Jetpack Boost – Website Speed, Performance and Critical CSS

Speed up your WordPress site with one-click optimizations like Page Cache, Critical CSS, and Image CDN to improve Core Web Vitals.

v4.6.1AutomatticUpdated 2026-06-10Added Dec 31, 2020200k+ installs94% rating75% support resolved
29
Score
647
Errors
248
Warnings
+0
Change

Category Scores

Security0
Repo97
Performance94
Maintainability27

Top Issues by Category

i18n583
maintainability234
security73
performance4
repo_compliance1

Issues Details

895 issues found in latest scan

ERROR582
WordPress.WP.I18n.TextDomainMismatch

Mismatched text domain. Expected 'jetpack-boost' but got 'jetpack-admin-ui'.

WARNING61
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "'jitm_' . $envelope->CTA->hook".

WARNING54
WordPress.DB.DirectDatabaseQuery.DirectQuery

Use of a direct database call is discouraged.

WARNING41
PluginCheck.Security.DirectDB.UnescapedDBParameter

Unescaped parameter $custom_table_name used in $wpdb->get_row()\n$custom_table_name assigned unsafely at line 614.

WARNING37
WordPress.DB.DirectDatabaseQuery.NoCaching

Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

ERROR32
WordPress.Security.EscapeOutput.ExceptionNotEscaped

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '"Debug: Attempting to create {$this->action} nonce before the user is set."'.

ERROR31
missing_direct_file_access_protection

PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

WARNING13
WordPress.DB.SlowDBQuery.slow_db_query_meta_key

Detected usage of meta_key, possible slow query.

WARNING11
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$boost_css_concatenate".

WARNING10
WordPress.DB.SlowDBQuery.slow_db_query_meta_value

Detected usage of meta_value, possible slow query.

WARNING5
Squiz.PHP.DiscouragedFunctions.Discouraged

The use of function ini_set() is discouraged

WARNING4
WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound

Global constants defined by a theme/plugin should start with the theme/plugin prefix. Found: "DONOTCACHEPAGE".

WARNING3
trademarked_term

The plugin name includes a restricted term. Your chosen plugin name - "Jetpack Boost - Website Speed, Performance and Critical CSS" - contains the restricted term "jetpack" and cannot be used to begin your plugin name. We disallow the use of certain terms in ways that are abused, or potentially infringe on and/or are misleading with regards to trademarks. You may use the term "jetpack" elsewhere in your plugin name, such as "... for jetpack".

WARNING2
WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_exclude

Using exclusionary parameters, like exclude, in calls to get_posts() should be done with caution, see https://wpvip.com/documentation/performance-improvements-by-removing-usage-of-post__not_in/ for more information.

WARNING2
WordPressVIPMinimum.Performance.WPQueryParams.PostNotIn_post__not_in

Using exclusionary parameters, like post__not_in, in calls to get_posts() should be done with caution, see https://wpvip.com/documentation/performance-improvements-by-removing-usage-of-post__not_in/ for more information.

WARNING2
update_modification_detected

Plugin Updater detected. Detected code which may be altering WordPress update routines. Detected: _site_transient_update_plugins

WARNING1
PluginCheck.CodeAnalysis.DiscouragedFunctions.load_plugin_textdomainFound

load_plugin_textdomain() has been discouraged since WordPress version 4.6. When your plugin is hosted on WordPress.org, you no longer need to manually include this function call for translations under your plugin slug. WordPress will automatically load the translations for you as needed.

ERROR1
PluginCheck.CodeAnalysis.WriteFile.PluginDirectoryWrite

Plugin folders are deleted when upgraded. Do not save data to the plugin folder using file_put_contents(). Detected usage of constant WP_CONTENT_DIR. Use wp_upload_dir() to get the uploads directory path or save to the database instead.

WARNING1
mismatched_plugin_name

Plugin name "Jetpack Boost - Website Speed, Performance and Critical CSS" is different from the name declared in plugin header "Jetpack Boost".

WARNING1
plugin_header_nonexistent_domain_path

The "Domain Path" header in the plugin file must point to an existing folder. Found: "languages"

ERROR1
plugin_updater_detected

Plugin Updater detected. These are not permitted in WordPress.org hosted plugins. Detected: site_transient_update_plugins

Latest Snapshot

Findings

895

Errors

647

Warnings

248

Score History

First score snapshot

First scan completed Jun 19, 2026

v4.6.1 · Plugin Check 2.0.0 · Model 2026.06-mvp-static-v2

Jun 19, 2026

v4.6.1

29

Latest

Findings
895
Errors
647
Warnings
248
Plugin Check
2.0.0
Model
2026.06-mvp-static-v2

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