3.5 < 6.8. The "Tested up to" value in your plugin is not set to the current version of WordPress. This means your plugin will not show up in searches, as we require plugins to be compatible and documented as tested up to the most recent version of WordPress. | — | Plugin Repo |
| ERROR | no_license | Missing "License". Please update your readme with a valid GPLv2 (or later) compatible license. | — | — |
| ERROR | trunk_stable_tag | Incorrect Stable Tag. It's recommended not to use "Stable Tag: trunk". Your Stable Tag is meant to be the stable version of your plugin and it needs to be exactly the same with the Version in your main plugin file's header. Any mismatch can prevent users from downloading the correct plugin files from WordPress.org. | — | Plugin Repo |
| ERROR | WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound | Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "html_minify_buffer". | 220:1 | Plugin Repo |
| WARNING | WordPress.Security.ValidatedSanitizedInput.MissingUnslash | $_SERVER['REQUEST_URI'] not unslashed before sanitization. Use wp_unslash() or similar | 195:36 | Security |
| WARNING | readme_parser_warnings_ignored_tags | One or more tags were ignored. The following tags are not permitted: "plugin", "wordpress" | — | Plugin Repo |
| 15.11.2025, 07:02:25 | 10s | 95 | 8 | 17 |